Is a Tyre Wear Advisory Serious?
It can be. Tyres are safety-critical because they provide the contact between the vehicle and the road. A tyre wear advisory normally means the tester has identified deterioration worth bringing to the owner's attention, even though the condition did not cause the tyre to be rejected at that MOT.
What does the advisory mean?
The tyre passed the MOT assessment at that time, but wear or deterioration was significant enough to record. The exact wording matters because tread wear, edge wear and physical tyre damage represent different problems.
What is the legal tread requirement?
For most cars, the primary tread grooves must be at least 1.6 mm deep within the central three-quarters of the breadth of tread and around the entire outer circumference.
What should you do next?
Measure the remaining tread, inspect the complete tyre including the inner edge, check pressures and establish whether the wear is even. If one area is wearing abnormally, diagnose the cause before simply fitting another tyre.
The 1.6 mm requirement is the legal minimum for most cars; it is not a target that every tyre should deliberately be driven down to. Remaining tread, weather, mileage, wear rate and tyre condition all matter when deciding when replacement is sensible.
Never judge a tyre advisory from the most visible outer tread block alone. A tyre can have reasonable-looking tread on the outside while the inner shoulder is heavily worn because of alignment, suspension geometry or pressure problems. Inspect across the tyre and around its circumference.
The driver or vehicle keeper remains responsible for the tyre's condition between MOT tests. If tread drops below the legal requirement or a serious tyre defect develops after the MOT, the previous pass does not make continued use acceptable.
What Does a Tyre Wear Advisory Mean?
A tyre wear advisory means the MOT tester identified deterioration that was worth bringing to the vehicle owner's attention but did not result in that tyre being rejected at the time of the test. The important point is that an advisory describes the condition seen on the test date; it does not predict how long the tyre will remain legal or serviceable afterwards.
Tyre advisories can relate to tread becoming worn, an uneven wear pattern, deterioration or another condition that has not yet reached the relevant MOT rejection threshold. The exact advisory wording is therefore more useful than simply seeing the word "tyre" in the MOT history.
The tester noticed deterioration
An advisory is useful early warning information. It identifies a condition that deserves attention even though the tyre was not rejected for that defect during the test.
The tyre will continue to wear
Tyre condition can change considerably between annual MOT tests. Mileage, pressure, alignment, driving conditions and existing wear patterns can all affect how quickly remaining tread is lost.
Inspect the complete tyre
Check remaining tread depth, inner and outer shoulders, pressure and visible condition. If the wear is uneven, investigate why it is happening before assuming that tyre replacement alone will solve the problem.
A tyre advisory means the condition recorded did not result in rejection at that MOT. A tyre that actually falls outside the MOT requirements can instead receive a defect classification and fail. The condition of the tyre on the day of inspection determines the result.
Tyres are consumable safety components. A tyre that was legal when tested can wear below the legal tread requirement long before the next MOT, particularly on a high-mileage vehicle or where abnormal wear is already developing.
Understanding Tyre Tread Before Judging an Advisory
Tread depth is not simply a single measurement taken from the easiest part of the tyre to reach. The tread pattern extends across the tyre and around its circumference, and different areas can wear at different rates. That is why a tyre can appear healthy from outside the wheel arch while having substantially less tread elsewhere.
The tread grooves help the tyre maintain contact with the road, particularly when water is present. As tread wears, there is less groove depth available to manage water. Tread condition therefore matters for both legal compliance and real-world wet-road performance.
Central tread area
This is where the statutory tread-depth requirement applies for most passenger cars. Measurements should be taken in the relevant primary grooves rather than from an arbitrary shallow feature in the tread pattern.
Inner shoulder
The inner edge is easy to overlook when the vehicle is standing normally. Excessive negative camber, toe errors, worn suspension components or previous geometry problems can concentrate wear here.
Outer shoulder
Outer-edge wear can be associated with alignment, cornering loads, pressure problems or driving conditions. Compare it with the centre and inner areas rather than assessing it in isolation.
Tread wear indicators
Many tyres have moulded tread wear indicators positioned within the main grooves. These can provide a useful visual warning that tread is becoming low, but they do not replace proper measurement when you need to establish the tyre's actual remaining tread depth.
Measure several positions
Check more than one point around the circumference because local wear can be missed by a single measurement.
Compare across the tread
Comparing inner, centre and outer areas helps reveal abnormal wear that may require alignment, pressure or suspension investigation.
Use a tread-depth gauge
A proper tread-depth gauge provides a more useful measurement for maintenance decisions than judging the tyre by appearance alone.
When a tyre has an MOT wear advisory, record actual tread readings rather than simply writing "low". Measurements make it much easier to judge wear rate at the next service and identify whether one part of the tyre is deteriorating faster than the rest.
What Is the Legal Tyre Tread Depth in the UK?
For most cars, the required tread depth is at least 1.6 mm throughout a continuous band comprising the central three-quarters of the breadth of tread and around the entire outer circumference of the tyre. The MOT assessment also considers whether the required tread pattern is present where the rules apply.
This requirement is important because a tyre can have more than 1.6 mm in one measured position and still have an unacceptable worn area elsewhere within the required tread band. Checking only the deepest or easiest-to-reach groove can therefore give a misleading impression.
1.6 mm
For most passenger cars, this is the minimum required tread depth in the relevant primary grooves within the statutory tread area.
Central three-quarters
The tread requirement applies across a continuous band comprising the central three-quarters of the breadth of tread rather than simply one narrow groove.
Entire circumference
The required tread depth must be maintained around the tyre's entire outer circumference. One excessively worn section can therefore matter even when other areas measure better.
A tyre being above 1.6 mm today does not guarantee that it will remain above the requirement for a particular number of weeks or miles. When tread is becoming low, consider current depth, expected mileage, wear rate, weather and whether the tyre is wearing evenly.
How should you check tread after an advisory?
1. Position the vehicle safely
Park securely on level ground where the tread can be inspected properly. Turn the steering where appropriate to improve access to the front tyre tread.
2. Measure the primary grooves
Use a tread-depth gauge and take readings in the relevant main grooves rather than relying on appearance or a single point.
3. Check around the tyre
Inspect several positions around the circumference so that localised wear, flat areas or an abnormal patch are not missed.
4. Inspect the whole condition
Tread depth is only part of tyre safety. Also check for cuts, bulges, cracking, exposed reinforcement, foreign objects and abnormal pressure loss.
A coin can provide a rough visual prompt, but it cannot diagnose uneven inner-edge wear or give you the same useful measurement as a tread-depth gauge. After an MOT advisory, measure the tyre properly and inspect its complete visible condition.
What Different Tyre Advisory Wording Can Mean
Do not assume every tyre advisory means exactly the same thing. Read the wording in the MOT history carefully because it can indicate whether the tester was concerned primarily about remaining tread, abnormal wear or general tyre condition.
Tyre worn close to the legal limit
This usually indicates that remaining tread was becoming low but had not reached the rejection threshold at the time of the test. Measure it promptly and plan replacement according to its actual condition and expected use.
Tyre wearing unevenly
This tells you to look beyond simple tread depth. One shoulder or section may be deteriorating faster than the rest, potentially pointing to pressure, alignment, geometry or suspension issues.
Tyre deterioration noted
Where the wording relates to condition rather than tread alone, inspect the tyre carefully for cracking, ageing, cuts, sidewall deterioration or other visible defects and establish exactly what the tester observed.
If similar tyre advisories appear repeatedly, compare the affected wheel positions. Repeated inner-edge wear on the same axle is more informative than treating each advisory as an unrelated worn tyre. It may point towards an underlying geometry, suspension or pressure problem.
MOT history is valuable evidence, but it is not a full wheel alignment or suspension diagnosis. If wear is abnormal, inspect the vehicle and measure the tyre before replacing parts based only on the wording of an older MOT result.
What Different Tyre Wear Patterns Can Tell You
The location and shape of tyre wear can provide useful diagnostic clues. A tyre that has worn evenly after normal service presents a different problem from one with a bald inner shoulder, worn outer edges or irregular patches across the tread.
Wear patterns should be treated as clues rather than automatic proof of one particular fault. Tyre pressure, wheel geometry, suspension condition, loading, road impacts and driving style can overlap, so a proper diagnosis considers the vehicle as a complete system.
Wear across the tread
Relatively even wear is more consistent with normal tyre use, although remaining tread still needs measuring. If all areas are becoming low, replacement is primarily a tyre-life decision.
Inner and outer edges wearing
Wear concentrated towards both shoulders can be associated with prolonged under-inflation, heavy loading or operating conditions that cause the shoulders to work harder.
Centre wearing faster
A centre section wearing noticeably faster than the shoulders can be associated with inflation or tyre-shape effects. Confirm the manufacturer's correct pressure and inspect the full tread before drawing conclusions.
Inner-edge wear
Heavy inner-edge wear is particularly important because it can be difficult to see with the vehicle on the ground. Alignment, camber, toe, suspension wear or geometry changes may contribute.
Outer-edge wear
Excessive outer-shoulder wear can be influenced by geometry, pressure, repeated cornering loads or vehicle use. Compare both tyres on the axle and check whether the steering geometry is correct.
Cupping, scalloping or patchy wear
Repeated high and low areas around the tread deserve further investigation. Suspension damping, wheel balance, bearing condition, geometry and previous tyre damage may all need consideration.
What the wear pattern changes about the repair
Normal wear
If tread is wearing evenly and the vehicle has no other symptoms, the main decision is when the tyre should be replaced based on remaining condition and expected use.
Abnormal wear
If one area is disappearing significantly faster, fitting a new tyre without investigating the cause can simply transfer the same wear pattern to the replacement tyre.
Several tyres affected
Similar abnormal wear across several tyres can justify checking pressures, alignment, suspension condition and how the vehicle is being loaded or used before deciding on the full repair scope.
Do not throw away the information contained in the old tyre. Before replacement, note where it has worn and compare the opposite tyre on the same axle. The pattern can help a technician decide whether further alignment, steering or suspension checks are justified.
Inner-edge wear is one of the easiest conditions to miss during a casual driveway inspection. If the MOT has already recorded tyre wear, inspect the complete accessible tread rather than judging the tyre from the outer shoulder alone.
How to Inspect a Tyre After an MOT Wear Advisory
A proper tyre inspection should establish three things: how much usable tread remains, whether the wear is even, and whether there is any physical damage that makes the tyre unsafe regardless of tread depth. Looking at only one visible part of the tyre is not enough.
Start with the advisory wording and then inspect the complete accessible tyre. Compare the affected tyre with the opposite tyre on the same axle. This helps separate normal end-of-life tread wear from a developing pressure, alignment or suspension problem.
1. Measure tread depth
Use a tread-depth gauge in the relevant primary grooves and take several readings around the circumference. Record the lowest meaningful measurement rather than relying on the best-looking part of the tyre.
2. Compare across the tread
Check the inner, centre and outer parts of the tread. A large difference between these areas is more important diagnostically than one isolated depth figure.
3. Check physical condition
Look for cuts, bulges, cracking, exposed reinforcement, foreign objects, distortion, impact damage and signs of repeated pressure loss.
4. Compare the axle
Inspect the tyre on the opposite side. Similar wear on both tyres suggests a different cause from severe wear affecting only one wheel.
What should be checked beyond tread depth?
Bulges and impact damage
A bulge can indicate structural damage within the tyre and should never be dismissed simply because tread depth is still good.
Repeated pressure loss
A tyre that repeatedly loses pressure needs investigation for a puncture, valve leak, bead-sealing problem, wheel damage or tyre deterioration.
Cracking and deterioration
Surface condition should be assessed separately from tread depth. A tyre can retain visible tread while ageing, cracking or suffering sidewall deterioration.
Write down the tread readings for each tyre position. On a vehicle with repeated MOT tyre advisories, comparing measurements over time can expose a wear-rate problem that is easy to miss during a single inspection.
The inner edge of a tyre can wear heavily while remaining difficult to see with the vehicle standing normally. If an advisory mentions wear, inspect as much of the complete tread as safely accessible or have the vehicle lifted for a proper inspection.
What Causes Uneven or Rapid Tyre Wear?
Tyre wear is the result, not always the fault itself. When a tyre wears much faster on one edge, develops irregular patches or deteriorates unusually quickly, the underlying cause should be investigated before another tyre is fitted.
Pressure, geometry, suspension condition, loading, road impacts and driving style can all change how the tread contacts the road. More than one factor may be present at the same time.
Incorrect tyre pressure
Running below or above the manufacturer's recommended pressure can alter the tyre's contact pattern and increase wear. Persistent pressure loss should be repaired rather than repeatedly topped up without diagnosis.
Wheel alignment or tracking
Incorrect toe or other geometry settings can cause one shoulder to scrub against the road. Potholes, kerb impacts, suspension work and worn components can all contribute to alignment changes.
Worn bushes, joints or dampers
Suspension wear can allow wheel geometry to move outside its intended position under braking, acceleration or cornering. This can contribute to irregular tyre contact and abnormal wear.
Steering component wear
Worn steering joints or other play can affect wheel control and alignment stability. Tyre wear may be one of several symptoms, alongside wandering, pulling or an off-centre steering wheel.
Potholes and kerb strikes
An impact can alter wheel alignment, damage a wheel or affect suspension geometry. If abnormal wear appears after a significant impact, inspect more than the tyre alone.
Loading and driving conditions
Heavy loads, frequent cornering, repeated stop-start use, high mileage and unsuitable pressures for the load can all change tyre wear rate.
Common clues that the cause is not just normal tyre wear
One tyre wears much faster
A large difference between left and right tyre wear can justify checking alignment, suspension, steering and wheel condition.
Steering wheel is off-centre
An off-centre wheel while travelling straight can accompany geometry problems, although it should not be used as proof of a specific alignment fault by itself.
Vehicle pulls or wanders
Pulling can involve tyre pressure, tyre construction, road camber, brakes, alignment or suspension. A proper comparison is needed before parts are replaced.
If the previous tyre has an abnormal wear pattern, fitting a new tyre without addressing pressure, geometry or worn components can result in the replacement developing the same problem.
How a Mechanic Diagnoses a Tyre Wear Advisory
A useful diagnosis starts with the tyre but does not end there. The technician should identify the wear pattern, compare the opposite side, confirm pressures and then decide whether alignment, steering or suspension checks are justified.
1. Confirm the MOT concern
Read the advisory wording and identify which tyre position was recorded. Inspect that tyre rather than assuming the issue relates to every tyre on the vehicle.
2. Measure and map the wear
Record tread depths across the tyre and around its circumference. Note whether wear is even, shoulder-biased, central or irregular.
3. Check inflation and condition
Compare pressures with the vehicle manufacturer's specification and inspect for punctures, valve leakage, bead problems, wheel damage and tyre deterioration.
4. Inspect related components
If the pattern is abnormal, inspect steering and suspension joints, bushes, springs, dampers, wheel bearings and visible geometry before relying on an alignment adjustment alone.
Workshop decision process
Normal end-of-life wear
If wear is even, pressure is correct and no related defect is found, replacement may simply be normal tyre maintenance.
Uneven shoulder wear
If one shoulder is wearing noticeably faster, geometry measurement may be justified after confirming that steering and suspension components are sound enough to align correctly.
Mechanical fault present
If worn joints, damaged components or excessive play are found, repair those faults before or alongside alignment so the new tyre is not fitted to an unstable geometry condition.
Wheel alignment is not a substitute for repairing worn steering or suspension parts. If a joint or bush allows uncontrolled movement, geometry settings may not remain correct after adjustment.
Alignment is a common cause of abnormal tyre wear, but pressure, suspension condition, tyre construction, wheel damage and operating conditions can produce similar symptoms. Use the wear pattern as a diagnostic clue rather than a final diagnosis.
Can You Drive With a Tyre Wear Advisory?
An advisory on its own does not automatically mean the vehicle must be taken off the road. What matters is the tyre's actual current condition. If the tyre still meets the legal requirements and has no dangerous defect, the advisory may simply mean that repair or replacement should be planned.
That position can change after the MOT. Tyres continue to wear, so a tyre that was legal on the test date can later become illegal or unsafe before the next MOT is due.
Legal tread and even wear
If tread remains comfortably legal, wear is even and there is no structural damage or pressure problem, continued monitoring may be appropriate while replacement is planned.
Low tread or active uneven wear
If tread is becoming low or one area is wearing rapidly, arrange replacement or diagnosis soon. Continuing high mileage can turn a manageable advisory into an illegal tyre.
Serious damage or illegal condition
Exposed reinforcement, significant structural damage, a serious bulge or tread that no longer meets the legal requirement should not be treated as an advisory-level maintenance issue.
Stop normal driving and arrange urgent attention if...
- ✓ The tyre no longer meets the legal tread requirement.
- ✓ Reinforcement or cords are exposed.
- ✓ A serious bulge, lump or structural distortion is visible.
- ✓ The tyre has major cuts or obvious structural damage.
- ✓ Pressure falls repeatedly and the cause has not been identified.
- ✓ Severe inner-edge wear is found after initially appearing hidden.
The MOT records the vehicle's condition against the test requirements at the time of inspection. The vehicle must still remain safe and roadworthy afterwards. If the tyre deteriorates into an illegal or dangerous condition, the earlier MOT pass does not make continued driving acceptable.
There is no fixed number of miles that a tyre wear advisory will remain acceptable. If you cover substantial mileage, check tread more frequently because the condition can change much sooner than on a low-mileage vehicle.
When Does Tyre Wear Become an MOT Failure?
A tyre wear advisory and a tyre MOT failure are not the same thing. An advisory records deterioration that did not result in rejection at that test. If the tyre reaches one of the prescribed rejection conditions, the MOT result changes according to the defect found.
For most cars, the primary tread grooves must be at least 1.6 mm deep within the central three-quarters of the breadth of tread and around the entire outer circumference. If the tread no longer meets that requirement, the tyre defect is classified as Dangerous under the current MOT inspection manual.
Below the required tread depth
MOT Result: DangerousTyre tread depth that does not meet the applicable requirement is a Dangerous MOT defect. For most cars this means the required 1.6 mm depth has not been maintained in the statutory tread area.
Bulge, separation or exposed cords
MOT Result: DangerousA lump, bulge or tear caused by structural separation or partial failure, lifting tread rubber, or exposed or damaged cords is classified as Dangerous.
Excessive cut reaching ply or cords
MOT Result: MajorA cut exceeding the permitted criteria and deep enough to reach the ply or cords is a Major defect. The tester uses the prescribed cut assessment procedure rather than judging the tyre from cut length alone.
Obviously under-inflated tyre
MOT Result: MinorA tyre that is obviously under-inflated is currently classified as a Minor defect. Repeated pressure loss still needs diagnosis because a puncture, valve, bead or wheel problem may be present.
Valve likely to cause sudden deflation
MOT Result: DangerousA tyre valve that is seriously damaged or misaligned and likely to cause sudden deflation is classified as a Dangerous defect.
Wear that remains above rejection level
MOT Result: May Pass With AdviceWear that has not reached an MOT rejection condition may still be recorded for the vehicle owner to monitor. The actual wording and measured tyre condition should guide what happens next.
Under the current DVSA MOT manual, tyre tread depth that does not meet the applicable requirement is classified as Dangerous. That is why a tyre already near the legal limit should not simply be left until the next annual MOT.
Uneven wear by itself should not be described as an automatic MOT failure. What matters is whether the remaining tread, tyre structure, cuts or other condition meets a specific rejection criterion. The abnormal wear can nevertheless be valuable evidence that alignment, pressure or suspension needs investigation.
If the tyre has passed but is approaching a rejection condition, repairing the cause and replacing the tyre before it reaches that point is usually preferable to waiting for an MOT failure.
When Should You Replace a Tyre After an Advisory?
There is no single mileage or number of months that applies to every tyre advisory. The correct decision depends on remaining tread, physical condition, wear pattern, expected mileage, season and whether an underlying fault is continuing to damage the tyre.
The legal minimum should be treated as a compliance threshold, not as a promise that a tyre with slightly more tread will remain suitable for all future use. A tyre that is already close to the requirement can cross it relatively quickly if the vehicle covers substantial mileage.
Illegal or structurally unsafe
Replace the tyre if it no longer meets the legal tread requirement or has a serious structural defect such as exposed cords or a damaging bulge. This is no longer routine advisory monitoring.
Low remaining tread
If the tyre remains legal but has little tread margin left, plan replacement according to mileage and use rather than assuming it will last until the next MOT.
Abnormal wear pattern
When one shoulder or one tyre is wearing much faster, diagnose pressure, alignment, steering and suspension before allowing the same fault to shorten the life of the replacement tyre.
Replacement priority by tyre condition
Tread comfortably above the minimum
If wear is even, the tyre has no significant damage and tread is comfortably above the legal requirement, regular measurement may be appropriate.
Tread becoming low
Short remaining tread life means the tyre should be budgeted and replaced before normal use takes it beyond the legal requirement.
Damage or illegal tread
Do not delay when the tyre has reached an illegal or dangerous condition. The earlier advisory does not reduce the seriousness of the tyre's current state.
Drivers and tyre businesses may choose to plan replacement above the statutory minimum for reasons such as wet-weather use, expected mileage or seasonal driving. That should be presented as a maintenance decision, not confused with the legal 1.6 mm tread requirement for most cars.
If the old tyre shows severe one-sided or irregular wear, ask why. Paying for another tyre without correcting a geometry, pressure or suspension problem can make the replacement wear prematurely.
Should You Replace One Tyre or Both Tyres on the Axle?
A tyre does not automatically need replacing simply because the tyre on the opposite side of the axle needs one. However, the condition, size, construction, tread difference and vehicle manufacturer requirements should all be considered before deciding to fit only one replacement.
The aim is to maintain predictable grip and compatible tyres across the axle. On some vehicles, especially certain four-wheel-drive or all-wheel-drive systems, tyre circumference differences can also matter to the drivetrain, so manufacturer guidance is important.
One replacement may be reasonable
If the opposite tyre is relatively recent, healthy, compatible and has substantial tread remaining, replacing only the damaged or worn tyre may be appropriate.
Two tyres may make more sense
If both tyres are nearing the end of their useful life or there is a large condition or tread difference between them, replacing the axle pair can provide a more balanced long-term solution.
Check manufacturer requirements
Performance, four-wheel-drive and all-wheel-drive vehicles may have tighter requirements for tyre specification or rolling circumference. Check the handbook or manufacturer information before mixing significantly different tyre conditions.
What should match across an axle?
Correct tyre size
The replacement must be suitable for the wheel and vehicle. Current MOT rules also reject tyres of different sizes on the same axle where the defect criteria apply.
Correct tyre structure
Tyres on the same axle must not be of incompatible different structures under the MOT requirements. Fitment should also meet the vehicle and tyre manufacturer's specifications.
Sensible tread balance
Even where one replacement is legally possible, very different remaining tread depths across the axle can influence how the two tyres respond in poor conditions. Consider the practical balance, not only the minimum legal test.
Pair replacement can be sensible, but it should be a condition-based decision rather than an automatic sales rule. Measure the opposite tyre, check its age and condition, confirm vehicle requirements and then decide whether one or two tyres are justified.
How Much Does It Cost to Replace a Tyre in the UK?
Tyre prices vary considerably with wheel size, speed and load rating, brand, vehicle type and whether the tyre uses specialist technology such as run-flat construction. Fitting, balancing, disposal and wheel alignment can also affect the final bill.
The figures below are broad planning ranges rather than fixed quotes. Larger SUV, performance and premium-brand tyres can cost substantially more, while some small-car sizes may cost less.
Budget / Small-Car Tyre
£55–£90 eachCommon smaller wheel sizes may fall into this range depending on tyre brand, specification and local fitting charges.
Mid-Range Tyre
£80–£140 eachMid-range tyres in common 16 to 18-inch sizes often sit within this broad bracket, although exact specification can move the price significantly.
Premium Tyre
£110–£220+ eachPremium brands, larger wheels, higher speed ratings and specialist vehicle fitments can move tyre costs well above basic replacement prices.
Two Tyres on One Axle
£120–£400+Replacing an axle pair roughly doubles the tyre cost but may make sense when both tyres are similarly worn or a balanced replacement is preferred.
Wheel Alignment Check
£40–£100+Basic front tracking may cost less than a full four-wheel geometry setup. More advanced systems and adjustment work can cost more.
Suspension Repair + Tyre
£150–£600+If uneven wear is being caused by worn suspension or steering components, the total repair can rise considerably beyond the cost of the tyre itself.
A cheap replacement tyre is not a complete repair if the previous tyre was destroyed by alignment or suspension problems. When wear is abnormal, budget for diagnosis and any necessary geometry or mechanical correction as well.
Tyre Advisory Repair Decision Guide
| Tyre condition | Likely action | Typical planning cost | Priority |
|---|---|---|---|
| Legal tread, even wear and no damage | Monitor tread and pressure | £0–£20 for gauge/checks | Lower immediate risk |
| Low tread but otherwise healthy | Plan tyre replacement | Roughly £55–£220+ per tyre | Fix soon |
| Both tyres on axle nearing replacement | Consider replacing axle pair | Roughly £120–£400+ | Plan soon |
| One-sided or rapid wear | Tyre plus alignment diagnosis | Tyre cost + roughly £40–£100+ alignment | High priority |
| Worn suspension causing tyre wear | Repair fault, align and replace tyre as required | Often £150–£600+ depending on fault | High priority |
| Illegal tread, exposed cords or serious structural damage | Replace before normal road use | Tyre cost depends on specification | Urgent |
If the tyre no longer meets the legal tread requirement or has a serious structural defect, delaying replacement to save money is not a sensible maintenance strategy. Determine why the tyre failed, repair any underlying cause and restore the vehicle to a roadworthy condition.
Will a Tyre Wear Advisory Fail the Next MOT?
It can, but an advisory does not automatically predict a future MOT failure. The next result depends on how much the tyre wears after the advisory, whether an underlying cause is corrected and whether any new damage develops before the vehicle is tested again.
A tyre that was comfortably above the rejection threshold and then covers very little mileage may remain serviceable for some time. A tyre already close to the legal tread requirement on a high-mileage vehicle may cross the threshold much sooner.
Wear remains slow and even
If tread depth remains healthy, pressure is correct and wear stays even, the tyre may remain acceptable. Continue measuring it rather than relying on the previous MOT result.
Tread was already close to the limit
A tyre with little remaining tread margin has a greater chance of reaching an MOT rejection condition before the next annual test, particularly if the vehicle covers substantial mileage.
Uneven wear is still active
If alignment, pressure, steering or suspension problems continue wearing one part of the tyre rapidly, the tyre may become unacceptable even though other parts of the tread still look good.
What increases the chance of a future tyre MOT failure?
High annual mileage
More miles generally mean more tread is consumed between tests. Drivers covering substantial mileage should check advised tyres more frequently.
Incorrect pressure
Persistent under-inflation or unsuitable pressure can accelerate abnormal wear and may shorten the usable life of the tyre.
Uncorrected geometry
A tyre can continue losing tread rapidly on one shoulder if the geometry or mechanical cause of the original wear remains present.
Suspension deterioration
Worn bushes, joints, dampers or other suspension problems can contribute to abnormal tyre contact and continuing wear.
Pothole or kerb damage
A later impact can alter alignment or damage the tyre even if the advisory condition was originally stable.
No checks between MOTs
Waiting twelve months before looking at the tyre again removes the opportunity to catch a developing illegal or unsafe condition early.
Record the tread depth when the advisory first appears and recheck it periodically. Comparing actual measurements gives you a much better indication of remaining tyre life than trying to predict it from the MOT wording alone.
The MOT is an annual inspection, not a twelve-month guarantee. Tyres should be checked between tests and before long journeys so a developing tread or structural problem can be dealt with before it becomes a roadworthiness issue.
Should You Buy a Car With a Tyre Wear Advisory?
A tyre wear advisory does not automatically make a used car a bad buy. Tyres are normal wear items, and a car that simply needs one or two tyres may still be perfectly reasonable if the condition is understood and the price reflects the work required.
The concern becomes greater when the advisory reveals a pattern rather than routine tyre wear. Repeated inner-edge wear, several tyres wearing abnormally, suspension advisories or a history of the same wheel position wearing tyres can point towards an unresolved mechanical or geometry problem.
Normal tyre wear
If the tyre is simply nearing replacement after normal use and the rest of the vehicle checks out, budget for the tyre and judge the car on its wider condition.
Several tyres need replacing
If two or four tyres are near the end of their useful life, obtain realistic replacement prices before buying. Larger wheels and premium specifications can turn apparently minor advisories into a significant immediate cost.
Repeated abnormal wear
Repeated one-sided tyre wear deserves further inspection. Check suspension, steering, alignment and signs of previous wheel or accident damage before committing to the vehicle.
Used Car Tyre Advisory Checklist
- ✓ Read the exact tyre advisory wording in the MOT history.
- ✓ Check which wheel position was affected.
- ✓ Measure tread depth across each tyre rather than looking only at the outer edge.
- ✓ Inspect the inner shoulders for hidden wear.
- ✓ Check for bulges, cuts, cracking and other physical damage.
- ✓ Compare tyre brands, sizes, specifications and remaining tread.
- ✓ Check whether similar advisories appear repeatedly in earlier MOTs.
- ✓ Look for suspension or steering advisories appearing at the same time.
- ✓ During the test drive, note pulling, wandering, vibration or an off-centre steering wheel.
- ✓ Price any tyres, alignment work or suspension repairs before agreeing the purchase price.
Good sign
The advisory was followed by documented tyre replacement, current tyres are wearing evenly and no related steering or suspension symptoms are present.
Negotiation point
The tyres remain legal but replacement is clearly approaching. Work out the real fitted cost and factor it into the purchase decision.
Buying warning
Repeated severe inner-edge wear, several related MOT advisories or obvious suspension and steering symptoms deserve professional inspection before purchase.
One tyre advisory may simply reflect a consumable part reaching the end of its life. The same advisory appearing repeatedly can tell a different story. Look at the sequence of results, wheel positions and related defects rather than judging one MOT in isolation.
If a seller says the advisory was repaired, inspect the current tyre and ask what work was actually completed. A replacement tyre is not evidence that the cause of abnormal wear was corrected.
Related Tyre and MOT Guides
Continue through the Motor Vehicle Expert MOT knowledge centre for more guidance on tyre failures, common MOT defects, wheel alignment and advisory decisions.
Most Common MOT Advisories Explained
Understand the most common brake, tyre, suspension, corrosion, oil-leak and exhaust advisories found on UK MOT histories.
MOT advisory hub →Car Fails MOT on Tyres
Learn how tread depth, tyre damage and other tyre defects can result in MOT failure and what should be checked before a retest.
Read tyre MOT guide →Does MOT Check Wheel Alignment?
Understand the difference between an MOT inspection and a dedicated wheel-alignment check when tyre wear is uneven.
Wheel alignment MOT guide →Common MOT Failure Reasons UK
See the wider range of defects that commonly cause MOT problems, including tyres, brakes, suspension, lights and emissions.
Common MOT failures →How to Prepare for an MOT Test
Work through practical checks before the test so straightforward tyre and vehicle-condition problems can be identified early.
MOT preparation guide →Tyre Wear Advisory FAQs
These are the most common questions UK drivers ask about tyre wear advisories, legal tread depth, uneven wear, MOT failures, tyre replacement and used car buying.
What does a tyre wear advisory mean?
A tyre wear advisory means the MOT tester identified tyre wear or deterioration worth bringing to your attention, but that condition did not result in rejection at the time of the test. Check the exact advisory wording and inspect the tyre rather than assuming it will remain acceptable until the next MOT.
Is a tyre wear advisory serious?
It can be. Tyres are safety-critical components, and an advisory may indicate that tread is becoming low, wear is abnormal or tyre condition is deteriorating. The seriousness depends on the tyre's current tread depth, wear pattern and physical condition.
Can I drive with a tyre wear advisory?
An advisory does not automatically prevent continued driving, but the tyre must still meet the legal requirements and remain roadworthy. If it has illegal tread, exposed reinforcement, serious structural damage or another dangerous defect, do not treat it as a routine advisory.
What is the legal tyre tread depth in the UK?
For most cars, the required tread depth is at least 1.6 mm throughout a continuous band comprising the central three-quarters of the breadth of tread and around the entire outer circumference of the tyre.
Does a tyre below 1.6 mm fail an MOT?
For most cars, yes. If the tyre does not meet the applicable tread depth requirement, the current MOT inspection manual classifies the tread-depth defect as Dangerous.
Will a tyre wear advisory fail the next MOT?
It can, but not automatically. The next result depends on remaining tread, mileage, wear rate, tyre condition and whether any underlying pressure, alignment or suspension problem is corrected before the next test.
How quickly can a tyre advisory become illegal?
There is no fixed mileage or time. A tyre already close to the legal tread requirement can reach it relatively quickly on a high-mileage vehicle, while a tyre with more tread and even wear may remain serviceable for considerably longer.
Should I replace a tyre as soon as it gets an advisory?
Not automatically. Measure the tread and inspect the tyre first. An illegal or structurally unsafe tyre requires urgent replacement, while a legal tyre with more remaining tread may be monitored or scheduled for replacement according to condition and expected use.
Should tyres be replaced at 3 mm?
There is no general UK legal requirement requiring most car tyres to be replaced at 3 mm. Some drivers choose to replace tyres above the statutory minimum for wet-weather performance, seasonal use or expected mileage, but that is a maintenance decision rather than the legal tread threshold.
What causes inner-edge tyre wear?
Inner-edge wear can be associated with wheel geometry, toe or camber settings, worn suspension components, steering wear, pressure problems or previous pothole and kerb impacts. The wear pattern is a diagnostic clue rather than proof of one specific fault.
Can uneven tyre wear fail an MOT?
Uneven wear is not automatically an MOT failure by itself. The tyre is assessed against the relevant tread-depth, structural damage and other tyre defect criteria. However, uneven wear can cause one area to reach a rejection condition before the rest of the tyre.
Does wheel alignment cause tyre wear?
Incorrect wheel geometry can cause rapid shoulder wear or tyre scrubbing, but alignment is not the only possible cause. Tyre pressure, worn steering or suspension parts, wheel damage and operating conditions should also be considered.
Should I get wheel alignment after replacing an unevenly worn tyre?
Alignment measurement can be sensible when the old tyre has worn abnormally, but steering and suspension components should be checked first. Alignment cannot reliably compensate for worn or damaged components that allow the wheel position to move.
Do I need to replace both tyres on the same axle?
Not automatically. Inspect the opposite tyre and consider its tread, age, condition, specification and the vehicle manufacturer's requirements. Replacing both may make sense when both are similarly worn or when a large condition difference would otherwise remain.
How much does a replacement tyre cost in the UK?
A broad planning range is roughly £55 to £220 or more per tyre, depending on size, brand, load and speed rating, vehicle type and specialist construction. Larger premium, SUV, performance and run-flat tyres can cost considerably more.
Should I buy a used car with a tyre wear advisory?
Do not automatically reject the car. Normal tyre wear may simply mean budgeting for replacement. Be more cautious when the advisory is repeated, the wear is severely uneven or the MOT history also shows steering or suspension problems.
Why does the same tyre advisory keep appearing on MOT history?
Repeated advisories can mean the tyre was never replaced, but they can also reveal an unresolved wear problem. Compare the wheel position and related suspension or steering advisories to see whether the same pattern keeps returning.
Does a valid MOT mean my tyres are safe until the next test?
No. An MOT reflects the vehicle against the test requirements at the time of inspection. Tyres continue to wear afterwards, and the vehicle keeper remains responsible for keeping the vehicle safe and roadworthy between MOT tests.