Motor Vehicle Expert
MOT Advisory Guide

Tyre Wear Advisory Explained UK

A tyre wear advisory means the MOT tester has noticed that one or more tyres are worn, wearing unevenly or getting close to the legal tread limit. The tyre may have passed the MOT today, but it could become unsafe, illegal or an MOT failure before the next test.

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Quick answer What it means Legal tread depth Can you drive? Risk dashboard When to replace Uneven wear Buying advice Related guides FAQs
Quick answer

Is a tyre wear advisory serious?

Yes, it can be serious because tyres are the only contact between the car and the road. A tyre wear advisory means the tyre was not bad enough to fail on the day, but it is no longer in ideal condition.

The most common meaning is that the tyre tread is getting close to the legal minimum, or the tyre is wearing unevenly. Even if it passed the MOT, the tyre may become illegal before the next test if the car is used regularly.

If the advisory says the tyre is “close to legal limit”, you should check the tread depth, look for uneven wear and plan replacement before the tyre becomes unsafe or illegal.

Check legal limit Tyre MOT guide
Best answer

Should you replace tyres after an advisory?

Often, yes. If the tyre is close to the legal tread limit, replacement should be planned soon. Waiting until the tyre is exactly at the legal limit can leave you with poor wet grip and a higher chance of becoming illegal before you notice.

Replacement is more urgent if the tyre is worn on the inner edge, has cuts, bulges, cracking, exposed cords, vibration, pressure loss or uneven tread across the width.

If the advisory is caused by uneven wear, replacing the tyre alone may not solve the cause. You may also need wheel alignment, suspension inspection or tyre pressure correction.

MOT advisory hub Can bald tyres fail MOT? Can low tyre tread fail MOT? Car fails MOT on tyres
Meaning

What Does “Tyre Wear Advisory” Mean On an MOT?

A tyre wear advisory usually means the MOT tester has seen tyre tread wear, edge wear, uneven wear or a tyre that is getting close to the legal limit but was still acceptable at the time of the test.

Common wording

“Tyre worn close to legal limit”

This means the tyre still had enough tread to pass the MOT, but it is nearing the point where it could become illegal. It is one of the most common tyre advisories.

If you drive many miles, it may not last until the next MOT.

Uneven wear

“Tyre wearing unevenly”

Uneven wear can mean one edge is wearing faster than the rest of the tyre. It may be caused by wheel alignment, worn suspension, incorrect tyre pressure or previous impact damage.

This needs checking because the tyre may look fine from one angle but be badly worn on the inner edge.

Condition

“Tyre deteriorated or perished”

Some tyre advisories are about tyre age, cracking, sidewall deterioration or surface damage rather than tread depth alone.

Older tyres can become less safe even if the tread depth still looks acceptable.

Advisory does not mean “ignore it for a year”

A tyre advisory is a warning. It means the tyre passed on the day, but the condition is close enough to concern the tester. Tyres wear every time the car is driven, and wear can accelerate if pressure, tracking or suspension is wrong.

This is why a tyre advisory should be checked sooner rather than simply waiting for the next MOT. A tyre can legally pass today and become illegal weeks or months later depending on mileage and wear rate.

Driving advice

Can you drive with a tyre wear advisory?

If the tyre passed the MOT and is still legal, you may be able to drive. However, you should not treat a tyre wear advisory as low importance. Tyres affect braking, steering, grip, cornering and wet-weather safety.

The risk depends on how much tread remains, how evenly the tyre is wearing, weather conditions, your mileage and whether there is any damage to the tyre.

If the tyre is close to the legal limit, avoid delaying replacement. In wet weather, low tread increases the risk of poor grip and longer stopping distances.

Do not drive if

Stop and replace or inspect urgently

  • Tread is below the legal limit.
  • Cords are visible.
  • The tyre has a bulge or sidewall lump.
  • There are deep cuts, exposed damage or cracking.
  • The tyre keeps losing pressure.
  • The car vibrates at speed.
  • The inner edge is badly worn.
  • The tyre advisory appears repeatedly in MOT history.
Risk dashboard

Tyre Wear Advisory Priority Dashboard

Use this section to decide how urgent your tyre advisory is. The safest answer depends on tread depth, wear pattern, tyre age, damage and how much you drive.

đź”´ High Risk

Replace or inspect immediately

These situations mean the tyre advisory is high priority. Do not wait for the next MOT.

đźź  Medium Risk

Plan replacement soon

These situations may not be immediate emergencies, but they should be handled before the tyre becomes illegal or unsafe.

Tread around 2mm to 3mm

This is still above the legal minimum, but replacement should be planned, especially before winter or long journeys.

Uneven wear starting

Early uneven wear should be checked before it ruins the tyre or affects handling.

Tyre wearing faster than expected

Fast wear can be caused by pressure, tracking, suspension or driving conditions.

🟢 Lower Immediate Risk

Monitor only if tread is healthy

This only applies if the tyre has good tread depth, no damage, no pressure loss and wear is even across the tyre.

Even wear

Even wear across the tyre is less concerning than one edge wearing faster.

No damage

No bulges, cuts, cracking or cords means the tyre may simply need monitoring.

Regular checks planned

Monitor tread depth and pressure every few weeks and before long journeys.

Replacement timing

How Long Will a Tyre Wear Advisory Last?

There is no exact answer because tyre wear depends on mileage, driving style, tyre quality, pressure, alignment, road conditions and whether the tyre is already wearing unevenly.

Replace now

Below or very close to legal limit

If the tyre is already close to the legal minimum, replace it now rather than waiting. A small amount of normal driving can make the tyre illegal.

Replace soon

Low but still legal tread

If tread is low but legal, plan replacement before winter, long journeys or the next MOT. Wet-weather grip reduces as tread gets lower.

Investigate cause

Uneven wear pattern

If one edge is wearing faster, the tyre may not last long even if the centre tread looks acceptable. Check alignment, suspension and pressure.

What affects tyre wear speed?

  • Annual mileage and daily driving distance.
  • Front-wheel drive, rear-wheel drive or four-wheel drive layout.
  • Tyre pressure being too low or too high.
  • Wheel alignment or tracking being out.
  • Worn suspension bushes, ball joints or shock absorbers.
  • Driving style, braking habits and cornering speed.
  • Tyre brand, compound and load rating.
  • Road surface, potholes and kerb impacts.
Wear patterns

What Causes Uneven Tyre Wear?

Uneven tyre wear is important because it can make a tyre unsafe before the visible outer tread looks obviously worn.

Tracking

Wheel alignment problems

Poor tracking or alignment can wear one edge of the tyre faster than the rest. This is common after kerb impacts, potholes or suspension work.

Does MOT check wheel alignment? →
Suspension

Worn suspension components

Worn bushes, ball joints, shock absorbers or springs can change tyre contact with the road and create uneven wear.

Suspension MOT guide →

Do this before fitting new tyres

If the old tyre has worn unevenly, ask the garage whether wheel alignment, suspension inspection or pressure correction is needed. Fitting a new tyre without fixing the cause can make the new tyre wear out quickly.

Used car buying

Should You Buy a Car With a Tyre Wear Advisory?

A tyre wear advisory is not always a reason to walk away, but it should be used when checking the real cost of the car.

Acceptable

If it only needs tyres

If the only issue is normal tyre wear and the price reflects replacement, the car may still be a sensible buy.

Negotiate

If tyres need replacing soon

Use the tyre advisory to negotiate fairly. Check whether one tyre, a pair or all four tyres may need replacing.

Be cautious

If wear is uneven

Uneven tyre wear may point to alignment, suspension damage or previous accident repair. Inspect further before buying.

Used car tyre advisory checklist

  • Check which tyre has the advisory.
  • Measure the tread depth, not just the visible outer edge.
  • Look for inner-edge wear.
  • Check for mismatched tyre brands or very old tyres.
  • Ask whether alignment has been checked.
  • Look for suspension advisories on the same MOT.
  • Price replacement tyres before buying.
  • Use the advisory to negotiate if tyres are near replacement.
Check MOT history guide Used car checklist
Repair decision

Replace, Monitor or Investigate?

Use this simple guide to decide what to do next after a tyre wear advisory.

Replace

Replace the tyre if...

  • Tread is close to the legal minimum.
  • The tyre has a bulge, cut or exposed cord.
  • The tyre keeps losing pressure.
  • The inner edge is badly worn.
  • The car is used for long journeys.
  • Wet-weather grip feels poor.
Monitor

Monitor only if...

  • Tread depth is comfortably above the minimum.
  • Wear is even across the tyre.
  • There is no damage or cracking.
  • Pressure stays stable.
  • You will recheck tread regularly.
  • The garage confirms the tyre is safe.
Investigate

Investigate the cause if...

  • Only one edge is wearing.
  • Both front tyres are wearing unevenly.
  • The steering wheel is off-centre.
  • The car pulls left or right.
  • Suspension knocks or clunks.
  • Tyres wear out faster than expected.
Frequently asked questions

FAQs About Tyre Wear MOT Advisories

Straight answers to common UK driver questions about tyre wear advisories, legal tread depth, replacement timing and MOT risk.

What does a tyre wear advisory mean?

It means the MOT tester has noticed that a tyre is worn, wearing unevenly or close to the legal limit, but it was not bad enough to fail at the time of the test.

Can I drive with a tyre wear advisory?

Usually yes if the tyre is still legal and safe, but you should check tread depth quickly and plan replacement if it is close to the limit.

Will a tyre wear advisory fail next year?

It can. If the tyre continues wearing and drops below the legal tread limit, develops exposed cords, bulges or serious damage, it can fail the next MOT.

What is the UK legal tyre tread depth?

For most cars, the minimum is 1.6mm across the central three-quarters of the tyre and around the complete circumference.

Should I replace tyres at 3mm?

Many drivers replace tyres before the legal minimum, especially around 3mm, because wet-weather braking and grip reduce as tread gets lower.

What causes inner tyre wear?

Inner tyre wear is often linked to alignment, suspension wear, incorrect pressure or previous impact damage from potholes or kerbs.

Can uneven tyre wear fail an MOT?

Yes, if the tyre is below the legal tread limit, has exposed cords, serious damage or unsafe condition. Uneven wear should be checked before it reaches that stage.

Should I buy a car with tyre advisories?

It can be acceptable if the price reflects replacement. Be more cautious if the tyre wear is uneven or appears with suspension or alignment advisories.

About this guide

Practical tyre advisory advice for UK drivers

Motor Vehicle Expert publishes practical UK vehicle guidance covering MOT advisories, tyre faults, repair costs, diagnostics, used car checks and maintenance decisions. This guide helps drivers understand tyre wear advisories before they become unsafe, illegal or an MOT failure.

Use this page alongside the main MOT advisory hub and tyre MOT guides to decide whether to replace, monitor or investigate further before the next MOT.