Quick answer
Track rod ends connect steering rack movement to the front wheels. If worn, steering can feel loose or imprecise.
MOT testers check for wear, looseness and security.
When a track rod end can fail MOT
Excessive play
Movement beyond limits.
Split boot
Rubber cover damaged.
Loose fixing
Insecure steering joint.
Knocking wear
Wear may cause noise.
Corrosion
Heavy rust damage.
Dangerous looseness
Serious steering risk.
Common symptoms
Loose steering, knocking sounds, uneven tyre wear, vague handling and poor alignment are common signs.
What to check before MOT
1. Steering feel
Notice looseness or wandering.
2. Listen for knocks
Especially over bumps.
3. Inspect tyres
Uneven wear may be linked.
4. Get inspection
A garage can confirm play safely.