What are Track Rod / Tie Rod Ends?
The links between the steering rack and the front wheels — a common MOT failure.
Simplified animation — not to scale.
In plain English
Track rods (also called tie rods) are the metal arms that connect each end of the steering rack to the front wheel hubs. The ball-jointed ends — the "track rod ends" — let the wheels pivot for steering while still moving up and down with the suspension. They wear out, and worn ones are one of the most common MOT failure points.
"Think of them as the ankles of your steering — flex too much, and your feet (the wheels) point all over the place."
How it works
When the steering rack slides left or right, it pushes or pulls the track rods, which in turn swivel each front wheel. The ball joints at each end allow that movement to flex with the suspension. Over time, the joints develop play, which makes steering vague and throws the wheel alignment off — leading to uneven tyre wear.
Signs of trouble
- ⚠Clunking or knocking from the front when going over bumps
- ⚠Vague or wandering steering
- ⚠Uneven or rapid tyre wear on the inner or outer edge
- ⚠Steering wheel off-centre when driving straight
- ⚠Visible split or torn rubber boot on the joint
£100–£250 per side, fitted and aligned
Always get a written quote. Prices vary by car, region, and parts brand.