Steering wheel vibrates at speed
A vibration that builds in a specific speed band - typically 80-120 km/h - and is felt mainly in the steering wheel is a front wheel out of balance or a tyre with a radial run-out or belt separation. Vibration felt through the whole car and seat rather than the wheel usually comes from the rear axle or a driveshaft. If the shake only appears when braking, it is the brakes; if it appears or changes when the road surface changes, it is suspension play or a damaged tyre carcass.
Urgency
Visit a workshop soon
Possible causes, most likely first
- Front wheel out of balance
Smooth vibration that starts around 80 km/h, peaks at a specific speed and may fade above it. Confirm by rebalancing both front wheels; a lost wheel weight (clean spot on the rim) or fresh mud and ice on the inside of the rim are common triggers. - Tyre defect: belt separation, bulge or flat spot
Vibration that balancing does not cure and that may get worse over weeks. Spin each wheel and watch the tread face for wobble or a bump; run your hand over the tread for a raised section. A tyre with a bulge on the sidewall must be replaced immediately. - Bent wheel rim
Vibration after hitting a pothole or kerb. Check on a balancer for radial and lateral run-out above about 1 mm; also look for a dent on the inner rim edge, which is often hidden from view. - Worn tie rod ends, ball joints or wheel bearings
Vibration that changes with road surface, plus vague or loose steering. With the wheel off the ground, rock it at 3 and 9 o'clock (tie rods) and 12 and 6 o'clock (ball joints and bearing) and feel for play. - Worn or incorrectly tightened wheel bolts or hub mating
Vibration right after a tyre change or wheel swap, sometimes accompanied by a ticking noise. Re-torque the bolts to spec in a star pattern and check that the hub face and wheel seat were cleaned of rust and dirt. - Worn driveshaft CV joint or inner joint
Vibration under acceleration that fades when you lift off the throttle, mainly on front-wheel-drive cars. Check the CV boots for grease leaks and feel for play in the inner joint when pushing the shaft in and out. - Steering rack or column wear
Steady shimmy felt in the wheel at any speed, often with noticeable free play at the wheel. Have a second person rock the steering while you watch the inner tie rods and rack mounts for movement.
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What you can check yourself
- Note the exact speed band where the vibration appears and whether it is in the wheel or the seat.
- Check tyre pressures and look at each tyre for bulges, uneven wear or a visible wobble when the car is rolled slowly.
- Look at the rims for missing balance weights (a clean rectangle where one used to be) and for packed mud or ice on the inside.
- Check whether the vibration started right after a tyre change, wheel swap or pothole hit.