What causes steering wheel vibration when driving above 110 km/h?
1 Answers
Steering wheel vibration when driving above 110 km/h is mostly caused by wheel-related issues. The main scenarios include: 1. Wheel dynamic imbalance: The most common cause is tire imbalance. When wheels vibrate, the oscillation transmits through universal joints, steering knuckles, tie rods, steering gear, and steering column to the steering wheel. 2. Abnormal tire wear: Prolonged imbalance-induced vibration may cause irregular tire wear patterns, requiring assessment based on actual driving experience. Alternatively, incorrect wheel alignment data can cause speed-dependent vibration. 3. Improper wheel installation: Incorrect mounting can cause wheel oscillation during driving that transfers to the steering wheel, with potential wheel detachment risks. 4. Drive shaft issues: Uneven mass distribution in rotating components (like shafts) creates vibration during rotation. If half-shafts have mass imbalance, vibrations transmit through universal joints, steering linkage to the steering wheel. 5. Excessive chassis component clearance: Rubber bushings at control arm connections may degrade over time, increasing joint clearance. This causes chassis component movement during braking or lane changes, resulting in steering wheel vibration.