why does my BMW 3 Series E90/E91 (2005-2012) vibrate at high speeds?

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface, and engage the parking brake.
• Wear safety glasses and gloves.

2. Check Tire Pressure

• Use a tire pressure gauge to check the pressure of each tire.
• Inflate any under-inflated tires to the specified pressure.
• Recheck all tires after inflation.

3. Inspect and Rotate Tires

• Remove the wheel covers or hubcaps (if applicable).
• Inspect each tire for uneven wear patterns and damage.
• Rotate the tires if needed (front to back or side to side) to promote even wear.
• Use a torque wrench to ensure lug nuts are tightened to the manufacturer’s specified torque.

4. Wheel Balancing

• Remove the wheels from the vehicle.
• Use a wheel balancer to check for any imbalance.
• Add wheel weights as necessary to achieve proper balance.
• Reinstall the wheels and torque the lug nuts correctly.

5. Alignment Check

• Use a wheel alignment tool to check the alignment settings.
• Adjust camber, caster, and toe settings to meet manufacturer specifications.
• Test drive the vehicle to assess any improvement.