my BMW X3 F25 (2011-2018) shakes when I accelerate what's happening

Solution

1. Preparation

• Tools Required: Jack and jack stands, wheel chocks, OBD-II scanner, torque wrench, socket set.
• Ensure the vehicle is parked on a flat surface, engage the parking brake, and chock the rear wheels for safety.

2. Tire Inspection and Replacement

• Sub-steps:
  1. Remove the wheel covers if applicable, using the appropriate socket.
  2. Loosen the lug nuts slightly without removing them completely.
  3. Lift the vehicle using a jack and secure it with jack stands.
  4. Remove the lug nuts and take off the wheel.
  5. Inspect the tire for uneven wear, bulges, or foreign objects.
  6. If necessary, replace the tire with a new one, ensuring it is properly inflated to the manufacturer’s specifications.
  7. Reinstall the wheel, hand-tighten the lug nuts, lower the vehicle, and then torque the lug nuts to the manufacturer’s specifications.

3. Drivetrain Component Inspection

• Sub-steps:
  1. With the vehicle still lifted, inspect the driveshaft for any signs of damage or excessive play.
  2. Check CV joints for wear; if cracked or damaged, replace them.
  3. Inspect the u-joints for looseness; replace if necessary.
  4. If no issues are found, check the engine and transmission mounts for signs of wear; replace any that are cracked or deteriorated.

4. Final Assembly and Testing

• Sub-steps:
  1. Reinstall any components removed for access, ensuring all fasteners are torqued to specifications.
  2. Lower the vehicle and perform a test drive to confirm that the shaking during acceleration has been resolved.