my BMW 5 Series makes a shuddering noise when accelerating, what’s wrong?

Solution

1. Preparation

• Gather the necessary tools and parts.
• Disconnect the battery to ensure safety during repairs.
• Ensure the vehicle is on a level surface and raise it using jack stands if necessary.

2. Inspect and Replace Engine Mounts

• Sub-steps:
  1. Remove the engine cover (if applicable) to access the engine mounts.
  2. Use a socket set to unbolt the engine mounts from the engine block and the chassis.
  3. Inspect the mounts for cracks or excessive wear; if damaged, replace with new mounts.
  4. Install the new mounts and torque to manufacturer specifications.

3. Check and Replace Driveshaft Components

• Sub-steps:
  1. Inspect the driveshaft and universal joints for movement and wear.
  2. If damaged, remove the driveshaft by unbolting it from the transmission and rear differential.
  3. Replace any worn universal joints or the entire driveshaft as required.
  4. Reinstall the driveshaft and torque bolts to proper specifications.

4. Transmission Fluid Change

• Sub-steps:
  1. Locate the transmission fluid pan and place a drain pan underneath.
  2. Remove the pan bolts using a socket set and allow fluid to drain completely.
  3. Replace the transmission filter if applicable.
  4. Reinstall the pan with a new gasket and torque bolts to manufacturer specifications.
  5. Refill the transmission with the appropriate type and amount of fluid.