my BMW 5 Series won't shift into gear what should I do

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is off.
• Gather tools including a socket set, torque wrench, and transmission fluid.

2. Check and Top Off Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick or fill plug.
  2. Remove the dipstick or fill plug and check fluid level; add the recommended transmission fluid if low.
  3. Inspect the fluid for contamination or burnt smell; if contaminated, proceed to fluid change.

3. Inspect Transmission Linkage

• Sub-steps:
  1. Locate the transmission linkage under the vehicle.
  2. Visually inspect for any signs of wear, damage, or disconnection.
  3. If damaged, replace the linkage using appropriate parts.

4. Check and Replace Transmission Control Module (if necessary)

• Sub-steps:
  1. Disconnect the battery to ensure safety.
  2. Locate the transmission control module (usually near the transmission).
  3. Disconnect the wiring harness and remove the module.
  4. Install a new module and reconnect the wiring harness.
  5. Reconnect the battery.

5. Fluid Change (if necessary)

• Sub-steps:
  1. Raise the vehicle using a jack and secure it with jack stands.
  2. Locate the transmission drain plug and remove it to drain old fluid into a container.
  3. Replace the drain plug with a new gasket, and torque to manufacturer specifications.
  4. Fill with new transmission fluid through the fill plug until the correct level is achieved.