how to fix P0700 code in BMW 5 Series F10/F11 (2010-2017)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the battery to prevent any electrical shorts.

2. Inspect and Replace Transmission Fluid

• Sub-steps:

  1. Locate the transmission fluid dipstick or fill plug (if applicable).
  2. Remove the dipstick or fill plug and check the fluid level.
  3. If the fluid is low, add the appropriate type of transmission fluid as specified in the owner’s manual.
  4. If the fluid is discolored or has a burnt smell, drain the old fluid from the transmission pan.
  5. Replace the fluid with new, manufacturer-recommended transmission fluid.

• Tools Required:

  • Socket set
  • Transmission fluid pump
  • Funnel

3. Inspect and Repair Wiring and Connectors

• Sub-steps:

  1. Visually inspect the wiring harness leading to the TCM and transmission solenoids for wear or damage.
  2. Disconnect any corroded or damaged connectors and replace them if necessary.
  3. Repair any damaged wires using heat-shrink tubing or soldering techniques.
  4. Reconnect all wiring and connectors securely.

• Tools Required:

  • Multimeter
  • Wire cutters/strippers
  • Soldering iron (if repairing wires)

4. Test and Replace Transmission Solenoids (if necessary)

• Sub-steps:

  1. Remove the transmission pan to access the solenoids.
  2. Disconnect the electrical connectors from the solenoids.
  3. Use a multimeter to test each solenoid for resistance and functionality.
  4. If any solenoids fail the test, replace them with new ones.
  5. Reinstall the transmission pan with a new gasket and torque to manufacturer specifications.

• Tools Required:

  • Socket set
  • Torque wrench
  • Gasket scraper

5. Reprogram or Replace TCM (if needed)

• Sub-steps:

  1. If diagnostic tests indicate a faulty TCM, remove the TCM from its mounting location.
  2. Install a new or refurbished TCM, ensuring it is compatible with the vehicle.
  3. Reconnect all wiring and connectors.
  4. Use a BMW-specific diagnostic tool to program the new TCM as per manufacturer instructions.

• Tools Required:

  • OBD-II scanner (with programming capability)
  • Socket set