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

Solution

1. Preparation

• Gather the necessary tools and parts.
• Ensure the vehicle is on a level surface and secure it with jack stands if needed.
• Disconnect the battery to prevent any electrical issues during repair.

2. Change Transmission Fluid and Filter

• Tools Required: Socket set, torque wrench, transmission fluid pump, drain pan, funnel.
• Remove the transmission pan by loosening the bolts with a socket wrench.
• Allow the old fluid to drain completely into a drain pan.
• Replace the transmission filter as per the manufacturer's specifications.
• Reinstall the transmission pan, ensuring a new gasket is used, and torque the bolts to the specified value (check manufacturer specs for torque settings).
• Refill the transmission with the appropriate type of fluid as specified in the owner's manual using a funnel.

3. Repair or Replace Faulty Components

• If diagnostic steps indicated issues with wiring or the TCM:
  • Inspect and repair any damaged wiring or connectors.
  • If TCM is faulty, remove it from its mounting location and disconnect the electrical connectors.
  • Install a new TCM by connecting it to the wiring harness and securing it in place.

4. Reconnect Battery and Clear Codes

• Reconnect the battery.
• Use the OBD-II scanner to clear any stored fault codes from the system.
• Ensure that the system is reset and ready for testing.