how to fix P0700 code in Volkswagen Golf Seventh Generation (2013-2020)

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Transmission Fluid Change

• Tools Required: Socket set, fluid pump, drain pan, new transmission fluid, new transmission filter.
• Remove the transmission fluid pan by unscrewing the bolts carefully.
• Allow the old fluid to drain completely into the drain pan.
• Replace the transmission filter by unbolting it and installing the new one.
• Reinstall the fluid pan with a new gasket, ensuring it is torqued to manufacturer specifications (typically around 8-10 Nm).
• Refill the transmission with the recommended fluid type (check the owner's manual for specifications).

3. TCM Inspection and Repair

• Tools Required: Multimeter, torque wrench, socket set.
• Reconnect the battery terminal.
• Inspect the TCM for any signs of damage or corrosion. If damaged, replace the TCM with an OEM part.
• Check the connectors; clean and secure any loose connections.
• Reinstall the TCM and ensure it is properly secured.

4. Clearing Codes and Testing

• Use the OBD-II scanner to clear the P0700 code and any related codes.
• Take the vehicle for a test drive to ensure the transmission is shifting smoothly and to verify the check engine light does not reappear.