how to fix P0700 transmission code in my Volkswagen Golf MK7 (2015-2019)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is on a level surface and secure with wheel chocks.

2. Inspect and Replace Transmission Fluid (if necessary)

• Tools Required: Socket set, fluid pump, transmission fluid.
• Remove the transmission fluid pan using a socket set.
• Drain the old fluid and inspect for metal shavings or debris.
• Clean the pan thoroughly and replace the filter if applicable.
• Refill with the manufacturer-recommended transmission fluid (typically VW G 055 162 A2).
• Reinstall the pan and torque the bolts to the manufacturer's specifications.

3. Repair or Replace TCM

• Tools Required: Socket set, multimeter.
• If the TCM is found faulty, carefully detach it from its mounting location.
• Disconnect the wiring harness from the TCM.
• Install the new TCM by reversing the disassembly steps and ensuring all connections are secure.
• Reconnect the negative battery terminal.

4. Clear Codes and Test Drive

• Use the OBD-II scanner to clear the P0700 code.
• Test drive the vehicle to ensure proper shifting and performance.