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

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the vehicle's battery to prevent electrical shock.
• Raise the vehicle using a jack and secure it on jack stands.

2. Inspect Transmission Fluid

• Remove the transmission dipstick.
• Check fluid level; if low, add the appropriate type of transmission fluid (refer to the owner’s manual for specifications).
• If the fluid is dark or has a burnt smell, it may need to be replaced.

3. Replace Transmission Fluid (if needed)

• Drain the existing transmission fluid by removing the drain plug.
• Replace the transmission filter and gasket.
• Refill the transmission with new fluid, ensuring it matches the manufacturer's specifications.

4. Repair or Replace TCM

• If the TCM is faulty, remove the old module:
  • Take off any covers or components blocking access.
  • Disconnect the electrical connector and remove the mounting bolts.
• Install the new TCM:
  • Position the new module in place and secure it with bolts.
  • Reconnect the electrical connector.

5. Reconnect Battery and Test Drive

• Reconnect the battery terminals ensuring they are secure.
• Start the engine and check for any warning lights.
• Test drive the vehicle under various conditions to ensure proper shifting and performance.