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

Solution

1. Preparation

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

2. Transmission Fluid Change

1. Drain Fluid

   • Place a drain pan under the transmission.
   • Remove the transmission drain plug (if equipped) or remove the pan to drain fluid.
   • Allow the fluid to fully drain.

2. Replace Filter

   • If applicable, remove the transmission pan completely.
   • Replace the transmission filter, ensuring the old gasket is cleaned off.
   • Install a new gasket and reattach the pan, tightening bolts to manufacturer specifications (usually around 8-10 Nm).

3. Refill Fluid

   • Refill the transmission with the correct type and amount of fluid as specified in the owner’s manual (typically VW G 052 162 A2 for dual-clutch transmissions).
   • Start the engine and cycle through the gears to ensure fluid circulates properly.

3. Repair or Replace TCM

1. Inspect TCM

   • Remove the TCM from its mounting location.
   • Check for any visible damage or moisture ingress.

2. Replace TCM (if necessary)

   • Disconnect wiring harnesses from the TCM.
   • Install the new TCM and reconnect all harnesses.
   • Secure the TCM back in place.

4. Reconnect Battery

• Reconnect the negative battery terminal.
• Clear any diagnostic trouble codes with the OBD-II scanner.