how to troubleshoot CVT issues in my Volkswagen Golf MK7.5 (2020-Present)

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is off.
• Gather necessary tools and parts.

2. Fluid Change

• Tools Required: Socket set, funnel, drain pan, new CVT fluid.
• Sub-steps:
  1. Locate the transmission drain plug and remove it to drain the old fluid into a drain pan.
  2. Replace the drain plug and tighten it to the manufacturer's torque specification.
  3. Remove the fill plug and use a funnel to add the new CVT fluid until it reaches the appropriate level.

3. Inspect and Replace CVT Belt (if necessary)

• Tools Required: Socket set, CVT belt replacement.
• Sub-steps:
  1. Remove any components obstructing access to the CVT assembly, such as the engine cover.
  2. Detach the CVT cover to expose the internal components.
  3. Inspect the CVT belt for wear; if damaged, carefully remove it.
  4. Install the new CVT belt, ensuring it is properly aligned and secured.

4. TCM Reset

• Tools Required: OBD-II scanner.
• Sub-steps:
  1. Connect the OBD-II scanner to the vehicle and access the transmission control module settings.
  2. Follow the prompts to reset the TCM and clear any error codes.
  3. Reconnect the battery and allow the vehicle to run for a few minutes to adapt the new settings.