how to fix transmission slipping issue in Volkswagen Golf MK7.5 (2020-Present)

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, transmission fluid pressure gauge, catch pan, funnel.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the battery to prevent electrical shorts.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick or fill plug.
  2. Remove the dipstick or fill plug and check the fluid level. If low, proceed to the next step.
  3. Place a catch pan under the transmission pan.
  4. Remove the transmission pan bolts using a socket set.
  5. Carefully lower the pan and allow old fluid to drain completely.
  6. Inspect the transmission filter and replace if necessary (if equipped).
  7. Clean the transmission pan and magnet, then reattach the pan with a new gasket.
  8. Refill the transmission with the correct type and amount of fluid (check owner's manual for specifications).

3. Inspect and Replace Components

• Sub-steps:
  1. Inspect the transmission control module (TCM) connections for corrosion or damage.
  2. Test the TCM using a multimeter to ensure it is functioning correctly.
  3. If necessary, replace the TCM with a compatible unit.
  4. Check for damaged or worn shift solenoids and replace if needed.
  5. Inspect wiring and connectors leading to the transmission for wear or damage.

4. Reconnect Battery and Conduct Final Checks

• Reconnect the battery and start the vehicle.
• Perform a final check of the transmission fluid level, adding more fluid if necessary.