why does my Volkswagen Golf MK7 (2015-2019) transmission slip when accelerating

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and set the parking brake.
• Disconnect the battery to prevent electrical issues.

2. Check and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, socket set, pan for fluid collection.
• Remove the transmission pan using a socket set.
• Drain the old fluid into a pan and inspect for metal shavings or debris.
• Replace the transmission filter.
• Reinstall the transmission pan and torque bolts to manufacturer specifications.
• Fill the transmission with new fluid as per the manufacturer's specifications (check the owner's manual for type and quantity).

3. Inspect and Replace Transmission Solenoids

• Tools Required: Torque wrench, socket set, multimeter.
• Access the transmission solenoids (may require removal of the transmission valve body).
• Use a multimeter to test each solenoid for proper resistance.
• Replace any faulty solenoids with OEM parts.
• Reassemble the valve body and torque to specifications.

4. Reprogram Transmission Control Module (If Applicable)

• Tools Required: OBD-II scanner with programming capabilities.
• Connect the OBD-II scanner to the vehicle's diagnostic port.
• Follow the scanner's instructions to reprogram the TCM if necessary.

5. Final Inspection

• Reconnect the battery.
• Start the vehicle and allow it to reach operating temperature.
• Check for leaks around the transmission pan and solenoids.