how to fix P0750 code in Volkswagen Passat B8 (2015-2022)

Learn how to diagnose and fix P0750 transmission shift solenoid issue in Volkswagen Passat B8 (2015-2022). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather the necessary tools and parts.
• Disconnect the battery to prevent any electrical shorts.
• Ensure the vehicle is on a level surface and use jack stands if needed.

2. Remove Transmission Pan

• Tools Required: Socket set, torque wrench, gasket scraper.
• Remove the bolts securing the transmission pan using a socket.
• Carefully lower the pan and drain the fluid into a suitable container.
• Clean the mating surfaces on both the pan and transmission case.

3. Replace Shift Solenoid

• Locate the shift solenoid "A" (refer to the vehicle service manual for the exact location).
• Disconnect the electrical connector from the solenoid.
• Remove the solenoid retaining bolt(s) and carefully pull the solenoid out of its bore.
• Install the new solenoid by reversing the removal steps, ensuring it is seated properly.

4. Reassemble Transmission Pan

• Apply a new gasket or sealant to the transmission pan.
• Reattach the transmission pan and torque the bolts to the manufacturer's specifications (typically around 8-10 Nm).
• Refill the transmission fluid with the correct type as specified in the owner's manual.

5. Reconnect Battery and Test

• Reconnect the battery terminals.
• Start the engine and allow it to reach operating temperature.
• Check for leaks around the transmission pan and observe the fluid level again, adding more if necessary.