how to troubleshoot the automatic transmission on my Volkswagen Tiguan First Generation (2007-2018)

Solution

1. Preparation

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

2. Fluid Change

1. Drain Transmission Fluid

   • Place a pan under the transmission pan to catch fluid.
   • Remove the transmission pan bolts using a socket set.
   • Carefully lower the pan and drain the fluid completely.

2. Replace Transmission Filter

   • Remove the old transmission filter, noting its orientation.
   • Install the new transmission filter, ensuring it is seated properly.

3. Clean Transmission Pan

   • Clean the transmission pan with a suitable solvent to remove old gasket material.
   • Inspect the magnet in the pan for metal shavings.

4. Reinstall Transmission Pan

   • Place a new gasket on the pan and reinstall it.
   • Torque the pan bolts to the manufacturer’s specifications (typically around 8-10 Nm).

5. Refill Transmission Fluid

   • Use a funnel to refill the transmission with the recommended fluid type (consult owner’s manual for specifications).
   • Start the engine and run through the gears with the brake applied to circulate the fluid.
   • Check the fluid level using the dipstick and add fluid as necessary.

3. Solenoid Replacement (if necessary)

1. Remove Transmission Control Module

   • Disconnect the battery and remove the transmission control module.
   • Unplug the electrical connectors and remove any mounting bolts.

2. Access and Replace Solenoids

   • Remove the transmission valve body (may require removing additional components).
   • Replace faulty solenoids with new parts, ensuring proper orientation.
   • Reassemble the valve body and reinstall the control module.