Sunroof / Moonroof Drain: Service and Repair

Sunroof Drains, Cleaning

Special tools, testers and auxiliary items required

• Cleaning and installing support (VAS 6620)






Perform the following:

- Open the sunroof.

- Make sure the sunroof drain holes - arrows - are not blocked with dirt. Clean them if necessary.






- Using tap water, pour water through the sunroof drains making sure the same amount of water is coming out of the wheel housing.

If this is happening, then the check is completed. If only a little water is coming out, or no water at all, then perform the following:

- Remove the plenum chamber cover: Refer to => Body Exterior 64 Removal and Installation

• Removing and installing the plenum chamber is charged separately.

- Open the latches - A and B - and remove the cover - 1 -.






- Move the cleaning and removing tool (VAS 6620) back and forth up to the drain valves and push out any dirt.






- The drains - arrows - are located on the left and right sides of the plenum chamber.






- Make sure the plenum chamber drains - arrows - are not blocked with dirt. Clean them if necessary.






- Using tap water, pour water through the sunroof drain holes one more time.

Installation is the reverse of removal.