How to Replace Windshield-Washer Tubing in a VW Passat

Determine if your windshield-washer tubing is clogged. Occasionally the little holes on the ball of the sprayer become clogged from washer fluid build-up or from hard water. You wouldn't need to replace the tubing if this is the case. Simply use a pin or sewing needle to poke a hole to eliminate any debris.

Purchase windshield-washer tubing from a car parts store. The tubing might also be referred to as vacuum tubing. For VW Passat model years 1990 to 1997, use part number W0133-1630403. For years preceding 1990 and any years after 1998, purchase windshield tubing without a specific parts number.

Locate the old tubing, which is near the windshield-washer fluid reservoir. You can find that near the bottom left corner of the engine compartment.

Remove the old tubing. Be careful around the vacuum connectors. Try not to break or disfigure them if you plan to reuse them.

Hold up the old windshield-washer tubing if you plan to replace the entire section. Place the new tubing next to the old, using the old as a guide to the length your Passat needs. Use a hose cutter to cut enough of the new tubing to fit your VW Passat.

Place the new tubing in your Passat. Use the old connectors, or insert the new ones, and ensure the tubing doesn't interfere with any other engine parts. When closing the hood, be extra cautious to make sure the tubing doesn't get bent.