There may come a time when you need to replace the windshield-washer tubing in your VW Jetta. In circulation since 1979, the Jetta has varied its wiper tubing style over the years, especially in the first decade. By properly installing a few items, you can be on the way to wiping away any precipitation or dirt that comes across your windshield.
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. Use parts number W0133-1630403 for VW Jetta cars dating from 1980 to 96. For cars produced after 1996, simply pick up washer tubing at the auto parts store. You don't need a parts number.
Locate the old washer tubing, which is near the blue-capped windshield-washer fluid reservoir. You can find this near the bottom left corner of the engine compartment.
Remove the 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 Jetta needs. Use a hose cutter to cut enough of the new tubing to fit your VW Jetta.
Place the new tubing in your Jetta. 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.
If the crack in your VW Jetta model's tubing is small, try patching it instead of replacing the tube. Cut away the torn tubing, and use a connector attachment to secure the new piece to the old, intact piece.
In 2007, the NHTSA issued a recall of the 2006 VW Jetta when it found the fuel line has a plastic tab near the windshield-washer fluid reservoir that may chafe against the fuel line. If you own this car, make sure it has been serviced for this recall before you change the tubing.