With the heavy rains this season, some of you may have noticed a flood (no pun intended) of late 90’s, early 2000 Volkswagen Passat, Jetta, & Golf transmission problems. Be careful in your diagnosis! Many of these cars have problems beyond just the transmission.
Computer on passenger floorboard
The transmission computer is located in a recess on the passenger side floor board. The problem results from either a clogged sunroof vent or debris in the pollen filter on the firewall. This causes water to leak under the carpet, collecting in the recess holding the computer.
At Leon’s we have seen cars come in with the computers completely underwater. If you replace a computer, we recommend you drill 2 small holes in the floor to serve as a drain. Also, be sure to check the possible causes for continued water leaks and make sure the necessary repairs are made so your new computer does not suffer the same fate! Once the computer is replaced, you can continue with the transmission diagnosis. Or better yet, call your local Leon’s Transmission to come and check the vehicle at no charge… leaving you with more time to check other money-making jobs at your shop.
Debris in sunroof vent