Aight, just to get it out there, I’m a youth minister, and NOT a car dude, so pardon my technical jargon like “thingy” and “doodad”.
Bought a used Passat with 60k miles on it for my wife to use as a commuter car. Great vehicle, but if it wasn’t driven for a few days, the battery would be dead. Put a new battery in, but after a while, same thing. Put another battery in, same thing. The battery tests “good”, but something is, apparently, steadily and slowly leeching the charge.
Started pulling fuses to try and narrow down the culprit of the drain problem: alarm system, electronic locks, stereo… nothing makes a difference.
Took it to my local mechanic, a personal friend, but after trying all his tricks, he can’t figure it out either.
Took it to a VW dealer where an acquaintance works in the service department. He checks it out thoroughly, keeps it overnight, but can find no evidence of a drain on the battery, which still tests out as good. I set up with him to drop the car off for a week straight. Unfortunately, he is not on duty when I drop it off, and another tech writes the work order up, seemingly uninterested in the history I’m trying to tell him. He calls a few hours later to tell me that they put an authentic Volkswagen battery in the car and it’s working fine. I tell him that the car always works fine with a charged battery, but his head seems to be too far up his tailpipe to hear me. I pick up the car and take it home, and sure enough, my drain issue seems resolved; after 3 days of sitting parked, it still starts just fine.
Then we return from a 9-day mission trip, two months after the new VW battery transplant. The car is currently SO dead that I cannot open the driver’s side door with the key. I can climb into the trunk, but I can’t release the rear fold-down seats from the trunk, so looks like a $40 locksmith charge is in my future.
So short of throwing myself upon the tender mercies of the VW corporation and begging for a replacement car (ROFL), does anyone have any ideas? Besides, that is, pummeling the VW service tech with a set of jumper cables? (Wow, I didn’t even have to use any technical jargon!)