Question about 2005 Volkswagen Jetta
Does it have heated seats? If so maybe they aren't turning off when the ignition is off. In that case, pull out the fuse for heated seats when you shut the car off. The inside of the fuse panel cover will have a diagram showing which fuse it is, likely a 15a. I'm not 100% positive on how to permanently remedy that particular problem beyond just pulling the fuse, it could however be a rather simple problem with the on/off switch not releasing the contacts when you move it to the off position.
Does it also have powered seats and/or power windows? It is also possible that either of the two are not shutting down the motor (window or seat motor) when the window or seat reaches the end of it's travel...this of course is not applicable if you don't have either thing all the way up, down or the seat all the way in one direction. The buttons can be stuck in one position and still activating power to the window or seat while they are at the end of it's travel and it would be rather obscure, both are devices that can still operate with the ignition off. In order to know for sure, after you shut off your car, sit quietly and listen carefully for anything that sounds like it is still running. It may sound like a high pitch whine or hum.
I would otherwise suggest that either your exterior or interior lights may still be running, but those things are a bit more obvious and aren't really enough draw on power, even with HID lights, to drain a battery overnight that was good enough to pass an electrical test. The same would apply to a security system.
Posted on Nov 11, 2010
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Posted on Jan 02, 2017
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