Parasitic Battery Drain Fix (works great on B6 A4)
userzweig
July 3, 2015
Description:
When the passenger window of my 2004 Audi A4 B6 3.0 cabriolet got broken into (never park in a questionable neighborhood), the battery started draining (even after the window was replaced) and the car would not start if parked more than 20 hours or so. So I found this: WirthCo 20109 Battery Doctor Knife Switch for Top Post Batteries Amazon - $24.95, and it lets me use the car while I figure out where the #$%^&*battery drain is coming from, fits great on A4 B6 - the terminals are the right size, so it's just a #10 wrench on the battery post and a 1/2" for the Wirth. It bolts onto the battery post and it has the right sized nub for the black wire.
When the passenger window of my 2004 Audi A4 B6 3.0 cabriolet got broken into (never park in a questionable neighborhood), the battery started draining (even after the window was replaced) and the car would not start if parked more than 20 hours or so. So I found this: WirthCo 20109 Battery Doctor Knife Switch for Top Post Batteries Amazon - $24.95, and it lets me use the car while I figure out where the #$%^&*battery drain is coming from, fits great on A4 B6 - the terminals are the right size, so it's just a #10 wrench on the battery post and a 1/2" for the Wirth. It bolts onto the battery post and it has the right sized nub for the black wire.
