With the 10-12 degree weather in Texas this weekend, the original battery finally demanded retirement. So it was off to Autozone for a Duralast Platinum series H8 to replace the main battery. Of course, the auxiliary battery seems to only be available from the dealer, so I was hoping replacing the main would cover me for a day until I could get to the dealer. Install went pretty smooth and I had no difficulty coding the new battery to the car since it was the same amperage. Well, I got three starts and quick trips without any trouble with the new main battery, the last being to work this morning. When I tried to go out to lunch, the vehicle was completely dead - couldn't even get in the doors. Arranged for a tow truck and I used "the key" to open the driver's door, the driver was able to jump start the vehicle!


So I was able to drive it to the dealer for inspection which was good. If they come in dead, the diagnosis fee is $120 more because they have to manually get it out of park. I told them to replace the auxiliary battery first, then diagnose the battery circuits. Hopefully everything checks out okay.

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2016 F15 x35i
2014 F32 428i


2004 E46 325i sold at 123,600 miles
2002 E53 3.0 sold at 388,801 miles
2001 E46 325i sold at 66,000 miles


1970 Firebird Under restoration