Nick1994
$100 site donor 2024
Lately every once in a while I notice my car cranks a little bit slower than normal, especially if it sits for a day without being driven. It's got a dealer battery that's 22 months old. Dealer batteries are highly recommended for the TDIs because of the power it takes to start them. My commute is 50-55 miles round trip everyday and I took it for an extra 15 miles today on the highway and O'Reillys tested my battery and it said its a bad battery, and was 12.58 volts. Alternator test passed. It then cranked REALLY slow and wouldn't start and I had to jump start it.
This morning on the freeway the airbag light came on on the dash along with the fasten seatbelt light and chime and wouldn't go off unless I fastened the passenger seatbelt (nothing on the seat or anybody riding with me). Connections look good under the seat and after turning the car off and back on the fasten seatbelt light works perfect. Airbag light is still on and won't go off. It has the side airbags in the seats and heated leather seats if that makes a difference.
I'm thinking this might have to do with the bad battery. About 5 years ago it did this same thing and it was some kind of seat belt sensor, so maybe that's it.
I'm taking it to the dealer tomorrow for a new battery and am hopeful the airbag light goes off.
So is it possible for a bad battery to do weird stuff like this to the car's electrical?
This morning on the freeway the airbag light came on on the dash along with the fasten seatbelt light and chime and wouldn't go off unless I fastened the passenger seatbelt (nothing on the seat or anybody riding with me). Connections look good under the seat and after turning the car off and back on the fasten seatbelt light works perfect. Airbag light is still on and won't go off. It has the side airbags in the seats and heated leather seats if that makes a difference.
I'm thinking this might have to do with the bad battery. About 5 years ago it did this same thing and it was some kind of seat belt sensor, so maybe that's it.
I'm taking it to the dealer tomorrow for a new battery and am hopeful the airbag light goes off.
So is it possible for a bad battery to do weird stuff like this to the car's electrical?