Battery Replacement - Page 2 - Audi Forum - Audi Forums for the A4, S4, TT, A3, A6 and more!

May 16, 2012 | 10:46 PM

#11

Batman

Audi Forum - Posts like an A1

Joined: Oct 2010

Posts: 41

From: Lower mainland

Re: Battery Replacement

My battery bit the dust this morning. It was parked for two weeks and when I tried to start it - it wouldn't even turn over. I went the Costco and bought a replacement and it's all good now!

The only thing I didn't find was the drain/vent hose. One came with the new battery but one wasn't connected to the old battery - which an OEM battery. Is this hose necessary/important?

May 17, 2012 | 05:16 AM

#12

scancomputer

Audi Forum - Posts like an A1

Joined: May 2012

Posts: 6

From: Oslo, Norway

Re: Battery Replacement

Quote:

Originally Posted by Batman

I have a battery that has been installed in my 2001 C5 A6 since November 2005. A sticker on the battery indicates that it was manufactured in April 2005. I believe, but not sure, that it is an OEM (Bosch?) battery because it was installed at a dealer by the previous owner.

It still starts on one crank and I didn't drive the car - or even start it - for six weeks last winter (Dec-Feb) and it started on the first crank.

I hope to make it through the winter and replace next year sometime - as seven years for a battery is plenty long. What kind of life span do you think I can I expect from the battery?

I also changed into a Bosch battery, and after the change, the display in my instrument cluster just shows up intensily red and yellow.

I figured it had something to do with the firmware on the cluster, so I swapped the firmware into a newer one I found on a polish site.

Now my car is braindead and doesn´t show anything on the instrument panel.

Of course I forgot to make a backup of the original cluster so now I need another software, do you have the cables/software to make a copy of yours?

Sebastian, Oslo, Norway