Flat Battery

[gazza1971]

Went to use the car Saturday the battery was flat jump leads it started no problem used it all day no problems .The wife went to open it last night the remote locking wouldn't work opened with key alarm went off only one door opened I came home from work its the same battery is flat even with jump leads on it does nothing .Going to replace the battery today will this be the cure guys seems like its got no power at all even with jump leads it would not turn over no remote unlock central locking aint working went to start it the factory alarm is going of the indicators flashing like its immobilised its a 2.0 16v coupe .

[John.]

Originally Posted by gazza1971

Went to use the car Saturday the battery was flat jump leads it started no problem used it all day no problems .The wife went to open it last night the remote locking wouldn't work opened with key alarm went off only one door opened I came home from work its the same battery is flat even with jump leads on it does nothing .Going to replace the battery today will this be the cure guys seems like its got no power at all even with jump leads it would not turn over no remote unlock central locking aint working went to start it the factory alarm is going of the indicators flashing like its immobilised its a 2.0 16v coupe .

Best case(read cheepest!) scenario is that it's the battery. If the battery is really goosed, don't expect to throw a cheep set of jump leads at it and expect it to fire up instantly?
If you have a drain on the battery (ie fault with vehicle electrics) this would need checking with a meter.
Charging fault would mean it might charge sufficiently to run the car but not to start it......best case here would be earth strap, and this would also cause poor starting/cranking.
If you attached jump leads to battery and it didn't want to turn over and then you removed the NEGATIVE jump lead from the battery negative and attached it to the metalwork of the engine.......and it started, then doing it this way would be bypassing the engine earth strap and suggest there may be a problem here?

You say you're going to replace the battery, get it tested first as the money you'll save not buying one might need to go towards an alternator!!(worst case scenario)

Hopefully just a goosed battery though.

Let us know.

[gazza1971]

Thanks for the reply the battery looks old euro car parts £32 for a new one 3 year warranty .I will let you know later after work when I have fitted it thanks again .

[John.]

Originally Posted by gazza1971

Thanks for the reply the battery looks old euro car parts £32 for a new one 3 year warranty .I will let you know later after work when I have fitted it thanks again .

Personally I'd avoid their Lion ones.......

[leggy]

Originally Posted by John.

Personally I'd avoid their Lion ones.......

Ditto that John

[gazza1971]

Bought a Bosch one hopefully will sort it out when I finish work later

[gazza1971]

Fitted the new battery central locking not working alarm going off when you open with the key and will not turn over as if its immobilised any ideas ?


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[John.]

Maybe alarm/immobiliser out of sync.
I'll bet there's a thread somewhere on this....
Maybe try putting the driver's window down, then lock the car and reach in, put key in ign and see if it'll start then.
My car doesn't have factory immobiliser so not overly familiar with B4 setup.

[gazza1971]

Googled it left the battery disconnected for 30 mins and bingo all sorted phew panic over.


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[John.]

http://www.classic-audi.co.uk/forum/...ht=immobiliser

Above thread was what I had in my head regards previous topics........