Battery Drain

[Vince123]

Hi,please bear with me ,I'm a newbie!!

Ok here goes,I've a c3 pluriel,drives a1,but when I switch engine off after a few minutes all lights come on on dash and drain the battery?any help would be appreciated,also there's a buzzing coming from fuse box area,don't know if it's related,vince

[paul.h]

Welcome to the forum.

 

You could try a battery disconnection, wait a few minutes and then reconnection. It may not help but is worth a try. The buzzing could be a relay that is sticking on but it may not be a replaceable item, or something is switching the relay such as a faulty ignition switch.

 

20. Odd electrical problems caused by wrong battery disconnection procedure.

If you need to disconnect the battery and not do a BSI reset procedure, I have found the following has not given me any problems on a 2004 and 2007 C5 and a 2003 C3:

- remove the ignition key from the car

- open the bonnet

- wait a few minutes for the BSI to shut down

- disconnect the battery negative terminal

 

When reconnecting

- ignition key out of the car

- reconnect the battery

- wait a few minutes

- insert the key in the ignition and wait a minute

- turn the key to the first position and wait a minute

- turn the key so the dash lights come on and wait a minute

- start the engine

- take the windows down and up to reset the anti pinch

- reset the clock (and radio on the C3).