Birchall
Dick Chown Award 2016
Hi Martin.
My car is a 1.4 petrol. Dont know if that makes a difference . When i got the new battery all was good for 3-4 days then it was flat , no dash lights , central locking ect. ???
Local garage has checked the for the usual drain problems but cant find the source.
Is it worth buying a used CCU unit and swap them over ....
Cheers
Sent from my SM-G900F using Tapatalk
Are you sure that the alarm is not being triggered overnight. A failing CCCU and / or a service flap that is not fully closed can result in the "very quiet" alarm running all night.
The other trick is to disconnect the positive lead from the battery and then touch it back on looking for a very small spark (do it in a well ventilated room with no fuel fumes!!!)
It should only be a very small spark, anything more and you have something draining it. Most common tends to be an aftermarket radio, or a failed alternator (they can become the equivalent of a motor if the diode fails)
Steve B