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battery advice

Posted: Wed Jan 16, 2013 12:18 pm
by Irish_chris
ok so the battery in my e21 is pretty flat so i took the brand new battery i had in my e30 and tried to turn the car over and the starter just 'clicked'

is this the battery's fault?

Re: battery advice

Posted: Wed Jan 16, 2013 12:41 pm
by johne21
check for bad earths

Re: battery advice

Posted: Wed Jan 16, 2013 3:48 pm
by Jeroen
Bad ground cables in the engine bay indeed, engine to chassis on intake side and I believe head to firewall exhaust side. Also, do a turning session, you'll get used to that being an E21 owner: corroded contacts may cause fuses to fail or at least no let through enough current. Give your fuses a few turns to clean up, check relays. In the end, it could be bad wiring to the starter but I'd check in this order...