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E21, E30General discussion and technical help for 1975-1991 3 series cars.
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Your Ride: 1994 BMW 525i, 1987 325is, 1986 325
Yup, battery first. Anything less than 12.45 volts and its most likely dead or to discharged to start the car. Two things, if it has juice get a WOODEN broomstick and have someone thump on the starter while you try to crank, occasionally this old redneck trick will get the solenoid to pop loose and work a bit longer. 2, make sure the battery light on the dash is functional (when in doubt just replace it, its less than 3 bucks for a two pack), if its not working the alternator will not get a signal and will not charge your battery, hence a potential reason your battery may be dead. Good Luck