Strange Charging problem
#1
Junior Member
Thread Starter
Strange Charging problem
08 E320. New to Mercedes, but not wrenching. The car doesnt charge, but if you disconnect the battery and hook it back up it will charge for a while, then stop again and battery voltage will drop till things start turning off. Disconnect the battery, jump start it and it will be charging at 14v again. battery is AGM and less than a year old, alternator replaced twice. What am I missing?
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#11
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Join Date: Aug 2005
Location: Sarasota, Florida
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16 E550 Cab, 2003 Ram bright red crewcab 4x4 we call Clifford :)
sounds like your left with questionable battery ? if you really want to confirm you could put a temp battery in there or borrow a known good one if you have another car.... rig a multimeter inside or under the wiper to watch it real time.... just tossing stuff out there....
#12
Junior Member
Thread Starter
My thought right now is either the DME or imoilizer is not energizing the exciter circuit after the car has been turned off (possibly with setting the alarm).
Wiring diagrams would help.
Wiring diagrams would help.
#13
Junior Member
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#14
Junior Member
Thread Starter
sounds like your left with questionable battery ? if you really want to confirm you could put a temp battery in there or borrow a known good one if you have another car.... rig a multimeter inside or under the wiper to watch it real time.... just tossing stuff out there....