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Electrical system

BMW 325XI Electrical problems by year

4 complaints filed with NHTSA about the BMW 325XI's electrical system. Dead batteries, warning lights, wiring, alternators, infotainment and electronic module failures.

Electrical complaints by model year

YearElectrical complaintsCrashesInjuriesRecalls
20110001
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20014000

Electrical recalls

Latest 325XI electrical complaints

2001 BMW 325XIElectrical systemEngine & cooling

I think I know why the car catches on fire since mine almost did and I troubleshoot the problem. The alternator is not disconnected from the battery when the ignition key is turned off and the car is parked in the driveway. If the alternator ever overheats for any reason (such as the cooling vent comes loose), the pass transistor in the built in regulator of the alternator begins to short. Since it is never disconnected from the battery (even with the ignition key removed) the fist symptom appears to be a...

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bad battery as the alternator kills the battery. Especially if you replace the battery with a new, fresh one and continue to drive the car the pass transistor continues to short more and more (it charges the battery more and more leading to overcharging and possible fire) and eventually shorts so bad that even when turned off it draws so much current from the battery that it starts to catch fire. If at this point you don't happen to be there to disconnect the battery it becomes a cascaded failure and will become an engine fire. I know because this is exactly what happened to me. I was lucky enough to catch it and figured it out by measuring the resistance of the alternator and was shocked at how low it was. I replaced the alternator and everything has been fine since. I still have the old alternator if anyone wants to examine it. In my opinion the alternator should never be left connected to the battery with the ignition key off. I just don't see any reason for it. Sincerely, [[redacted]] information redacted pursuant to the freedom of information act (foia), 5 u.S.C. 552(B)(6). *Tr

Filed Incident Electrical system · EngineNHTSA 10984961
2001 BMW 325XIElectrical system

I was locked inside my car tonight. I entered my car through the unlocked driver's door. Other doors were locked. Started engine and left my driveway. Driver's door locked automatically. When I attempted to exit my car, the doors would not unlock. Door handle pulled as if disengaged to any mechanical connection other than return spring. I attempted to unlock doors with the center console switch to no avail. Turned off engine, removed key and attempted to unlock with fob to no avail. Attempted door pull on...

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other three doors with results the same as previously described. I returned home to my driveway, parked the car and attempted to open the doors from the inside of the car with no success. I attempted with the key in the ignition and engine running, engine off, key removed from ignition, etc. Every option was attempted. The only operational unlock mechanism was for the rear hatch glass, which became my exit by my crawling through the passenger compartment. I was trapped. The electrical system failed and interlocked the mechanical pull.

Filed Incident Electrical systemNHTSA 10959888
2001 BMW 325XIElectrical systemLights

Pin number 3 on the taillight bulb housing begins to melt at the connection point causing any number of things to happen with the electrical system. You may experience flickering headlights, loss of taillight function, loss of turn signal function, or electrical fire. *Tr

Filed Incident Electrical system · Exterior lightingNHTSA 10552625
2001 BMW 325XIElectrical systemLightsBrakes

My passenger brake light out of the blue started not working as I took it in the dealership they said a socket connector that involves the wires have been corrupted and burnt out. This is a serious hazard while out on the roads,i have seen many other post about that are having the same issues and im unaware of any recalls about this is issues. This is a issues that needs to have some attention. *Tr

Filed Incident Electrical system · Exterior lighting · Service brakesNHTSA 10533057

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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