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Some x5s shifter lights do not go off. Use an amp meter to measure draw
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If a new battery goes dead within a couple days there is a decent sized draw... Any shop/tech with knowledge of BMW systems and BMW wiring schematics and a good quality inductive low amp clamp should be able to track down a draw, but sometimes they are a bitch to find... (it can take anywhere from 5 minutes to 5 days to find depending on what is causing it and if it is consistant)
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I just noticed the shifter light is still on. The little amber light where park is if that is what your talking about. If that is the problem is there anything I can do to get it to stay off with out taking it to a shop?
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For some reason on the E53's that amber light doesn't go off and in NOT indicative of a draw... it pretty much never goes off, ever. It would take an acurate way of measuring amperage down to the miliamp to track down a hidden draw.
However not all draws are hidden, lets say the ac blower fan seems to stay on low after you turn the key off, FSR.... Ok, so that's pretty much the only obvious draw that isn't harder to track down. |
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thats due to a software error in the GM3 processor. ive only seen pre-facelifted vehicles exhibit this phenomenon, the GM3RD does not have this issue. |
Ive noticed that the cooling fan in front of the radiator hasn't been coming on at all, would this be connected to the battery draining somehow? I was just searching the forums to see whats that all about and if there is any connection. When I go for a drive and then park I would leave the car on and step out to see if the fan is running and it never is.
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if the fan does not run, the check engine lamp should illuminate. on first starts the engine management sends an ON signal PWM to the aux fan, it then spins for a few seconds, and the engine management measures the amperage generated by the fan to determine if the fan is operational. usually a failed aux fan can draw up to 2 amps.
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So yeah jump started the car last night, I didn't use it but let the car run for about 10 mins and then shut the car off as I wasn't going out anyway just wanted to start it. I left it over night and I just go to start the car now and the battery is completely dead. Should I have let the car run longer last night to keeps its charge or that shouldn't have mattered. I took the battery out to trickle charge it as I type this.
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Got a call from my tech today and they found the telephone module was the culprit. Not covered under CPO, but it's being goodwilled. If the problem were to arise again, is there a way to just disconnect the module since I don't use it anyways?
Scott |
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