CLS Coupe (C219) Discuss the CLS Coupe.

Battery red problem

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Old Nov 25, 2023 | 11:56 PM
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C63 2013 p30
Battery red problem

Hey guys I have an Cls 500 w219 2006
I am having problem with battery check i replaced voltage tensor and aux battery and principal battery and show me always battery check what to do ?
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Old Nov 26, 2023 | 04:34 AM
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if youve had a bad oil leak the alternator starts to want out, the voltage regulator isn't always the fix but I agree it usually is.
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Old Nov 26, 2023 | 12:19 PM
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It's very strange because when I turn on the ignition, the cigarette lighter works to

It's very strange because when I turn on the ignition, the cigarette lighter works to charge and so do the internal lights, but when I start it, the cigarette lighter and the internal lights stop working.
Originally Posted by ChrisHimself
if youve had a bad oil leak the alternator starts to want out, the voltage regulator isn't always the fix but I agree it usually is.
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Old Nov 30, 2023 | 05:53 AM
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Please scan it for faults! A decent computer can also show you what is happening (voltages, loading amperage, etc) for the main battery and also AUX battery

It can also be the AUX battery relay (it sits under the cowel), or something like bad earth/grounding or Battery Control Module (BCM) etc.

Last edited by nd-photo.nl; Nov 30, 2023 at 05:57 AM.
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Old Dec 8, 2023 | 12:20 PM
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This problem mostly get caused by the BCM (battery control module). They get oxidated and then this problem appears on the dash.
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Old Dec 14, 2023 | 05:56 AM
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That is more the case at W211 chassis, the location of BCM in a W211 chassis is prone to water ingress. At W219 chassis this is not the case.
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Old Sep 24, 2024 | 10:36 AM
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Originally Posted by nd-photo.nl
That is more the case at W211 chassis, the location of BCM in a W211 chassis is prone to water ingress. At W219 chassis this is not the case.
isn’t it located in the boot … behind the taillight on the right I think ..???
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