2003 w211
09-24-2017, 01:41 AM
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2003 w211 e320
2003 w211
I had a red battery service light come on along with a periodic functions temporary unavailable light. So I changed alternator, both batteries. Still same problem. What else can I do? Please help
09-24-2017, 03:47 PM
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Join Date: Jul 2003
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'71 Pinto
Next step, consider replacing battery control module (BCM). Definitive diagnose have someone pull fault codes – STAR: Control Units > Body > BCM- Battery Control Module > Fault Codes. See attachment for compatible part #s.
