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Greg
Greg, Technician
Category: Mercedes
Satisfied Customers: 7060
Experience:  Automotive diagnostic tech
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270 E classic part turn on ignition - no malfunction - turn

Customer Question

270 E classic part turn on ignition - no malfunction - turn full on - shows a red battery warning - intermittent - take to workshop - battery getting 14V from alternator
Submitted: 1 year ago.
Category: Mercedes
Expert:  Shantal-Mod replied 1 year ago.
Hello,
I'm Shantal and I'm a moderator for this topic.
I've been working hard to find a Professional to assist you with your question, but sometimes finding the right Professional can take a little longer than expected.
I was checking to see if you had already found your answer or if you still need assistance from one of the Professionals.
Please let me know if you wish to continue waiting or if you would like for us to close your question?
Thank you,
Shantal
Expert:  Greg replied 1 year ago.
Hi .
Sorry that its taken so long for one of us to answer .
Have the workshop check for malfunction codes , as this system also runs thought the ECM .
Also have the battery tested seen one cell fail and cause the battery light to come on so don't mark out the possibility of a bad battery .
In some cases the wire from the Alternator to the ECM is known to fail .
Also if you can not get code checked and the small battery , the sbc/auxiliary battery, if this is still the original replace this first and check all the wiring harness for possible damage .
sbc/auxillary battery
Expert:  Greg replied 1 year ago.
Just checking in to see if you still need assistance with this issue . Kind regards Greg

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