I am getting an intermittent buzz in the car,'97 E320. It will occur with the key in the on position and nothing else on, or with the engine and everything running. Any ideas on the scource? Ed

The warning module can go south and do such things. I'd have this checked by a tech soon.

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Benzmac:
Donnie Drummonds
300E
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM
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Thank you for the response. It is still under warranty, I'll take it in tomorrow. Ed

Can someone please tell me where the OVP relay is located on a 1997 E320 straight six? The battery is located under the back seat. thanks

ja

Ed, cell phones can cause an odd buzz in the radio speakers, but it's normally random and infrequent.

That chassis does not have OVP....124/E320 had them.

Is there any protection against overvoltage on W210? Thanks!

Thanks TexHoldem for following up on this. Mr. Dalton if there is no OVP relay what means does the MB use to manage over voltage. Thanks

JA