clsjack

My phone and voice control mic has stopped working in my Cls55amg.
Since my inside mirror was just replace ( which I assume had new mics
included inside the mirror ), I was looking for a VCM on e-bay.

According to All-data, my VCM is on the far right of the trunk and has one
plug. I noticed some of the units listed on e-bay as VCMs have 2 plugs.

Anybody know if the 2 plug units are really VCMs or UHI modules ?
My unit has the # A211 820 43 85.

TIA,
Jack

Diesel Benz

That isn't your VCM. Are you sure the rear view mirror was the correct part with a correct number of microphones? Do you have the part number available (preferably with your car VIN)?

clsjack

the part # for the mirror was 211 810 23 17 9B51.

My Vin # is WDDDJ76X36A049701.

After the mirror was replaced, my voice control worked for a couple of months. I just noticed lately that I had no mic when making a tel. call and then noticed no voice control thru the stalk.

Would the above mirror contain new internals such as the mics and garage door opener controls ?

Thanks
Jack

clsjack

Is this the VCM ?
What the heck is the small metal box on top ?

Diesel Benz

It is the correct rear-view mirror for your car. It does come with the microphones (obviously if it worked for some time) and the garage door control.

Why do you feel the VCM got broken suddenly, why not the connector at the rear-view mirror since that part of the car has been dismantled.

clsjack

Actually, I did remove the mirror and overhead console and didn't find anything unplugged.
Even though I hate the thought of going thru the contortions needed to work on that part of the car I guess I'll re-check it.

Thanks again

Diesel Benz

The small box is N96, frequency switch-over control module.

N41/3 is your voice control module, the one below the small box.