WTB W 221 870 38 87
Thread Starter
Super Member
Joined: Aug 2010
Posts: 986
Likes: 6
From: Kingsville Ontario (South of Detroit)
2003 S500 4Matic (SOLD) + 2004 S55 (SOLD) 2005 CLK 500 Cabriolet 2008 S 450
WTB W 221 870 38 87
This is the cellular module for a W 221. I can call, receive and send but they can't hear me. My Indie diagnoses the module after replacing the mirror and the microphone in the OHC. All help gratefully accepted.
MBWorld Fanatic!
Joined: Nov 2001
Posts: 1,148
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From: Berkshire, UK
2004 SL55, 2015 A250d, 2016 GLC250d
That is actually the voice recognition module. But that makes sense since the microphones connect to it. (if you don't have VR then they connect to the phone module)
Richard
Richard
Thread Starter
Super Member
Joined: Aug 2010
Posts: 986
Likes: 6
From: Kingsville Ontario (South of Detroit)
2003 S500 4Matic (SOLD) + 2004 S55 (SOLD) 2005 CLK 500 Cabriolet 2008 S 450
I have VR, When we pulled the left trunk cover we found that someone previously had disconnected the 2 speaker wires from the module and wired them together, ergo, no microphone but a continual loop oin the MOST (Optic ring). This discovery, after replacing the mirror (2 Microphones) and the microphone in the Overhead Compartment led us to believe the culprit part was the module numbered above.
