julrick001

I have a 2013 Sl550 ... all of a sudden no on can hear me on phone calls. I then realized voice command also not working. When I select the speak button on the stirring wheel, voice command comes up as it should, but its not hearing me and eventually "cancels". Is there a fuse that can be checked? I've already booted the command system to no avail.

Any ideas would be greatly appreciated. Thanks in advance!

DCF

I notice I have the same problem with a 2013 SL 63. Were you able to resolve the issue? Anybody else have an idea?

Thanks,

Bay Leaf

Try removing the negative battery lead for 10/15 mins and see if that has re set it.

julrick001

Unfortunately, no. I've solved a number of issues from suggestions on this forum, but this one seems to not have been solved in the past by folks in the forum. I'll try the battery disconnect suggested by Bay Leaf, though I'm not optimistic that it will help as it's not a setting issue that needs to be reset per se. I'll post the results when done.

Bay Leaf

Yes give it a try my friend, you've nothing to loose .

julrick001

Does it matter which battery?

julrick001

Disconnected both batteries.... no luck.. ugh....

julrick001

Update on Microphone not working with voice command or phone:

Ran diagnostic in engineering menu. Both Microphone 1 and Microphone 2 show Fault: Microphone Circuit open error. Codes 94B7 and 94B8 (Mic 1 and 2) Still researching to determine next troubleshooting step. Can't seem to find fuse chart, or determine where voice/microphone control module is located.

crconsulting

Ever have any electrical work or interior work done on that car? Radar detector install, dash repairs, things like that.
(no fuse btw)
this issue may also be related:
https://mbworld.org/forums/e-class-w...y-hear-me.html

julrick001

No, I haven't had any electric work or work of any kind done on the car. Everything else on the car works flawlessly. Bought the car in 2020 with 9K miles on it... has 22K now. This is the only issue I've had with it.

crconsulting

Yeah, thats a bummer...
Have look at those links and attached XENTRY "tips".
Not much consolation.

crconsulting

Forgot I had this. (don't pay attention to the car pictured. It's R231 part number)
I would look at the radio fuses just in case.
See attachment:

paw777

Hi! Ever get this sorted? Thank you

julrick001

I took it to Mercedes and they reset the system and now works....so have no idea what was really wrong with it..... sorry....

sacho1979

module is under driver’s seat