Eppscobar2211

Hey guys I have a 2007 s550 and for about a week now I have no audio no navigation and no back up camera, I have checked the fuses and everything seems to be fine would you say it's the command unit?

Eppscobar2211

Hey guys could anybody possibly email me a copy of a fuse chart for a 2007 s550? Thanks in advance.

konigstiger

Check 122 @ rear SAM (141 is for camera) see attachments. If fine best bet is to have someone pull fault codes using MB DAS (diagnostics).

Eppscobar2211

thanks for the response and the diagrams, I check fuses 122 and 141 still nothing.

alx

Your head unit is gone. It is the common denominator for the nav/ radio/ backup camera. Once pulled out you can remove cover and check internal fuse. If fuse is good unit is bad. If fuse is good replace, but will probably burn again. New unit needs to be scn coded to car.

Eppscobar2211

Thank you, do you know under which cover the internal fuse is located?

alx

Headunit cover. It is held in place with few screws. Obviously you need to pull the unit out first.

Eppscobar2211

Ok thank you, yes I have the unit out I just didn't want to unscrew anything that didn't need to be opened.

Olsi Nasi

I’m having the same issue did that fix your issue?

Olsi Nasi

hey guys I’m having the same issue as Eppscobar2211. I have no stereo, no navigation, no back up camera on my 2009 s550. Basically I can control nothing my on command control unit beside just turn the ac off and on. Someone please help

zkhus

Hey I’m having the same issue now. How did you fix it?