R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

Updating my R-Class

Old May 31, 2022 | 10:29 AM
  #1  
tim gaffney's Avatar
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R350
Updating my R-Class

I had a perfect 2008 Silver/Black R with 78K mi, but it was totaled when a woman turned in front of my wife going 30 mph. I found this one in Texas and it needed work but it was the best one I could afford. The body was rough and it lived outside most of its life, but I am slowly trying to make it perfect

2011 81K \
Black / black tex
6 passenger - no center console
Add tow hitch
Aux plug in glove box .

I recently switched to 20" rims - thanks to threeMBs. I am in the process of updating the COMMAND with a 8G ram 128G radio. I have not sorted out the details yet: Anyone know:
  • How to connect the bluetooth - there are 2 blue wires on the new unit - not sure how to connect them
  • sirius raido - not sure where the antenna is
  • I cant seem to figure out What is the Green Fraka, Blue Fraka, and the yellow fraka, plugs.
  • Also not sure what to do about the brown fiberoptic cables with the red lights.
I love the R350 and I use it to tow my race cars - any help with the radio would be most welcomed
Tim





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Old May 31, 2022 | 10:50 AM
  #2  
tim gaffney's Avatar
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R350
wiring part 2


this is the 2nd part of the wiring diagram i got online
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Old May 31, 2022 | 12:44 PM
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Originally Posted by tim gaffney

Nice wheels!
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Old Jun 1, 2022 | 06:49 PM
  #4  
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From: Boston
2006 C280 4Matic
Originally Posted by tim gaffney
I had a perfect 2008 Silver/Black R with 78K mi, but it was totaled when a woman turned in front of my wife going 30 mph. I found this one in Texas and it needed work but it was the best one I could afford. The body was rough and it lived outside most of its life, but I am slowly trying to make it perfect

2011 81K \
Black / black tex
6 passenger - no center console
Add tow hitch
Aux plug in glove box .

I recently switched to 20" rims - thanks to threeMBs. I am in the process of updating the COMMAND with a 8G ram 128G radio. I have not sorted out the details yet: Anyone know:
  • How to connect the bluetooth - there are 2 blue wires on the new unit - not sure how to connect them
  • sirius raido - not sure where the antenna is
  • I cant seem to figure out What is the Green Fraka, Blue Fraka, and the yellow fraka, plugs.
  • Also not sure what to do about the brown fiberoptic cables with the red lights.
I love the R350 and I use it to tow my race cars - any help with the radio would be most welcomed
Tim




What brand are those wheels???
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Old Jun 2, 2022 | 08:58 PM
  #5  
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MERCEDES AMG GT, MERCEDES CLS63 AMG, MERCEDES G63 AMG, MERCEDES CL63 AMG
Originally Posted by tim gaffney
I had a perfect 2008 Silver/Black R with 78K mi, but it was totaled when a woman turned in front of my wife going 30 mph. I found this one in Texas and it needed work but it was the best one I could afford. The body was rough and it lived outside most of its life, but I am slowly trying to make it perfect

2011 81K \
Black / black tex
6 passenger - no center console
Add tow hitch
Aux plug in glove box .

I recently switched to 20" rims - thanks to threeMBs. I am in the process of updating the COMMAND with a 8G ram 128G radio. I have not sorted out the details yet: Anyone know:
  • How to connect the bluetooth - there are 2 blue wires on the new unit - not sure how to connect them
  • sirius raido - not sure where the antenna is
  • I cant seem to figure out What is the Green Fraka, Blue Fraka, and the yellow fraka, plugs.
  • Also not sure what to do about the brown fiberoptic cables with the red lights.
I love the R350 and I use it to tow my race cars - any help with the radio would be most welcomed
Tim




Hey tim nice R-class! Nice headunit too! Looks factory installed.
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Old Jun 4, 2022 | 12:57 AM
  #6  
Kevin T's Avatar
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From: Eagle River, Alaska
2018 Mercedes-Benz E400 4MATIC Wagon
Nice R Class!

My daughter has a 2008 R350 that she bought last winter. It's been a bit of a money pit, tbh, but with the used car market being what it is, at least it's a clean, comfortable, safe car with plenty of room.

One thing it needs is a reasonably priced modern head unit with Car Play (hopefully wireless) and which supports her rear view camera. The one you're installing looks great. Do you mind sharing more about it?
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Old Jun 4, 2022 | 03:13 PM
  #7  
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R350
https://a.aliexpress.com/_mKEOrAK
I bought the 8 GM ram, 128GB, it was $467, but I have seen it a bit cheaper.

I had to buy 2 more cables that connect the camera, the other was to connect the in car GPS.
Everything is working except I have not figured out the Sirius directly thru the radio. I can get it when i mirror the phone on the head unit.
It really is a big upgrade to the interior
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Old Jun 5, 2022 | 10:39 AM
  #8  
Kevin T's Avatar
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From: Eagle River, Alaska
2018 Mercedes-Benz E400 4MATIC Wagon
Originally Posted by tim gaffney
https://a.aliexpress.com/_mKEOrAK
I bought the 8 GM ram, 128GB, it was $467, but I have seen it a bit cheaper.

I had to buy 2 more cables that connect the camera, the other was to connect the in car GPS.
Everything is working except I have not figured out the Sirius directly thru the radio. I can get it when i mirror the phone on the head unit.
It really is a big upgrade to the interior
Hopefully it'll work well and be reliable, and be able to handle the heat/cold and vibrations of being mounted in your car. Please post your results to this thread once you have it working.

I had a negative experience on an Ali Express purchase once that makes me a bit nervous about purchasing through there, but hopefully everything works out great for you.
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