Can you upgrade 2008 MB SL550 Command Unit for a modern receiver?

10

Asked by Dec 19, 2015 at 07:50 PM about the 2008 Mercedes-Benz SL-Class SL 550

Question type: Car Customization

I have 2008 MB SL550 and want to replace the command unit with a modern
receiver and also add a backup camera and retain all the steering wheel
functionality, etc.

Has anybody done this and what is the best option?

3 Answers

9,345

Do you plan to keep the car? If so, you will probably be better off replacing the entire unit with a new after-market such as Kenwood, Pioneer, etc. They come with Nav, HD Radio, Satellite and input connections for a camera. A newer unit will have much better resolution and more features. These units are available in 6 inch and 7 inch versions. That is probably better than what you currently have. Dash kits are available for all of these that will make your installation look factory. As for cameras - You would be surprised at how many good and low priced auto cameras are available on E-Bay. The most common type attach to your license plate and the wires run into the trunk to connect to your backup light. In my case, I replaced the COMMAND unit on my 2007 SL550 with the Kenwood. Very important - if you add a back-up camera, be careful on how you run the wire from the camera. The trunk opens BOTH ways, so you have to allow extra length.

3 of 3 people found this helpful.
Best Answer Mark helpful
10

Thank you. I plan to keep the car, it is pristine and has 30K miles on it. Which model of the Kenwood did you get? Will all the steering wheel functionality work (volume control), etc? So the back up camera does not have to wired to the receiver? You can simply wire it to the back up light? Did you get a shop to install it and how much should the package cost? Will any functionality be lost? Does it affect the MB diagnostics in anyway? Are there any cons? Is there any resale market for the removed Command unit?

1 of 1 people found this helpful.
9,345

Given that a replacement MB unit is $2500 - an upgrade is not a hard choice - and it will still have the limitations of the MB system.. The backup camera gets its power from the backup light turns on. However, you need to run a wire to the receiver in order for it to function (view on the screen). Doesn't affect MB diagnostics. There is usually a market for the removed units on Ebay - because these units fail all the time. There is an add-on module that will retain most all of the steering wheel functions. There is also a module to connect your new unit to the MB fiber optic system. You DO NOT need to rewire or replace speakers. As for total cost - depending on what receiver you get, fiber optic module and whatever else you decide - could be as low as $1k installed. But figure it will probably be closer to $1,500. Your local car audio shop will probably work a deal with you. I was surprised at how easy they made it look to do. DO NOT even consider MB for this job.

2 of 2 people found this helpful.

Your Answer

SL-Class

Looking for a Used SL-Class in your area?

CarGurus has 3,518 nationwide SL-Class listings starting at $4,500.

ZIP:

Mercedes-Benz SL-Class Experts

  • #1
    bobkat
    Reputation
    1,340
  • #2
    Michael Kane
    Reputation
    460
  • #2
    twhobie
    Reputation
    460
View All

Related Models For Sale

Used Mercedes-Benz S-Class
146 Great Deals out of 8,131 listings starting at $1,200
Used Chevrolet Corvette
160 Great Deals out of 17,404 listings starting at $3,000
Used Porsche 911
124 Great Deals out of 5,087 listings starting at $10,947
Used Mercedes-Benz E-Class
700 Great Deals out of 22,645 listings starting at $1,450
Used Mercedes-Benz SLK-Class
95 Great Deals out of 1,350 listings starting at $1,492
Used Mercedes-Benz CLS-Class
81 Great Deals out of 2,357 listings starting at $3,500
Used Mercedes-Benz CL-Class
17 Great Deals out of 512 listings starting at $5,500
Used Mercedes-Benz C-Class
893 Great Deals out of 28,327 listings starting at $2,001
Used BMW 6 Series
77 Great Deals out of 2,441 listings starting at $5,995
Used Mercedes-Benz CLK-Class
28 Great Deals out of 1,113 listings starting at $1,800
Used Porsche Boxster
49 Great Deals out of 1,283 listings starting at $5,232
Used BMW 7 Series
120 Great Deals out of 5,094 listings starting at $2,499
Used Jaguar XK-Series
39 Great Deals out of 641 listings starting at $4,000
Used Aston Martin V8 Vantage
155 listings starting at $37,988

Used Cars For Sale

2017 Mercedes-Benz SL-Class SL 550 For Sale
40 listings starting at $88,693
2016 Mercedes-Benz SL-Class SL 550 For Sale
40 listings starting at $66,999
2015 Mercedes-Benz SL-Class SL 550 For Sale
5 Great Deals out of 66 listings starting at $52,999
2014 Mercedes-Benz SL-Class SL 550 For Sale
5 Great Deals out of 213 listings starting at $43,995
2013 Mercedes-Benz SL-Class SL 550 For Sale
157 listings starting at $37,744

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.