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

9,575

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.
9,575

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 3,359 nationwide SL-Class listings starting at $3,995.

ZIP:

Mercedes-Benz SL-Class Experts

  • #1
    bobkat
    Reputation
    1,350
  • #2
    Michael Kane
    Reputation
    480
  • #3
    twhobie
    Reputation
    460
View All

Related Models For Sale

Used Mercedes-Benz S-Class
117 Great Deals out of 7,495 listings starting at $1,200
Used Chevrolet Corvette
113 Great Deals out of 16,308 listings starting at $3,995
Used Mercedes-Benz E-Class
511 Great Deals out of 21,795 listings starting at $1,999
Used Porsche 911
123 Great Deals out of 5,277 listings starting at $10,099
Used Mercedes-Benz SLK-Class
45 Great Deals out of 1,355 listings starting at $1,492
Used Mercedes-Benz CLS-Class
70 Great Deals out of 2,215 listings starting at $6,465
Used Mercedes-Benz CLK-Class
25 Great Deals out of 1,177 listings starting at $2,995
Used Mercedes-Benz C-Class
750 Great Deals out of 26,239 listings starting at $1,995
Used Mercedes-Benz CL-Class
21 Great Deals out of 523 listings starting at $3,980
Used BMW 6 Series
68 Great Deals out of 2,450 listings starting at $5,995
Used Maserati GranTurismo
12 Great Deals out of 1,190 listings starting at $27,022
Used Porsche Boxster
42 Great Deals out of 1,266 listings starting at $4,995
Used Mercedes-Benz G-Class
4 Great Deals out of 1,117 listings starting at $26,482
Used BMW 7 Series
113 Great Deals out of 5,246 listings starting at $3,950

Used Cars For Sale

2017 Mercedes-Benz SL-Class SL 550 For Sale
27 listings starting at $82,978
2016 Mercedes-Benz SL-Class SL 550 For Sale
3 Great Deals out of 48 listings starting at $61,877
2015 Mercedes-Benz SL-Class SL 550 For Sale
87 listings starting at $49,999
2014 Mercedes-Benz SL-Class SL 550 For Sale
172 listings starting at $37,000
2013 Mercedes-Benz SL-Class SL 550 For Sale
136 listings starting at $34,995

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.