Maj. Dundee

Here is the wiring diagram and legend for the rear SAM.

Also, what the IC controls.

ML350BTC

dear Maj. Dundee,
I retrofitted camera with motorised flap which needs an additional ECU (N42) but my car doesn’t have one.
But according to some people, it would be possible to control camera flap with rear SAM.
As I am beginner and not specialised in electric ,I don’t know how and where to connect the camera flap electrical wiring on rear SAM.
could you please help?
Thank you very much!
regards

Maj. Dundee

I have no idea what N42 is and where it is located.

M/B does not provide instructions for retrofitting back-up camera but there are expensive modules that must be installed (read.W164 pdf)

AK_R350

Hi Maj. Dundee,
I read all your suggestions and would like to thank you for all detailed information and advices.
if you have a good used Rear SAM A1649005401, please let me know. I have the same problems on my 2011 R350 Bluetec.
Thank you in advance.

Maj. Dundee

Sorry, but I do not have a spare SAM in any part #.

AK_R350

Thank you very much for your reply.
I’ll try to find a used one on eBay.
Do you have any suggestions for a scanner that will be able to program the Rear Sam.
I’m thinking to buy a iCarsoft.
Which models and brands do you suggest to consider?
Thank you.

eldos1

Hello All,
I have a 08' ML63 with rear SAM 164.540.96.62 . I have been looking at the general install videos, posts and the Mercedes TB that says you must swap 164.540.78.45 and 164.540.88.45. 1St question: Do I still need to find the 164.540.11.01 SAM or is mine/or other versions compatible? I have hitch and arms, but still need to get the two wire harness ordered.

scourchaine

I have had to replace mine 3 times on my 2006 ML500 #1645408945. First it got wet from leaking tail lights gasket (there is a special thick gasket from MB from a TB for this issue). Second it got wet again from leaking rubber boot at the automatic tail gate in upper right corner. I replaced with #1645409162. Third one of the used SAM's I purchased must have gotten wet before me. I purchased all 3 used for between $160 and $275 each. None of these 3 were exact part numbers to my original part #, I believe the latest mb part is now #1649005401. You need to make sure that the SAM has all the hardware for the trailer lights, the internal electronics board can be different. The options to consider are: auto tailgate, power rear side windows, tow package, rear camera, parking sensors it has to have all . There are a couple places that can reman your existing SAM. I used G7 in NY once and they sent it back and said it was beyond repair. There are people that can reprogram any of these SAM's to your exact vin #, usually around $150. The dealer can also reprogram the SAM once installed in to your car. I did this once to recover my trailer light functions. It's not a big deal, the garage I use swapped them out in like 20 minutes. I also took my first one apart and simply cleaned it like some of the YouTube videos showed, it got me through until I purchased the used one a couple weeks later.
There is a Libert S Lewis on Facebook in Mt. Vernon NY that advertises reprograming SAM's, TCU's and Keys. I talked with him, I'll use him next time.

Petronio

Hi Tinodea:

My X164 GL 320 CDI has a fried rear sam due to rear sunroof water leak. Your post is of great help, so if a buy an used rear sam, it will not need programing, I guess that if the part number´s 4 last digits do not match, for example, ZB 164 540 XX XX, it is not an issue. All of the used rear sams I have looked at, do not match the last 4 digits. This was not an issue for you?

Regards.