M-Class (W164) Produced 2006-2011: ML280CDI, ML320CDI, ML420CDI, ML350, ML500, ML550

Best way to replace rear SAM?

Old May 23, 2015 | 01:45 AM
  #1  
phenomic's Avatar
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ml350, clk, amg
Best way to replace rear SAM?

I believe my rear SAM is nuked. It was in a puddle of water and I had a few random electric problems.

I am assuming the dealer might actually be the best place to go (purchase+program) versus finding something elsewhere.

Currently: fuel gauge shows empty until half (when it goes to full)
Errors for front marker lamps but they work just fine and ive replaced em as well.

I cleaned off the corrosion as best I could and my rear hatch began to work properly (never did before).

I sealed the brake light with silicone and it cut down 90% of the leak but there is still some water finding it's way in.

I guess there is a possibility that the sam is fine and the fuel gauge could be a bad sensor/sender. Is there a good way to figure this out? I do know someone with a same year ml350 w/ similar options, i bet they would let me swap to test but I dont want to cause them any problems.

How much should I expect to pay for a new one?
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Old Jun 7, 2015 | 07:26 PM
  #2  
Euler's Avatar
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From: Atlanta, GA
2008 C63, 2008 ML550, 2014 KTM 500 XC W, John Deere 990
I have a ML 550 that leaked through the tail light assembly and it ruined the SAM. SAM needs to be programmed when installed. Dealer charged me around $1000 for the SAM, programming, and new tail light assembly.

Last edited by Euler; Jun 8, 2015 at 05:55 PM.
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