Electrical gremlins
12-24-2017, 10:32 AM
#1
Member
Thread Starter
Electrical gremlins
Hi Guys,
The wife’s 2007 ML63 for the second time now has mysteriously spawned the same problem now.
1. Turn signals don’t work
2. Brake lamps don’t work
3. Push to start does not work
4. Dash board does not work.
Last time this happened it went away on its own after sitting in the garage overnight.
Anyone had this happen to them before?
The wife’s 2007 ML63 for the second time now has mysteriously spawned the same problem now.
1. Turn signals don’t work
2. Brake lamps don’t work
3. Push to start does not work
4. Dash board does not work.
Last time this happened it went away on its own after sitting in the garage overnight.
Anyone had this happen to them before?
12-25-2017, 08:13 PM
#4
Member
Thread Starter
Correction,
Only the fuel gauge does not work. It reads 0.
Other than this the turn signals do not function, neither does the hazard button.
The push to start is disabled
The interior lighting seems to be affected as well.
From the research I've been doing all signs point to rear SAM module. Actually it was soaked in water, it appears there is some sort of leak in the vicinity. Ive taken it apart, cleaned it and dried it but no dice. One of the legs on the chips seems to be rotted off and it no longer functions.
Im going to order one tomorrow from the local dealership. Hopefully this resolves this issue.
Thanks for the help
Only the fuel gauge does not work. It reads 0.
Other than this the turn signals do not function, neither does the hazard button.
The push to start is disabled
The interior lighting seems to be affected as well.
From the research I've been doing all signs point to rear SAM module. Actually it was soaked in water, it appears there is some sort of leak in the vicinity. Ive taken it apart, cleaned it and dried it but no dice. One of the legs on the chips seems to be rotted off and it no longer functions.
Im going to order one tomorrow from the local dealership. Hopefully this resolves this issue.
Thanks for the help
12-26-2017, 05:10 AM
#6
Super Member
Correction,
Only the fuel gauge does not work. It reads 0.
Other than this the turn signals do not function, neither does the hazard button.
The push to start is disabled
The interior lighting seems to be affected as well.
From the research I've been doing all signs point to rear SAM module. Actually it was soaked in water, it appears there is some sort of leak in the vicinity. Ive taken it apart, cleaned it and dried it but no dice. One of the legs on the chips seems to be rotted off and it no longer functions.
Im going to order one tomorrow from the local dealership. Hopefully this resolves this issue.
Thanks for the help
Only the fuel gauge does not work. It reads 0.
Other than this the turn signals do not function, neither does the hazard button.
The push to start is disabled
The interior lighting seems to be affected as well.
From the research I've been doing all signs point to rear SAM module. Actually it was soaked in water, it appears there is some sort of leak in the vicinity. Ive taken it apart, cleaned it and dried it but no dice. One of the legs on the chips seems to be rotted off and it no longer functions.
Im going to order one tomorrow from the local dealership. Hopefully this resolves this issue.
Thanks for the help
12-26-2017, 05:24 AM
#7
MBWorld Fanatic!
Correction,
Only the fuel gauge does not work. It reads 0.
Other than this the turn signals do not function, neither does the hazard button.
The push to start is disabled
The interior lighting seems to be affected as well.
From the research I've been doing all signs point to rear SAM module. Actually it was soaked in water, it appears there is some sort of leak in the vicinity. Ive taken it apart, cleaned it and dried it but no dice. One of the legs on the chips seems to be rotted off and it no longer functions.
Im going to order one tomorrow from the local dealership. Hopefully this resolves this issue.
Thanks for the help
Only the fuel gauge does not work. It reads 0.
Other than this the turn signals do not function, neither does the hazard button.
The push to start is disabled
The interior lighting seems to be affected as well.
From the research I've been doing all signs point to rear SAM module. Actually it was soaked in water, it appears there is some sort of leak in the vicinity. Ive taken it apart, cleaned it and dried it but no dice. One of the legs on the chips seems to be rotted off and it no longer functions.
Im going to order one tomorrow from the local dealership. Hopefully this resolves this issue.
Thanks for the help
If you buy a new one, it will not fully function. It must be programmed.
'You would be better off if you found a used one with the same exact part number, which is already programmed.
Last edited by Maj. Dundee; 12-26-2017 at 06:20 AM.
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12-26-2017, 09:29 AM
#8
Member
Thread Starter
I started my search for a new one. However I cannot find one with the matching part numbers, there is 3 sets of part number on the SAM. Which one should I be looking at?
ZB: A 164 540 96 62
HW: A 164 545 13 16
SW: A 164 442 27 00
Also if i just find any SAM that came off the same type of car as my wife's do the part numbers need to match if the connectors are the same and if I'm going to have it reprogrammed anyways?
I've found ones in local recycling yards that are a great value but have differentiating part numbers.
Thanks for your help!
ZB: A 164 540 96 62
HW: A 164 545 13 16
SW: A 164 442 27 00
Also if i just find any SAM that came off the same type of car as my wife's do the part numbers need to match if the connectors are the same and if I'm going to have it reprogrammed anyways?
I've found ones in local recycling yards that are a great value but have differentiating part numbers.
Thanks for your help!
12-30-2017, 03:10 PM
#11
Member
Thread Starter
Problem fixed!
Replaced rear SAM, reprogrammed and we are back in buisness.
I removed the rear taillights and sealed around the perimeter with Butyl sealant. Although the tech that did the work says its not the rear tail lamp rather it is the rear air vent in the quarter panel that leaks water into the body. Apparently they the dealer has an updated part for this due to the water intrusion. I will research this later. For now I covered it with some plastic in hopes of diverting any water from the vent. Will monitor situation after car wash.
Thanks for all the help guys, I would have had to pay someone to diagnose this for me otherwise.
Cheers!
Replaced rear SAM, reprogrammed and we are back in buisness.
I removed the rear taillights and sealed around the perimeter with Butyl sealant. Although the tech that did the work says its not the rear tail lamp rather it is the rear air vent in the quarter panel that leaks water into the body. Apparently they the dealer has an updated part for this due to the water intrusion. I will research this later. For now I covered it with some plastic in hopes of diverting any water from the vent. Will monitor situation after car wash.
Thanks for all the help guys, I would have had to pay someone to diagnose this for me otherwise.
Cheers!
12-31-2017, 02:39 AM
#13
Member
Fill the cavity (and the one under the spare wheel, where the tailgate pump and transmission control unit live) with those sachets of silicon gel that absorb moisture.
Anything that I buy, that has those, they get saved to chuck in there! I also bought a bagful, cheaply, from Amazon.
Oh, the cavity under the passenger (drivers in my case) front seat where the batteries and front SAM module too.
Glad you got it fixed and good luck!
Anything that I buy, that has those, they get saved to chuck in there! I also bought a bagful, cheaply, from Amazon.
Oh, the cavity under the passenger (drivers in my case) front seat where the batteries and front SAM module too.
Glad you got it fixed and good luck!
12-31-2017, 02:29 PM
#14
Member
Thread Starter
However I applied butyl sealant to the back of the gasket and pressed it onto the body anyways.
I think the culprit is that vent between the body and the bumper under the rear quarter panel.
01-01-2018, 05:06 AM
#15
MBWorld Fanatic!
The seal gasket was affixed to the back of the lamp. However I examined the seal between that and the body and there was no sign of water coming in.
However I applied butyl sealant to the back of the gasket and pressed it onto the body anyways.
I think the culprit is that vent between the body and the bumper under the rear quarter panel.
However I applied butyl sealant to the back of the gasket and pressed it onto the body anyways.
I think the culprit is that vent between the body and the bumper under the rear quarter panel.
So when the morons at the assembly plant were installing the lamps, the adhesive was on the wrong side. So instead of bringing it to management's attention, they simply placed the seal on the lamp instead on the body. The only thing they had to do was use the left seals on the right side and vice versa.
It's you vehicle and you can do what you want, but you should buy new seals.
