C36 AMG, C43 AMG (W202) 1995 - 2000

Comfort control module

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Old Aug 30, 2019 | 04:56 PM
  #1  
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Comfort control module

Anyone know where the CCM is on the C43,i watched a w202 base model video which indicated that it was next to the battery. I took the right side of my trunk apart and all that i see is the vacuum that locks the doors, a vent that vents the trunk, and I even removed the multi disk changer. I need to know where it is so i could put the knew one since it operates the windows and my sunroof doesn't open at all times.
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Old Aug 30, 2019 | 05:11 PM
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2000 (W202 C200) & 2000 (W202 C55)
Did you diagnose the car..?, any codes...??

-;ZAYED;-
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Old Aug 30, 2019 | 05:19 PM
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Originally Posted by cm60k
Did you diagnose the car..?, any codes...??

-;ZAYED;-
For body components no, But from my understanding the sunroof, front windows, side mirrors, all stop working after 2 days of resetting the battery and programing them.
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Old Aug 30, 2019 | 05:27 PM
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From: A.D., U.A.E
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It could be "comfort/convenience control module",,

As i remember; it's behind the battery..

-;ZAYED;-



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Old Aug 30, 2019 | 05:35 PM
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yea, that's exactly what i have. for some reason mine isn't there maybe because CD player, ill take the car apart another day Lol.
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Old Aug 30, 2019 | 05:52 PM
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From: A.D., U.A.E
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On C200, it's left side, under the back seat,,

on C43, it's behind the battery..

-;ZAYED;-
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Old Aug 30, 2019 | 06:05 PM
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exactly wear under the back seat, i just took these pictures by the way see no module. Don't worry about rusty rust over there that's going to be new.


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Old Aug 30, 2019 | 06:43 PM
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thats pretty weird, i looked up that part number and i got an error on the mercedes website
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Old Aug 30, 2019 | 07:11 PM
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From: A.D., U.A.E
2000 (W202 C200) & 2000 (W202 C55)
The part # is correct,

this "comfort/convenience control module" have many #s:-

"202 820 09 26" or "202 820 10 26" or "202 820 11 26" or "202 820 17 26" or "202 820 42 26"

-;ZAYED;-
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Old Aug 30, 2019 | 11:00 PM
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C43 c55 C63
I have the same issue have to reset my battery every few days ,
i believe I seen that module on the passenger side floor there’s a metal plate on the fire wall under the dash that looks like it could be it not 100% but
ima check myself if that’s the problem I have to change mine as well
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Old Sep 2, 2019 | 05:32 AM
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A shot in the dark, but could it be in the compartment behind the wheel on the right? There are relays and other things electric in there


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Old Sep 7, 2019 | 06:53 PM
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i feel like the c43 doesnt have that. looks like the windows are controlled from the switch module itself

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Old Sep 7, 2019 | 06:55 PM
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From: West Palm Beach, FL
'99 C43, '88 560SL
Originally Posted by cm60k
The part # is correct,

this "comfort/convenience control module" have many #s:-

"202 820 09 26" or "202 820 10 26" or "202 820 11 26" or "202 820 17 26" or "202 820 42 26"

-;ZAYED;-
not so much the part number was wrong, but that it doesnt apply to c43 vin
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Old Sep 7, 2019 | 07:05 PM
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so Ive got the wring diagrams for a '94 w202 and a '97 w202 if we look at a MY '94 w202 you can see the comfort control module (N57) at the top of the diagram but at the top of the '97 there isnt a comfort control module


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Old Sep 7, 2019 | 07:56 PM
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This is exactly where it is. I replaced mine years ago.
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Old Sep 7, 2019 | 08:08 PM
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'99 C43, '88 560SL
Originally Posted by Alex33
This is exactly where it is. I replaced mine years ago.
where is it located???
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Old Sep 7, 2019 | 09:08 PM
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Some one told me it could be under the rear seat on the driver side.
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Old Sep 7, 2019 | 10:33 PM
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Originally Posted by Killahbee
Some one told me it could be under the rear seat on the driver side.
im fairly sure post '97 w202's dont use a comfort control module, rather a network of individual door modules talking over a network. i dont have my rear seats in the car and i dont see anything under the rear seat, passenger or driver side. Also, the module on the passenger front foot plate is for the transmission control. what all stops working when you have to reset the car??
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Old Sep 7, 2019 | 10:42 PM
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only the front windows, the sunroof works when it wants and the side mirrors go out when the windows go out.
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Old Sep 7, 2019 | 11:03 PM
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'99 C43, '88 560SL
Originally Posted by Killahbee
only the front windows, the sunroof works when it wants and the side mirrors go out when the windows go out.
what do you mean by works when it wants? does it open a few inches then stop or just no response opening but later itll open?
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Old Sep 8, 2019 | 11:30 AM
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Just doesn't open at all. One day it opened after jumping the battery, but after 4 days or so the windows stop working.
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Old Sep 8, 2019 | 03:17 PM
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wow, learning something new about this car with each post i read. Was the p1747 code the only one you have?

Last edited by brad_c43; Sep 8, 2019 at 03:36 PM.
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Old Sep 8, 2019 | 05:29 PM
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Yes p1747 is the only code i have, it gives me a check engine light and the diagnostic says CAN BUS error faulty connection between gauge cluster and gear selector module. Other than that the car runs normal. I'm also going to get it scanned with STAR this week. As for the front windows, I'm not sure.
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Old Sep 13, 2019 | 08:28 AM
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Originally Posted by Killahbee
Yes p1747 is the only code i have, it gives me a check engine light and the diagnostic says CAN BUS error faulty connection between gauge cluster and gear selector module. Other than that the car runs normal. I'm also going to get it scanned with STAR this week. As for the front windows, I'm not sure.
Find anything new with the system scan???
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Old Sep 13, 2019 | 10:43 AM
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I wasn't able to because the Mercedes repair shop i went to tried to rob me by basically saying "i have a weak brake caliper in the rear and its 500 to fix," and after that they can work on the CAN BUS. Any who i went to my brothers shop and he fixed it on the alignment lift, went back to them and they told me "I don't wana work on your car." Anyways I know a supra guy who worked at Mercedes thats going to look at it on their free time, but i was brainstorming about the windows and if the windows always work when i restart the battery except the sunroof, then the sunroof is faulty and causes the front windows to stop working, since they're on the CAN BUS.
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