CL-Class (W215) 2000-2006: CL 500, CL 600

W215 replace door control module

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Old Oct 22, 2022 | 01:50 PM
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CL500
W215 replace door control module

Hi All.
I have a couple of queries for forum members on here - both related to the title.

1) I am trying to find a replacement drivers side door/seat control module for my CL500 (2005 model). The part number on the existing one is: 215-821-12-51. Does anyone have any idea where I could search to find one?
I naively ordered what I thought was the right one a few months ago, but turns out it was for a LHD car, so when I fitted it only the passenger side features worked. I'm not getting a whole lot of luck searching that part number online either, so I wonder if the part has been upgraded and the number has changed??

2) Second question I have is - how the hell do you quickly/easily unhook the electrical plugs from these units? When doing the replacement I mentioned above - some were easy, and some were almost impossible to remove. I reluctantly had to resort to using pliers and in doing so bent some of the plastic plugs. I'm thinking there must be some sort of special tool to do this? I bought a set of picks/hooks off amazon - but no luck using those. Maybe there is an order in which you are supposed to release them?



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Old Oct 28, 2022 | 05:02 AM
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CLK430
Bump… hope you find your answers.
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Old Oct 31, 2022 | 03:21 AM
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I think the DCM should be programmed to match the location that it needs to operate. Get to somebody who has SDS/DAS.

To unhook them, you just click in the little lever that is at each connector. Pretty easy to do
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Old Oct 31, 2022 | 05:15 AM
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Originally Posted by sandman1572
Hi All.
I have a couple of queries for forum members on here - both related to the title.

1) I am trying to find a replacement drivers side door/seat control module for my CL500 (2005 model). The part number on the existing one is: 215-821-12-51. Does anyone have any idea where I could search to find one?
I naively ordered what I thought was the right one a few months ago, but turns out it was for a LHD car, so when I fitted it only the passenger side features worked. I'm not getting a whole lot of luck searching that part number online either, so I wonder if the part has been upgraded and the number has changed??

2) Second question I have is - how the hell do you quickly/easily unhook the electrical plugs from these units? When doing the replacement I mentioned above - some were easy, and some were almost impossible to remove. I reluctantly had to resort to using pliers and in doing so bent some of the plastic plugs. I'm thinking there must be some sort of special tool to do this? I bought a set of picks/hooks off amazon - but no luck using those. Maybe there is an order in which you are supposed to release them?


post your vin and I will list you the right module
as said by a member here, might need programming anyway

then, if you imagine maintaining your car with a MB system you are dreaming
you might want to get one, msg me

and no there is no special trick to unplug
just use a tiny screwdriver to help if stuck
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