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Premium Member 2005 SLK55 AMG; 2005 SLK350
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4,685 Posts
It's on the bottom of the picture - with the gray connector on the right side.

If you cut the zip ties that secure the wires to the shell (on the opposite end from the gray) and use a good flashlight you can actually see the pin numbers. The roof wires are among the smallest wires.
 

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Registered 2001 SLK320
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43 Posts
I bought a Logic Probe (fancy probe / test light) for $7.50 at Harbor Freight. The most expensive one they had, believe it or not. Very helpful in determining if there was a ground on a pin. Has internal protection so you won't blow out the delicate circuits in your MFCU.
 

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Registered 2001 SLK230K
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28 Posts
In addition to all of the above info, Top Hydraulics has an excellent video on Youtube regarding Vario Roof switch locations and diagnosing at the MFCU.

Here is the link -

and/or keywords on Youtube: Mercedes R170 SLK Top Troubleshooting - Explanation of Electrical system and Microswitch Locations
 
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