Window module and going up too high

use the scanner on obd 2 generic to retrive or clear codes

Here's the link and I'm sure you will get the solution of your problem
MERCEDES BENZ SLK SERVICE REPAIR MANUAL 1998 2004 DOWNLOAD

check the gear box fluid levels this is usually the cause of most merc faults on the box

the blend door needs repair--need a teardown manual for that mercedes--can be a job even for pros

There is a wax you can buy to rub around the rubber surround where the door and windows contact. I don't remember where i got my last stick from but I would think a candle would work too.

You are trying to stop the glass/frame sticking together. So, rub wax on them and see if this helps.
The windows are supposed to drop slightly when you pull on the door handle. If they don't, it usually means the window module has lost it's position memory.

Continue to hold the window switch down for 5 seconds after it reaches it's lower limit. Do the same for fully up position....this sets the modules limits memory and windows should drop as handle pulled to open the door..

no the fluid doesn't need to be changed. it most likely is not seeing one of the micro-switches for the convertible top or the windows are not syncronized meaning the one touch/express mode is not working. to sync windows just open and close windows using the 1st detent on the window switch. when the window is fully closed hold switch for 3secs longer. as for the micro-switches the wiring sometimes breaks behind the headliner.

first thing I would try, disconnect the battery to the car for a minute, then reconnect it. that may correct your problem.

there is a sensor in the drivers door that senses the door is locked or unlocked, if the sensor is defective the alarm will sound.

This symptom almost always points to a lubrication issue. The SLK hardtop is notorious for needing to belubricated every couple of years. Here is a link with directions andphotos:

http://www.benzworld.org/forums/r170-slk-class/1426014-lubing-vario-roof-pics-1-krytox.html

Mark Andrews

You just go to the link I attached I'm sure you will get the solution of your problem
MERCEDES BENZ SLK SERVICE REPAIR MANUAL 1998 2004 DOWNLOAD