The windows appear to have an extremely tight fit in the upper window frame
which is noticable when closing both doors. Resynchronization in accordance
with the instructions in the owner's manual appears to have no effect.
The manual also states that " When opening a door the window lowers
slightly. After closing the door, the window closes again."
This feature is not working For now, I am manually slightly lowering the
window and then closing the door.
Any ideas where to start looking to solve this issue. All other functions
associated with the windows work fine.
The window glass on the SL (and some other MBZ cabriolet, roadster and coupe
models) is frameless. To cut down on wind noise and prevent any leaks, the
top edge of the glass actually fits into a channel in the rubber seal in the
top. This is much the same way that the glass on a sedan fits into the top
channel of the door frame when raised. With this tight fit, it is necessary
for the glass to be slightly lowered when opening or closing the door to
clear the outer lip of the seal. Otherwise, it would be very difficult to
open the door and could even damage the seal or the glass itself. In
closing the door, the fully-raised glass would actually push against the
outside lip of the seal instead of fitting into the channel, and it would
then leak and be noisy. There is a mechanism so that once the door latch is
released (either by pulling the inside lever or the outer door handle), the
electric window motor will automatically lower the glass about half an inch.
The glass remains slightly lowered until the door is again closed, which
causes the glass to be fully raised automatically to fit tightly in the
My first question in diagnosing would be to ask if this is happening on both
doors or just one. If it's both, then I'd suspect something has gone awry
in the module (or its wiring, i.e. maybe a simple fuse failure) that
controls this. If it's just one door, then I'd suspect it's a failure of
the that door's latch sensor.
Yes. I had a related problem with my CLK cabrio on the driver's door (on
right). The window would drop too far and then not rise fully, leaving an
inch or so.
The computer needed resetting; it was a simple fix sorted by MB (no cost! MB
London), just twiddling with the window button, but the OP said the
standard procedure did not work. If a dealer is nearby maybe he can suggest
For direct contact replace nospam with schmetterling
This is happening with both doors. I checked the fuses in the box by the
firewall and they are ok. Are there any fuses for this system hidden
somewhere else? Going through the 129 service DVD was no help either. At
least I could not find anything on this problem.
You are right on
I finally found it under the dealer service bulletins re. POWER SOFT TOP
CONTROL MODULE WITH SHORT STROKE POWER WINDOW CONTROL in the 129 service
dvd. This feature was phased into production in Dec 1994. Build date of my
129 is Nov.94. but sold as a 95 with a 95 owner's manual describing this
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