[W124] 230CE '92 ABS and other queries

[Steve Nervig]

On May 12, 2006, at 1:34 AM, Frank Smyth wrote:

> Thanks lads ! Great advice. Will put the car on axle stands this  
> weekend and have a look at the sensors/cabling.
>
> BTW about the window-closure function (key all the way to the left)  
> ---> the sunroof does close too, but then pops up to the tilt  
> setting. Is this by design ? I'm going to fit an alarm but would  
> need to add a window-closure box otherwise the alarm will always  
> leave the sunroof tilted.
>
> Cheers !
>
> Frank
>
>

I do not think that is correct by design, Frank. The sunroof should  
just close and not tilt up.

Here's something you can try. May or may not work, but it is easy to  
do, so what have you to lose?

Under the left rear seat bottom is the N57 'convenience control  
module' relay. It controls the power windows, sunroof and a few other  
items. Pop out the seat bottom and unplug the five or so connectors  
that plug into that relay. If I remember correctly, the two outer- 
most plugs had a strange, sliding latch mechanism to release them.  
After unplugging all connectors, make sure all of the contacts are  
clean.

After a few moments, just plug all of the connectors back into the  
relay.

Here's a few photos of the relay and its location. It is covered on  
pages 144/2 thru 144/5 of the ETM, also.
<http://web.mac.com/dakota/iWeb/Mercedes/Relay.html>

Now check your window-closure function. De-energizing the relay may  
have re-set it and it might work correctly now. No guarantees, but  
like I said, it's worth a try.

Regards,
Steve
Seattle
1992 300CE Sportline