[W126 Coupe] Talbir's coupes in MB Enthusiast

[Sharan Bains]

Hi Matt,

Firstly thanks for the compliments.

More importantly though, thanks for posting up the part numbers for the 
electric seat frame bushings, you did the other day. As you know, I have the 
rear SPLIT electric heated seats in my 560 SEC - and I have 4 of those pins 
on the backrests, two on each. So I got those 4 rubber bushings from my MB 
dealership.

I had the same rattle over bumps - and now that's dissapeared. I knew it was 
those pin inserts on the frames, as they are not a tight fit and it's metal 
pins in metal frames which are bound to rattle. I was thinking of wrapping 
insulating tape over the pins to make it a snug fit....but what better than 
actual MB bushings....and cost less than 3 gbp for the set of 4.

Many thanks for that great info.

Now....the all-4 window switch. It's an absolute doddle if you already have 
the Bergwerks kits fitted front and rear. Those BG kits have a thin gauge 
orange wire and a thin gauge red/white wire. When the red/white wire is 
supplied with ground, the windows are lifted up. When the thin orange wire 
is supplied ground, the windows are lowered. You may have already connected 
the red/white wire to an output from your alarm brain which gives low ground 
when alarm is armed to give you total closure on arming alarm.

I'll confirm part numbers and wiring diagram for the following, which is all 
you need :

- MB window switch
- MB window switch pin bushing housing
- MB window switch pin bushings
- lengths of wire

On the window switch, you need to supply an earth and a wire from the night 
illumination point (grey/blue wire) so it illuminates at night when you 
switch your lights on, just like the other switches - BEST way to do this is 
from the fader switch pin plug. It already has an earth and night 
illumination wire coming into the plug. Earth is the brown wire and night 
illumination wire is grey/blue.

I'll confirm this tomorrow, but from pure memory, wiring on the switch needs 
to be :

Pin 1 - earth (brown)
Pin 2 - night illumination wire (brown)
Pin 3 - earth (brown)
Pin 4 - to orange wire on BG modules
Pin 5 - to red/white wire on BG modules

(I may have 4 and 5 the wrong way round -easy to swap over when testing)

On the standard 4 window switches installed in the w126 already, the wiring 
is as follows :

Pin 1 - live +12V
Pin 2 - night illumination wire (brown)
Pin 3 - earth (brown)
Pin 4 - black wire to window motor
Pin 5 - green wire to window motor

The switch basically switches live and ground between the green and black 
wires on the window motors. But on the BG modules, lifting or lowering both 
require negative ground inputs - hence Pin 1 becomes -ve ground.

I'll confirm part numbers and wiring schematic tomorrow for you. Although, 
your MB parts can supply the window switch, pin bushings and plug based on 
your chassis number, ifyou tell them you need a drivers window switch and 
associated pin bushings and housing plug.

The All 4 window switch is great - it's so convenient being able to lower or 
raise all windows through one switch. It works even better on the SE/SEL's 
as the windows are smaller and the motors can lift/raise them quicker and 
easier. As well as the 560SEC and 500SEC, i also did this on my 300 SE.

Speak tomorrow.

talbir




>From: Matt Petersen <mattpetersen at paradise.net.nz>
>Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
>To: mbcoupes at mbcoupes.com
>Subject: [W126 Coupe] Talbir's coupes in MB Enthusiast
>Date: Sat, 29 Jan 2005 14:46:59 +1300
>
>Hi Talbir, just got the November issue down under and saw your two
>SEC's, lovely cars. You have quite a collection.
>
>How did you do the install and fitment of the window switch to acheive
>one touch all windows down? I have the Bergwerks auto window kit here
>and was thinking about replacing my fader switch with another window
>switch to do something similar to what you have done.
>
>Cheers
>Matt.
>The MB Coupes Website!
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