Just a link update to the W124 wiring diagrams, for future searchers.
http://mercedes.vanpeters.com/diagrams/electrical/124wiring.pdf
FYI: The following link will take you to the Technical Information mini-sites for some of the models. Mercedes Released (not sure if they still do) these to the dealerships in advance of a new model launch to introduce sales and repair staff to the new chassis.

Mercedes-Benz Training
If anyone knows of other models that these exist for, please let me know so that I can add them to the collection.
Quote:
Originally Posted by vanwiek
Look at pages 136-139. Hope this helps.
cobbbuzz.com (this is a large file)
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'94 E320 with 272,000 miles. '92 500SEL 133,000 miles.
Mods to the '94:
TomTom GPS in place of ash tray,
Auto Dimming Mirror ,Memory seat, DEI 545T Auto lamps, DEI 530T Auto Up/Down Windows, DEI Remote Start,
Motorola Bluetooth® Car Kit,
Built in phone charger using factory phone wiring,
RainTracker Rain sensing wiper,
Keyless Entry,
Ambient lighting of center storage compartment. Soon: factory heated seats, REST
Mercedes-Benz is my addiction of choice.
http://www.youtube.com/vanwiek