Hello Board. A while back I posted about after-market add on's, specifically referring to whether it's possible to add seat memory to a W124.

G-Benz brought up a great point about comparing wiring diagrams for this model with and without seat memory, and then comparing the feasibility of whether to do it or not.

I think that's a great point, especially in figuring out the logistics. I've called around to a few shops and they are like "huh"? This has now become a quest for me - I am the type when I think something can be done and I am told no, I get pissed and want to prove the world wrong.

So for those of you who have the Service CD's and are familiar with them, let me ask this question. Are they step-by-step for particular issues? For example, does it tell you how to replace the seat memory function? Does it have wiring grids or layouts so that it is easy to compare with and without? Or is it written for techs only so that to me, a non-tech, it would appear, for lack of a better pun, as if it were written in German?

If obviously it is step-by-step and in non-tech speak, then I guess the next step would be to purchase the manual, figure out what has to be done, then go pricing the parts if I want to do it myself, or take it to a recommended mechanic and show him and negotiate a cost.

Or am I really wasting my time on this one?

thanx,

"BocaFerris"
George Karibjanian
Boca Raton, Florida
gdk33486@bellsouth.net
1995 E320 Wagon

The CD manual should provide a wiring diagram and component location guide, and probably not much more. On the other hand, that might be all you need. The manual should distinguish the 'with' from 'without' versions of the diagram. A caveat is that the CD manual is provided for US spec cars. If you don't have memory seats because your car wasn't originally delivered in the US, the manual might not provide the 'without' diagrams.

I would be concerned with the price and fitment of the parts you need (swtich panel, controller, seats). If you can't work the memory function into the seats you have, my guess is that it will cost you in time and parts the same as swapping your car for a car that has the features you want.

Good luck,
Sixto
91 300SE
... I konw my seats and my seats know me

. . . depends?
 

Based on your question, "do they tell all?", I checked my CD. Sadly it does not in that area (seats).

There's a few sketches showing major (key) component locations but there's no schematics. This is the PM CD-ROM.

In the ECU area, it's very good as there are schematics and adjustment procedures, etc..

So possibly the MB official CD may be (and should be) better in that and all areas.