STOCK 6 speed for W202!!!
Gears would strip, the pinion bearing (the diff was integrated into the transmission case) would also fail, the inner driver cups would sometimes explode, the cases could crack right open too. Gearboxes have lots of moving parts inside, plenty to go wrong there. Guys would upgrade clutches to hold more power, but then there was just no more give - the abuse would go into the rest of the transmission and that was it.
In my view, if this was such an easy swap, there would be tons of C43s with manual gearboxes running around.
Looking into this many times for both 202s & 208s...its alot more difficult that it sounds. You can get a period-correct manual but its not going to shift that well and its not the best design, but it should mate up properly to the bell housing. May not be a bad idea to run a custom ltw flywheel & clutch setup.
it can be done... but at a certain point the costs make it almost unviable (unless you are bill gates and can **** away money effortlessly).
At a certain point you just got to be honest with yourself and realize it may be time to sell your car and upgrade to a newer AMG for not much extra cash (these days they are so cheap you can get amazing newer AMGs for a tiny fraction of what they used to cost).

The Best of Mercedes & AMG
I was watching this clip on Jay Leno's Garage website and it reminded me of this discussion we've had.

I have been in touch with a Piggy Back ECU specialist in Aussieland. I need to get them a wiring harness diagram. does anyone have it as a pdf? and what years will that cover? They say that they can work around the ASR with thier piggy back and also I can change to larger injectors for more HP.
And apologies for barging in like this, but it has been an interesting read and to some extent helpful to my plight.
I am currently fitting a M112 C32 3.2L AMG motor as a retrofit into my 1975 260Z, yes you read right, but its not a simple retrofit for a number of reasons, some of which may apply to the idea of fitting a C43 with a manual box as discussed in this thread, so thought I would share.
Just to give you some background regarding what I have been through, here is a quick synopsis, first in the past 48 hours I have learnt that the entire electronics system and hardware from a C32 sedan CANNOT be retro fitted into my car, that the bad news however dumping the auto trans, ECU and TCM and fitting a manual trans will allow me to move forward, what i have to do however is run something like a MoTeC M600 aftermarket management system instead.
The reason for this is simple, the C32's ECU and TCM actually use telemetry from an array of other inputs such as the ABS etc, if one of these telemetry streams is inactive the ECU and TCM read it as being a fault and the entire electronics go into limp mode.
If I was to use a manual stick shift like a Getrag with the MoTeC management system basically what I will be dealing with is a lump of metal with pistons injectors etc etc etc that the MoTeC can be set up for.
I'm not sure of how the C43's were originally set up, but considering that they may require telemetry from a TCM you may find that the problem you will face is that the C43's ECU will read the non existence of a TCM as a critical fault and therefore go limp mode on you.
I may be wrong but somehow I suspect that as the forerunners to the C32's there would be the same degree of complexity in the electronics.
In My case I have a car that never came out with advanced safety featres so I have to dump all the Benz gear and go manual which is now kind of a big plus.
Once again, sorry for crashing the party.
Cheers
John
Last edited by charliekuney; Dec 5, 2014 at 12:04 AM.
Looking into this many times for both 202s & 208s...its alot more difficult that it sounds. You can get a period-correct manual but its not going to shift that well and its not the best design, but it should mate up properly to the bell housing. May not be a bad idea to run a custom ltw flywheel & clutch setup.
it can be done... but at a certain point the costs make it almost unviable (unless you are bill gates and can **** away money effortlessly).
At a certain point you just got to be honest with yourself and realize it may be time to sell your car and upgrade to a newer AMG for not much extra cash (these days they are so cheap you can get amazing newer AMGs for a tiny fraction of what they used to cost).






