OK, so this is the flex disc that I removed from the 84' Euro 280CE with 5 speed transmission. (part# 1234110315) It is very different than the ones used in the diesel cars with automatic transmissions. So is the difference due to manual vs auto transmission, or gas vs diesel motors? I need to replace them as they were original, and are shot. Want to make sure I get the correct ones for the 5 speed transmission, now running a diesel motor.
i have a 1983 300d with 5 speed and i have exact the same flex discs.
These are specific for the manual 5 speed transmission no matter if the car is gas or diesel.
You can buy febi 10581 as a replacement part.
It is a manual vs automatic transmission thing. So fit that type of flex joint with the extra bits in it. Note the orientation as described in the FSM (sorry I can't remember the way it is meant to be off the top of my head - it is specified in the book)
AFAIK, there are two types of flex disc: those for the 4-spd manual and auto, and those for the 5-speed manual. The 5-spd manuals had what Mercedes called "tangentially soft" flex discs, while the rest had "radially soft" flex discs. There is a myriad of part numbers, though.
I originally had the 4-spd flex discs on my car after converting to the 5-spd transmission, but I now have the proper 5-spd flex discs. I can't really say I noticed a difference, though.
Despite the ratio being not too far off, I've felt that the 4-speed m110 manual cars have felt a little more gutsy than the 5-speeds. I wonder if these discs could have anything to do with the feeling of less torque in the 5 speed versions I've driven.
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