Date registered: Sep 2008
Vehicle: 1983 Mercedes 300DT 301500 miles
Location: Salt Lake City
Mentioned: 1 Post(s)
Quoted: 1 Post(s)
Converting my 94 C220 from Auto to Manual 5speed
Converting my 94 C220 with 249 000 miles from Auto to 5 Manual. Here is what I have done and found out so far:
1.A manual transmission out of a 190E or 190D will fit. It can be the 5 speed 717.411 or the close ratio 5speed getrag with dog leg first gear.
2. Pedal assembly from the 190E 190D will fit with small modifications in order to connect the top bolt on the bracket.
3. The Shifter from 190E/190D will fit (it has to be for the corresponding transmission - can't use the getrag shifter with dog leg first on the 717.411)
Now for the problematic parts:
1. Flywheel. The one that I got out of a 87 190D is the so called single mass. It bolts on but does not have the timing magnet and the two triggers. So the car won't fire with that one unless it is modified with the two triggers and magnet transferred from the flexplate to the flywheel.
I tried doing that with no luck. It is probably possible if done by a shop.
I ended up ordering a flywheel from a 95 C180 from germany. Just ordered that today.
2. The driveshaft will have to be longer since the manual transmission is shorter then the automatic by 11cm. I did take the driveshaft from the 190D but it won't fit. The idea was to keep the rear part of the c220 drive shaft and use the front part of the 190d drive shaft.
The problem is that the 190D rear drive shaft it shorter then the c220 rear part (basically the carrier bearing is located further toward the front in the c220). This makes the front part of the 190d drive shaft too long. It seems to be too long by approximately 9cm. This brings the idea that if I get the front part of the drive shaft off of 190e with auto transmission it will be just the right length. I will be going to the junkyard next saturday to give it a try.
3. The transmission crossmember from the 190D will not bolt up to the C220. I have not found any possible solutions for this problem yet. I will either have to modify the crossmember from the 190D and make it fit or I will try using a crossmember out of a w123 240d manual (there is one in the junkyard).
4. The bracket that holds the exhaust to the transmission will have to be modified.
5. I don't know if the shifter linkage will be the right length or if I will have to modify those.
And here is the pictures so far:
All the parts came out of a 1987 190D 2.5 with about 220k miles. It is obvious why the car ended up in the junkyard - the pressure plate of the clutch had broken fingers and the throw out bearing was destroyed. Had to use an angle grinder to remove it.
1983 Mercedes 300D Turbo 327 000 miles. Spare car.
1994 Mercedes C220 converted to run on Natural gas.
Bought at 138 200 miles, current odometer: 310 500 mi