hi i am new on this forum and i just got my first car (1982 300d turbo). it was given to me by my grandpa who didnt tell me anything about the car. Anyways i found out the driverside rear control arm is bent the wheel bearing is shot and the hub is bent. i am planning to replace this in autoshop with a used piece from my local dismantler. the problem is i cannot find any procedure and torque specs or anything about replacing what i just listed above online, alldata, shopkey, or my haynes manual. And i am a complete diesel noob. i would greatly appreciate any advice on doing this. thx alot

 

This is the official Factory Service Manual that covers 99% of the whole car. And, you buy direct from Mercedes.
Factory Service Manual CD Set $19.99+$7 shipping
http://www.classictechlit.mbusa.com/...ssicTechLit%29

I guess old folks (like myself) have a problem hitting things. I managed to hit an Island and cracked my drierside Rear Trailing Arm. That I exchanged for a good used one.

If you get under the car you will see there is only a few points where it attaches. I removed the Rear Axle from mine. It made the Job easier but added a little more work.

 

hi thanks for the reply, does anyone know if i need a special German spring compressor for the rear springs because the hook type definetly looks like its not going to work...thx

 

There is an Asian Copy (still close to $200) of the German Klann type Spring Compressor and it is needed for sure on the Front Wheels because those springs must be 3 times stronger than the Rear Springs.

But, on the Rear people claim that if you jack the rear up high enough you can relive the tension on the Rear Springs and do not need to compress them (I do not know if you need the Axle completely or partially removed to do this). There was however a bent piece of metal that limited the downward travel when I changed mine and I did not bend that. If yours has that you will need to decide if you want to bend it to allow the Trailing Arm to go down more.

I compressed the Rear Spring when I did my job because I was new to any of the Forums and had not read that you could do it with out compression. I use some Generic Sprig Compressors (only on the rear springs!) and had trouble with enough room to fit them in but I got the job done.

You can see how other people are fixing stuff. They also have some members that rent out some tools with the exception that the Member Billybob is on some sort of temp suspension and I believe his contact info is not available; he had the most tools up for rent.
Also I go by Diesel911 on that other forum.