Pinion seal - 190D
 

I’ve got a minor leak on the pinion seal on my 190D. I ordered the seal from mercedesshop and was searching the forum for any issues on this job. It appears that there is a potential of over tightening the diff nut causing pinion bearing failure. Some get around this by marking the original nut position and tightening to the same point on reassembly. Others have said that a rear end shop should do the job due to preload, crush washer etc. Should I attempt this?

Also, does anyone have the electronic FSM on the rear axle on this car. MBUSA says they don’t carry the CD’s for a 190D. The rear axle link here doesn’t work. http://web.archive.org/web/20060903072415/mb.braingears.com/201_DISK1/PDF/10006.pdf
I’d like to be able to read the procedure first.

I can send you the FSM pages for this job. They're ~1MB so I can't post them here, but if you send me a PM with your e-mail address I will e-mail them to you.

I may need to do the same job eventually (I get ~1 drop of fluid on the floor per 3 weeks so it's not that bad yet). If you do it, please let me know how it goes!