94 E320 Service Questions

[oldfatman7]

Hello again everyone!
I and replacing the rotors on the car and dont remember the torque for the front nuts on the wheel bearings. Also I am changing the trans filter and would appreciate what everyone thinks is the best fluid for the auto trans. and the best choice for the fluid in the rear trans axel.
One more question, what is the torque on the brake callipers? And is dot 4 the recomended brake fluid?
Thank you very much for your replys.

[Kestas]

The front nuts aren't adjusted to torque, they're adjusted to proper axial play. The procedure is as follows:

- Tighten nut until hub can only be turned with difficulty.
- Back off nut until loose.
- Tighten nut until you get axial bearing play between 0.01 and 0.02 mm.
- Tighten bolt on nut to 8 Nm and recheck bearing play.

If you don't have a dial gauge and want to chance it, a lot of people just tighten the nut finger tight on the third step.

Best fluid for the transmission?... probably synthetic, though Dexron III is specified for the car and should work okay.

Best fluid for the rear axle?... again synthetic, but any good brand name hypoid gear oil should work, as long as it meets MB's specification of 85W-90 or 90W.

DOT 4 brake fluid is specified for your car.

Caliper bolts are torqued to 115 Nm.