Drive Shaft, Removing and Installing
Drive shaft, removing and installing
Special tools, testers and auxiliary equipment required
^ Assembly tool 3139
^ Pressing lever 80-200
^ Bolt M8 x 30 (2x)
Removing
- See notes; Refer to Driveshaft Servicing
- Remove rear section of exhaust system as from clamp(s):
- Use the press lever 80-200 to pry off rear attachments -A- of the heat shield for the drive shaft.
- Unscrew securing bolts -13- for the center bearing.
Note: When unscrewing the securing bolts support the drive shaft by hand. Do not bend drive shaft.
- Remove heat shield. Continue supporting the drive shaft.
- Screw in securing bolts for the center bearing again hand-tight.
- Remove heat shield for drive shaft off the transmission -arrows-.
- Check for a factory marking (colored dot) on the drive shaft and on the drive shaft flange on the final drive at the rear. If no colored dot is present, mark the position of the drive shaft flange -arrow A- relative to the rear final drive -arrow B- with a colored dot.
- Screw in bolt -3- M10 x 100 into rear final drive.
- To loosen the bolts -1- of there are front drive shaft, counts hold with an assembly lever -2-.
- Remove the three upper securing bolts from each constant velocity joint on the drive shaft.
- Engage assembly device 3139 and tighten plastic nuts.
Note: Never fit assembly appliance onto balance plates.
- Remove the three remaining securing bolts from the constant velocity joints at the front and rear.
- Push back constant velocity joints of the drive shaft until limit stop.
- Remove the securing bolts -arrows- for the intermediate bearing and remove the drive shaft with the assembly device.
Note: Only transport and store drive shaft when extended.
Installing
Installation is carried out in the reverse order, note the following:
Notes:
^ To avoid imbalance, the flanges of the drive shaft -arrow A- and of the rear final drive -arrow B- must be installed so that the factory color markings or the markings made subsequently are in line.
^ If a new drive shaft if installed and if the factory color marking on the flange of the rear final drive is no longer visible, the radial run-out on the drive shaft flange must be measured and the color marking on the drive shaft placed in line with the new marking on the flange.
^ Replace gaskets on flange shafts (detach protective foil and stick gasket onto flange shaft).
^ Remove the old and dry high-temperature grease from the constant velocity pints and the flanges for the drive shaft. Replace with the exact same quantity of new high-temperature grease G 000 633.
^ Note the installation position of the drive shaft The central constant velocity pint is located behind the center bearing facing toward the rear final drive.
^ It is essential that the locking fluid remaining in the threads in the flange shafts on the transmission and rear final drive is cleaned out after removing the drive shaft. Otherwise there is a danger that the new bolts will seize when they are screwed in and then shear if they have to removed later.
^ The threaded holes can be cleaned with a thread tap.
^ Replace drive shaft bolts (self-locking).
- Install drive shaft and attach bolts for constant velocity joint.
- Screw in securing bolts -arrows- for the center bearing hand-tight.
- Screw in bolt -3- M 10 x 100 into rear final drive.
- To tighten the bolts -1- of the rear and front drive shaft, counterhold with an assembly lever -2-.
- Remove assembly device 3139
- Unscrew securing bolts -arrows- for the center bearing.
Note: When removing the securing bolts support the drive shaft by hand.
- Install heat shield -2-. Continue supporting the drive shaft.
- Screw in securing bolts -4- for the left and right center bearing several turns.
- Secure the heat shield -2- on right and left at the center bearing -3using bolts -1- (M8x30).
Note: When tightening the combination bolt-4- make sure that the center plug arrow A- is located at the securing bore -arrow B-.
- Tighten securing bolts -2- for the center bearing.
- Install the rear securing clips for the heat shield.
- Remove bolts -1-
- Install exhaust system and align stress-free:
Tightening torques