Propeller Shaft
Propeller shaft, replacing
Special tools:
951 2928 Ball hex 6MM/3/8 951 2928 Ball Hex 6mm/3/8
951 2940 Counterhold 951 2940 Counterhold
999 7057 Counterhold 999 7057 Counterhold
Note! Since the illustrations in this service information are used for different model years and/or models, some variation may occur. However, the essential information is always correct.
Removal
Removing cross members
Remove:
- the front cross member from the body. Remove the brake pipe from the mountings in the member
- the rear cross member
- the rear exhaust pipe. Support the front section of the exhaust pipe/three-way catalytic converter (TWC) so as not to put strain on the exhaust manifold.
Pay attention to the following when removing propeller shaft
Note! Applies to 6-cylinder engines only.
Follow instructions. Refer to: Propeller shaft, special information Description and Operation
Removing the screws from the front propeller shaft
Remove the screws from the propeller shaft.
Use counterhold: 999 7057 Counterhold 999 7057 Counterhold.
Removing screws from the rear propeller shaft
Note! Only applies to vehicles with 5-cylinder engines.
Remove the screws from the propeller shaft.
Use counterhold: 999 7057 Counterhold 999 7057 Counterhold.
Leave one screw in place by a few threads for safety.
Note! Only applies to cars with 5-cylinder engines and vibration damper on the AOC-coupling's flange.
Remove the screws from the propeller shaft.
Use counterhold: 951 2940 Counterhold 951 2940 Counterhold.
Leave one screw in place by a few threads for safety.
Note! Only applies to vehicles with 6-cylinder engines.
Pay attention to the following when removing propeller shaft
Follow instructions. Refer to: Propeller shaft, special information Description and Operation
Remove the screws from the propeller shaft.
Use counterhold 951 2940 Counterhold 951 2940 Counterhold and socket 951 2928 Ball hex 6MM/ 3/8 951 2928 Ball Hex 6mm/3/8.
Leave one screw in place by a few threads for safety.
Note! Certain vehicles with 6 cylinder engines have a rear CV joint with 6 screws, in such cases use 999 7057 Counterhold 999 7057 Counterhold. See below for replacement parts.
Replacement part propeller shafts only have 4 screw holes on the rear CV joint. The flange on the Active on Demand Coupling has 8 threaded holes to fit propeller shafts with both 4 and 6 screws.
On flange with hole pattern for both 4 and 6 bolts, press loose the prop shaft from the AOC-coupling by threading in a bolt M8 20 mm long from the rear through one of the threaded holes that are not used.
Removing the mounting for the center bearing for the propeller shaft
Remove:
- the screws for the bearing for the propeller shaft in the center bearing member
- the screws for the center bearing member. Let the member rest on the exhaust system.
Removing the propeller shaft
Press the propeller shaft joints together. Detach the front joint from the flange for the bevel gear and move it to the side.
Remove:
- the screw from the rear joint and detach it from the flange
- the propeller shaft.
Installation
Note! For tightening torques, see: Tightening Torque
Note! To ensure that there is no exhaust leakage, see: Flanged joint, assembling Flanged Joint, Assembling.
Installing the propeller shaft
Check carefully that the mating surfaces on the propeller shaft and flange are clean.
Align the propeller shaft joints with the flanges. Loosely install the screws in the center member and the center bearing.
Installing the front joint on the drive flange
Use new screws. Tighten. See: Tightening Torque
Use counterhold: 999 7057 Counterhold 999 7057 Counterhold.
Installing the rear joint on the drive flange
Note! Only applies to vehicles with propeller shaft universal joints with 6 bolts.
Use new screws. Tighten. See: Tightening Torque
Use counterhold 999 7057 Counterhold 999 7057 Counterhold.
Note! Only applies to vehicles with 6-cylinder engines and CV joint with 4 bolts.
Clean the joint using isopropanol P/N 1161 721 or similar.
Use 4 new screws.
Lubricate the threads and underneath the screw heads. Use normal lubricating oil. Wipe off any excess lubricating oil to prevent it getting between the flange surfaces.
Note! When it is difficult to use a protractor to take the measurement, see: Screwed joint, torque/angle tightening Screwed Joint, Torque/Angle Tightening.
Tighten according to: Screwed Joint, Torque/Angle Tightening
Note! There are cast markings on the propeller shaft CV joint's flange and on the flange just beside the bolt holes. The markings should be opposite each other.
Use counterhold 951 2940 Counterhold 951 2940 Counterhold and socket 951 2928 Ball hex 6MM/ 3/8 951 2928 Ball Hex 6mm/3/8.
Hint: To angle tighten, mark the material and then the screw 120° in front of the marking. Then tighten so that the markings are opposite each other.
Installing members and the exhaust system
Tighten the 4 M8 screws for the support for the center bearing.
Tighten the 2 x M8 screws for the propeller shaft center bearing. See: Tightening Torque
Install:
- the front cross member to the body using 4 M8 screws. Tighten
- the brake pipe in the mountings in the member
- the rear exhaust pipe assembly using 2 M8 screws. Tighten
Note! Check that the gasket on the exhaust pipe's flange joint is free from defects.
- the rear cross member, 2 M8 nuts. Tighten.