BMW 7 Series: Replacing Center Mount Gaiter
Necessary preliminary work
- Remove PROPELLER SHAFT.
NOTE: The propeller shaft is balanced.
The front and rear propeller shafts must be reassembled in the same position.
Detach gaiter (1) from groove (2).
Mark front propeller shaft (3) and rear propeller shaft (4) in one plane.
.png)
Fig. 25: Marking Front Propeller Shaft And Rear Propeller Shaft In One Plane
Pull apart propeller shaft.
.png)
Fig. 26
Installation note: If necessary, insert new clamping ring (1) into front propeller shaft (2).
.png)
Fig. 27: Identifying Front Propeller Shaft With Clamping Ring
Release gaiter (1) with screwdriver from groove (2) and pull off over longitudinal splines.
Installation note: Apply an even coating of grease to longitudinal splines on shaft.
Observe markings and force front propeller shaft onto longitudinal splines (markings must be flush).
Push gaiter (1) during installation into groove (2) and make sure it is firmly fitted.
.png)
Fig. 28: Identifying Gaiter And Groove
REPLACING FLEXIBLE DISC FOR FRONT PROPELLER SHAFT
Necessary preliminary work
- Remove PROPELLER SHAFT at transmission and center bearing.
NOTE: To protect universal joints, tie back propeller shaft in area of center mount.
Release screws and remove flexible disc (1) from propeller shaft.
IMPORTANT: Replace ZNS bolts and self-locking nuts.
Tightening torque and angle of rotation, see 26 11 2AZ under PROPELLER SHAFT COMPLETE.
Installation note:
- During installation arrows (2) on circumference of flexible disc must point to flange arms (3).
.png)
Fig. 29: Locating Screws Of Flexible Disc
Installation note:
Check centering mount.
Replace damaged CENTERING MOUNT.
Grease centering mount. See DRIVESHAFT - OPERATING FLUIDS.
.png)
Fig. 30: Locating Propeller Shaft Centering Mount
REPLACING FLEXIBLE DISC FOR REAR PROPELLER SHAFT
Necessary preliminary work
- Remove PROPELLER SHAFT from rear axle final drive and center mount
NOTE: To protect universal joints, tie back propeller shaft in area of center mount.
IMPORTANT: Before removing propeller shaft: The three-hole flange to the rear axle final drive is balanced with the propeller shaft.
The three-hole flange and the propeller shaft must be reassembled in the same position.
Mark three-hole flange (1), flexible disc (2) and propeller shaft (3) in one plane.
.png)
Fig. 31: Marking Three-Hole Flange, Flexible Disc And Propeller Shaft In One
Plane
Release screws and remove flexible disc (1) from propeller shaft.
IMPORTANT: Replace ZNS bolts and self-locking nuts.
Tightening torque and angle of rotation, see 26 11 4AZ under PROPELLER SHAFT. COMPLETE.
Installation note:
- During installation arrows (2) on circumference of flexible disc must point to flange arms (3).
.png)
Fig. 32: Locating Flexible Disc Screws
Installation note: Check centering mount.
Replace damaged CENTERING MOUNT.
IMPORTANT: Plastic centering mount must not be greased.
.png)
Fig. 33: Locating Propeller Shaft Centering Mount
READ NEXT:
Replacing Center Mount Gaiter
Necessary preliminary work
Remove PROPELLER SHAFT.
NOTE: The propeller shaft is balanced.
The front and rear propeller shafts must be reassembled in the same position.
Detach gaiter (1) from groo
Replacing Complete Propeller Shaft Center Bearing
Necessary preliminary work
Remove PROPELLER SHAFT.
NOTE: The propeller shaft is balanced.
The front and rear propeller shafts must be reassembled in the same position.
Detach gaiter (1) from groov
SEE MORE:
Side collision mitigation
Concept
The system helps to avoid imminent side collisions.
General information
Four radar sensors in the bumpers monitor the
space next to the vehicle from a minimum speed
of up to approx. 130 mph/210 km/h.
The minimum speed is country-specific and is
displayed in the menu for the intelligent Sa
Introduction
BMW Steering Systems - Innovative and technically always something special
Since the introduction of the first EPS electric power steering system on the
E85 in 2002, the variety of
technical innovations on steering systems has rapidly expanded. Before then the
following systems were used:
Hydrau
