BMW 1989-1995 525i Service Manual page 302

330-4
R EAR SUSPENSION
11 . On LAD-equipped cars install the hydraulic fluid line to
the strut.
Tightening Torque
• Hydraulic fluid line to
strut assembly 14 Nm
(1 0
ft-Ib)
12. Install the road wheel and lower the car. Load the car
to the normal loaded position as described in Ride
Height. Tighten the lower strut mounting bo lt.
Tightening Torques
• Strut assembly to trailing arm
(car in normal loaded position). .. . . 127 Nm (94 ft-Ib)
• Road wheel to hub 100±10 Nm (74+7 ft-Ib)
13. On LAD-equipped cars fill and bleed the LAD system
as described below under Self-levelling Suspension
(LAD).
14. The remainder of installation is the reverse of removal.
Cover
0
Locknut - -_ _.
~
Washer
~
Mountong - -
~~
nut
~
Gasket
Upper
mount
Upper
rubber
spring
----- ~:::::==~'1
pad
Cen tering
washer
~--
Rubber
bump - - -
f:::::::::1
stop
Call
spring
Lower
rubber
spring
pad
Shock
absorber
To disassemble and assemble strut
Replacing the upper strut mount. spring. and strut cartridge
requires that the strut first be disassembled. This procedure
requires a spring comp ressor specifically designed for the
purpose. Fig. 5 shows the rear strut assembly.
WARNING -
Do not attempt to disassemble the stru ts without
a
spring compressor designed specifically for this job
1. Remove the strut assembly from the car as described
above .
Protective _
---
tube
I
_J
Washer
0011240
2. Using a spring compressor. compress the spring until
the spring force on the upper mount is relieved.
WARNING -
Make sure the spring compressor grabs the spring
properly before compressing it.
3. Pry the protective cap off the top of the strut assembly.
then remove the top (center) nut and washer.
4. Release the spring compressor carefu lly and even ly.
allowing the spring to slowly expand.
5. Remove the spring from the shock absorbe r.
SHOCK ABSORBERS AND SPRINGS
Fig . 5. Exploded view 01 rear strut assembly.
NOTE -
Store the removed shock absorber upright. Do not st-
low it to lay horizontally or uosiae-aow« for any length
of lime. " incorrect storage has occurred. place the
shock absorber upright with the rod fully extended for
at least 24 hours.
6. Compress the spring and install it and related compo -
nents to the shock absorber, using Fig. 5 as a guide.
Use a new self-locking top (center) nut.
WARNING-
Make sure the self·locking top nut is fully tightened
belore releasing the spring compressor.