BMW 1989-1995 525i Service Manual page 306

330-8
REAR SUSP ENSION
r-,-,- -r-....-"c, : :c:. ; v
joint
I
6560SUR.4·9
0006560
Fig. 12. Support CV joint at inner hub (arrow s) during pressing oper-
ation.
NOTE -
To inspect
a
GV joint. clean away the grease and look
for galling , pitting and other signs of wear or physical
damage . Polished interior surfaces or visibfe ball tracks
alone are not necessarity cause for reptecement. Dis-
coloration due to overheating indicates lack of lubrica-
tion. A joint that is otherwise in good condition may be
reinstalled it thoroughly cleaned and repacked with
new grease. Belore reinstalling the joint to the shaft. in-
spect the drive axle and the splines for wear
Of
dam -
age.
6. Place the small clamping band. the boot and the inner
joint cover over the drive axle.
NOTE -
When replacing the GV joint boot. use a complete GV
joint boot repair kit. The kit will include
a
new boot,
clamps. special lubricant. and
a
new inner GV joint cir-
clip. The kit is available from an authorized BMW dealer
parts department.
7. Apply Loctite 270 or an equivalent heavy-d uty locking
compound to the drive axle splines. Positio n the new
CV joint on the shaft so that the hub with the raised or
taller side is facing the shaft. See Fig. 12 above.
WARNING -
Do not let the locking compound contact the balls in
the joint. Apply only a thin coat to cover the splines.
8. Press the shaft into the joint while supporting the inner
hub of the joint. Install the new circlip.
NOTE -
Do not let the ball hub pivot more than 20' in the outer
ring 01 the joint. The balls will fall out
it
the hub is pivot-
ed too far.
TRAILING ARMS
9. Pack each CV joint and rubber boot with the specified
amount of the lubricant supplied in the boot kit. Apply
adhesive to the large end of the boot and mount it on
the joint. Secure the boot with the clamps. Then apply
sealer to the joint end coverts) and install them .
NOTE -
BM W recommends Bostik t5 13 or Epple 485t eone -
sive. and Epple 39 or Guril T sealer.
CV Joint Lubrica nt Capacity
• Each joint 80 gm (2.8 oz.)
TRAILING ARMS
The trailing arms and their mounting bushings control the
position of the rear wheels. A damaged trailing arm or worn
bushings will change the rear wheel alignment and may ad-
versely affect handling and stability.
WARNING -
Do not attempt to straighten a damaged trailing
arm . Bending or heating may weaken the original
part.
The rear brake lines must be disconnected to remove a
trailing arm. This means the complete brake system must be
bled as part of the installation procedure.
NOTE -
On
cars with Automatic Stability Control»Traction
(ASG+ T), special BMW test equipment is required to
properly bleed the brakes. See 340
Brakes
lor addi-
tional information before opening the brake hydraulic
system .
To remove and install trailing arm
1. Raise the rear end of the car and support it securely on
jack stands. Remove the wheel.
2. Remove the outer CV joint from the drive flange as de-
scribed above.
3. Disconnect the rear brake line at the union shown in
Fig. 13. Drain the brake fluid or plug the line.
4. Remove the brake caliper and brake rotor. See 340
Brakes. Disconnect the parking brake cable from the
parking brake actuato r. Unclip the parking brake cable
from the trailing arm.