sensor BMW 525i 2000 E39 Workshop Manual

Downloaded from www.Manualslib.com manuals search engine
--- .-
Rear ~us~ensionl
Remove fasteners A, B and C while supporting swing arm
from below.
Carefully pry swing arm away from mounting points, while
continuing to support from below.
Remainder of installation is reverse of removal, noting the fol-
lowing:
Use new self-locking nuts.
lnstall bolt
(C) through bracket and arm. Install and tighten
nut finger tight.
Install bolts
(A) and (6). Install and tighten nuts finger tight.
Line up eccentric camber adjusting bolt with marlts made
previously.
Tighten fasteners to final torque only after vehicle has
been lowered and suspension has settled.
Have car professionally aligned when job is complete.
Tightening torques
ABS pulse sensor to wheel bearing carrier 8 Nm (6 ft-lb)
Road wheel to hub
120+10 Nm
(89
i-7 ft-lb)
Stabilizer link to swing arm 65
Nm (48 ft-lb)
Swing arm to rear
subframe
(camber bolt M12) (A)
115 Nm (85 ft-lb)
Swing arm to rear
subframe (B) 58 Nm (43 ft-lb)
Swing arm
to wheel bearing carrier (C) 256 Nm (189 ft-lb)

Downloaded from www.Manualslib.com manuals search engine
Rear ~us~ensionl
Working in cargo compartment, attach BMW special tools
33 2 302,33 2 303 and 33 2 305 to special tool 33 2 304.
Use special tool 33 2 306 to compress spring.
Tighten until lower spring coil lifts off spring seat on wheel
bearing carrier.
- Disconnect control rod for ride height sensor if applicable.
4 Remove ABS pulse sensor (arrow) from wheel bearing car-
rier.
- Support wheel bearing carrier from below.
CAUTION-
The shock absorberprevents the drive axle and wheel bear-
ing carrier from dropping too far. Supporting the wheel bear-
ing carrier before disconnecting the shock absorber
mounting fastenerprevents damage to the
brake hose, park-
ing brake cable and drive axle
CVjoints.
- Remove shock absorber lower mounting bolt
4 Remove stabilizer bar link mounting nut (arrow). Press link
out of swing arm.
4 Mark location (arrow) of rear camber adjustment washer and
bolt.
NOTE -
Rear camber is adjusted at the inner swing arm eccentric
rear mounting bolt.

Downloaded from www.Manualslib.com manuals search engine
--. -
Rear Suspension
Remove fasteners A. B and C while supporting swing arm
from below.
Carefully pry swing arm away from mounting points, while
continuing to support from below.
Remainder of installation is reverse of removal, noting the fol-
lowing:
Use new self-locking nuts.
Install bolt
(C) through bracket and arm. Install and tighten
nut finger tight.
lnstall bolts (A) and
(6). Install and tighten nuts finger tight.
Line up eccentric camber adjusting bolt with rnarlts made
previously.
Make sure long lower shock absorber bushing fits in hole
in swing arm.
Tighten fasteners to final torque only afler vehicle has
been lowered and suspension has settled.
Have car professionally aligned when job is complete.
Tightening
torques
ABS pulse sensor to wheel bearing 8 Nm (6 It-lb)
carrier
Quiclc coupling screw to air shock 2 Nm (18 in-lb)
absorber
Road wheel to hub 120
210 Nm (89i-7 It-ib)
Shocic absorber
to lower control arm 127 Nm (94
ft-lb)
Stabilizer link to swing arm
65 Nm (48 ft-ib)
Swing arm to rear
subframe (camber 11 5 Nm (85 It-lb)
bolt M12) (A)
Swing arm to rear subframe (6) 58 Nm (43 It-lb)
Swing arm to wheel bearing carrier 256
Nm (189 It-lb)
(C)

Downloaded from www.Manualslib.com manuals search engine
330-26
/ Rear Suspension
Remove inner control arm eccentric nut and bolt (A)
Remove control arm ball joint nut (6). Press ball joint out
of wheel bearing carrier.
Lifl out control arm.
Installation is reverse of removal, noting the following:
Use previously made
marks to install eccentric bolt and
nut.
Always use new self-locking nuts.
Tighten fasteners to final torque only after vehicle has
been lowered and suspension has settled.
0 Have car professionally aligned when job is complete.
Tightening
torques
Road wheel to hub 120klONm
(89 i7 ft-lb)
Upper front control arm (traction strut) to 60
Nm (44
ft-lb)
subframe (rear toe adjusting bolt)
Upper front control arm (traction strut) to wheel
65 Nm (48 ft-lb)
carrier
Rear axle assembly, removing and
installing (sedan models)
In case of damage to the subframe, or if a pressed-in bushing
is worn, remove
subframe by removing complete axle assem-
bly.
- Raise car and remove rear wheels.
WARNING-
Make sure the car is firmly supported on jack stands de-
signed for the purpose. Place jack stands underneath struc-
tural chassis points. Do not place
jack stands under
suspension parts.
- Remove exhaust system. See 180 Exhaust System
- Detach driveshaft from differential. See 260 Driveshaft.
- Remove brake caliper and brake disc. Hang brake caliper
aside with stiff wire. Do not disconnect brake fluid hose. See
340 Brakes.
- Remove lefl and right ABS sensors from wheel bearing car-
riers.
- Disconnect parking brake cable from brake shoe expander.
See 340 Brakes.
- Remove heat shield from above driveshaft.

Downloaded from www.Manualslib.com manuals search engine
330-27
Rear ~uspensionl
- If equipped, remove ride height sensor connectors.
Support final drive unit from below using transmission jack
(BMW special tools 00
2 030 and 33 4 390 or equivalent).
NOTE-
Special tool 33 4 390 will need modifications to cradle the ii-
nal drive properly.
4 Remove right and left suspension trim panels (arrow)
4 Remove right and left lower strut mount bolts (arrow)
Remove rear suspension
subframe by removing 4 mounting
bolts (arrows).
Carefully lower rear suspension
subframe away from body to
remove.

Downloaded from www.Manualslib.com manuals search engine
330-28
Rear Suspension
4 To install, jack subframe into position. Install and tighten sub-
frame mounting bolts. Note that on each bolt, rubber-coat-
ed detent plate
(arrow) must be installed at rear in driving
direction.
Tightening torques
Rear
subframe to body (M12) 163 Nm (120 ft-lb)
- Remainder of installation is reverse of removal, noting the fol-
lowing.
Make sure long lower strut bushing fits in hole in wheel
bearing carrier.
111 0 Tighten suspension arm and shoclc absorber fasteners to
502330036 final torque only afler vehicle has been lowered and sus-
pension has settled.
Have car professionally aligned when job is complete
Tightening torques
ABS pulse sensor to wheel bearing carrier 8 Nrn (6 ft-lb)
Brake rotor to hub
16 Nm (12 ft-lb)
Driveshaft
CV joint to final drive flange
- MI0 (Tow bolts) 70 Nm (51 ft-lb)
MB (compression nut) 32
Nm (24 ft-lb)
Rear brake pad
carrler (caliper) to wheel 65 Nm (48 ft-lb)
bear~ng carrler
Rear strut to
wheel bearlng carrler 127 Nm (94 ft-lb)
Road wheel to hub
120210Nrn
(89 57 ft-lb)
Rear axle assembly, removing and
installing (Sport Wagon models)
Incaseof damage to thesubframe, or if apressed-in bushing is
worn, remove
subframe by removing complete axle assembly.
In Sport Wagon models with conventional coil spring, lower
subframe slowly, making sure rear springs stay on spring
seats.
In models with air suspension
(EHC), disable the air supply
pump, deflate the air springs and disconnect them from the
wheel carriers before lowering the subframe.
- Raise car and remove rear wheels.
WARNING-

Downloaded from www.Manualslib.com manuals search engine
Rear Suspension
- Remove exhaust system. See 180 Exhaust System.
- Detach driveshaft from differential. See 260 Driveshaft.
- Remove brake caliper and brake disc. Hang brake caliper
aside with stiff wire. Do not disconnect brake fluid hose. See
340 Brakes.
- Remove left and right ABS sensors from wheel bearing car-
riers.
Disconnect parking brake cable from brake shoe expander.
See 340 Brakes.
Remove heat shield from above driveshaft
If equipped, remove ride height sensor connectors
CAUTION-
Models with air springs: Disable air supply pump by discon-
necting electrical plug before performing any repairs. Pump is
locatedbeneath a coverunder
thespare tire in the floorof the
carqo compartment.
Models with air springs: Loosen compressed air pipes (ar-
rows) at air distribution assembly to release system pres-
sure.
WARNING -
Vehicle will lower when the air pipes are opened. 1
- Working underneath rear suspension, lift wheel bearing car-
rier to relieve rear spring tension. Then unbolt air spring
mounting bolt from seat on wheel bearing carrier.
4 Support final drive unit from below using transmission jack
(BMW special tools 00 2 030 and 33 4 390 or equivalent).
NOTE-
Special tool 33 4 390 will need modifications to cradle the fi-
nal drive properly
4 Remove right and left suspension trim panels (arrow),

Downloaded from www.Manualslib.com manuals search engine
Rear Suspension
- Remainder of installation is reverse of removal, noting the fol-
lowing.
Tighten suspension arm and shock absorber fasteners to
final torque only afler vehicle has been lowered and sus-
pension has settled.
Tightening torques
ABS pulse sensor to wheel bearing carrier 8
Nrn (6 ft-lb)
Air line connection 2 Nrn (18 in-lb)
Brake rotor to hub 16
Nrn (12 ft-lb)
Driveshaft
CV joint to final drive flange
- MI0 (Torx bolts) 70
Nrn (51 ft-lb)
- MB (compression nut) 32 Nrn (24 ft-lb)
Rear
brake pad carrier (caliper) to wheel 65
Nrn (48 ft-lb)
bearing carrier
Road wheel to hub
120ilO Nrn
(89 i-7 ft-lb)
Rear subframe mounting bushings,
removing and installing
- Remove rear subframe mounting bolts as described earlier.
Lower
subframe approximately 40 - 45 mm (1 -2 in).
4 Install BMW special tools 33 4 140,33 4 151,33 4 154,33 4
155,33 4 156 as shown.
Use hot air gun with a maximum output temperature of
600°C (1100" F) to heat bushing area of subframe for no
more than
2 minutes. Remove rubber mount from sub-
frame.
CAUTION-
Aluminum suspension parts may be severely damaged
witli intense heat
* Heating for 2 minutes with the recommended heat
source is intended to
keep the temperature of the alu-
minum
parts below the safety threshold of 80°C
(1 76°F). .

Downloaded from www.Manualslib.com manuals search engine
330-33
Rear ~us~ension/
4 Remove ABS sensor mounting fastener (arrow) and sensor.
4 Remove outer swing arm nut (arrow) and bolt
4 Press out axle shaft using BMW special tools 33 2 117,
332116and332lll.
- Support wheel bearing carrier. Remove lower strut mounting
fastener.

Downloaded from www.Manualslib.com manuals search engine
330-35
Rear Suspension
- Remainder of installation is reverse of removal, noting the fol-
lowing.
Always use new self-loclting nuts.
Make sure all threaded bolts, nuts and mating suriaces are
clean.
Make sure long lower strut bushing fits in hole in wheel
bearing carrier.
Tighten fasteners to final torque only after vehicle has
been lowered and suspension has settled.
Stake axle collar nut after tightening.
Tightening torques
ABS pulse sensor to wheel bearing carrier
8 Nm (6 ft-lb)
Brake rotor to hub 16 Nm (12 ft-lb)
Rear brake pad carrier (caliper) to wheel 65
Nm (48
ft-lb)
bearing carrier
Rear axle shaft to hub
(M27) 300 Nm (221 ft-lb)
Rear strut to wheel bearing carrier 127
Nrn (94 ft-lb)
Road wheel to hub
120+10 Nm
(89
i7 ft-lb)
Swing arm to wheel bearing carrier 256
Nrn (189 ft-lb)
Upper front control arm (traction strut) to 65 Nrn
(48
ft-lb)
wheel carrier
Upper rear control arm to wheel carrier 142
Nrn (105
ft-lb)
Rear wheel bearing carrier, removing and
installing (Sport Wagon models)
- Raise rear end of car and remove wheel.
WARNING-
Make sure the car is firmly supported on jack stands de-
signed for the purpose. Place jack stands underneath struc-
tural chassis points. Do not place jack stands under
suspension parts.
Models
with air springs: Disable air supply pump by discon-
necting electricalplug
beforepedormingany repairs. Pump is
located beneath a cover under the spare tire in the floor of the
cargo compartment.
-- 4 Models with air springs: Loosen compressed air pipes (ar-
rows) at air distribution assembly to release system pres-