Rear seat BMW 525i 2001 E39 Owner's Manual

Downloaded from www.Manualslib.com manuals search engine
Rear Suspension
4 Models with coil springs: Working at top of spring, press cen-
ter cap down or pry upward to remove. If pushed down, re-
move from inside coil spring from under car.
4 Working from underneath, position BMW special tool 33 2
301
between 2nd and 3rd spring coil from bottom.
Make sure tool recess faces upward.
Working in cargo compartment, guide BMW special tool 33
2 304
from above and thread into special tool 33 2 301.
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.
- - -
-

Downloaded from www.Manualslib.com manuals search engine
330-24
Rear Suspension
4 Working from underneath, position BMW special tool 33 2
301 between 2nd and 3rd spring coil from bottom.
Make sure tool recess faces upward.
Working in cargo compartment, guide BMW special tool 33
2 304 from above and thread into special tool 33 2 301.
4 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.
4 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
- Support wheel bearing carrier from below.
CAUTION-
The shock absorber prevents the drive axle and wheel bear-
ing carrier from dropping too far. Supporting the wheel bear-
ing carrier before disconnecting the shock absorber
mounting iastenerprevents damage to the brake hose,
parl-
ino brake cable and drive axle CV ioints.
- Models with air shock absorbers: Detach air supply line from
shock absorber. Plug ports and lines to keep out dirt.
- Remove shoclc absorber lower mounting bolt

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
330-30
I Rear Suspension
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.
To install, jack
subframe into position. Install and t~ghten sub-
frame mounting bolts. Note that on each bolt, rubber-coat-
ed detent plate
(arrow) must be installed at rear in driving
direction.
Models
w~th coil springs: Fit springs correctly in lower
spring seats.
Models with air suspension: Fit eccentric lug at bottom of
air
sprlng in recess of wheel carrier spring seat.
Tightening torques
-
Air spring to wheel bearing carrier 20 Nm (1 5 ft-lb)
Rear subframe to body (M12) 163 Nm (120 ft-lb)
-

Downloaded from www.Manualslib.com manuals search engine
330-36
l~ear Suspension
- 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.
- Models with rear coil springs: Remove cargo compartment
floor carpet.
Working at top of coil spring, press center cap down or pry
upward to remove. If pushed down, remove from inside
coii
spring from under car.
< Working from underneath, position BMW special tool 33 2
301
between 2nd and 3rd spring coii from bottom.
Make sure tooi recess faces upward.
Working in cargo compartment, guide
BMW special tooi 33
2 304
from above and thread into special tool 33 2 301.
4 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 sprrng seat on wheel
bearing carrier.

Downloaded from www.Manualslib.com manuals search engine
330-39
I Rear suspension1
- Remainder of installation is reverse of removal, noting the fol-
lowing.
Models with coil springs: Fit spring correctly in lower spring
seat.
* Models with air suspension: Fit eccentric lug at bottom of
air spring in recess of wheel carrier spring seat.
Always use new self-locking nuts.
- Make sure all threaded bolts, nuts and mating surfaces are
clean.
a Tighten fasteners to final torque only after vehicle has
been lowered and suspension has settled.
Stake axle collar nut afler tightening.
Tightening torques
ABS pulse sensor to wheel bearing 8 Nm (6
ft-lb)
carrier
Air spring to wheel bearing carrier 20 Nm (15 ft-lb)
Brake rotor to hub 16 Nm (12
it-lb)
Rear axle shaft to hub (M27) 300 Nm (221 ft-lb)
Rear brake pad carrier (caliper) to wheel 65 Nm (48 ft-lb)
bearing carrier
Road wheel to hub
120ilONm
(89 k7 ft-lb)
Swing arm to wheel bearing carrier 256 Nm (189 it-lb)
Upperfrontcontrol arm (traction strut) to 65 Nm (48 ft-lb)
wheel carrier
Upper rear control arm to wheel carrier 142 Nm (105 ft-lb)
Rear wheel bearing, replacing
< The rear wheel bearing is integrated with its mounting flange.
1. Torx bolt
2. Wheel bearing and mounting flange
3. Wheel hub
4. Collar nut
- Raise rear end of car and remove wheel.
WARNING -
Make sure the car is firmly supported on jaclc stands de-
signed for the purpose. Place jack stands underneath struc-
tural chassis points. Do not place jack stands under
suspension parts.

Downloaded from www.Manualslib.com manuals search engine
Final Drive
Front final drive mount
4 Remove front final drive mount using BMW special tools 33
3312,333314, 333315,334161
and334162.
I i 4 Coat bearing sleeve in rear axle carrier and rubber mount
with
~ircolight~ anti-friction agent.
Slide rubber mount from side with large diameter into
BMW special tool 33
4 165.
Milled recess
(A) makes firm contact with rear axle carrier
when top rubber mount is tightened down.
The
slolled srde ot r11e rubber mounl must be ar r#ghl angles
lo
rhe groove rn specal roo/ 33 '1 165 and shoulo be lrghrened
I down ~ransversely across the vehicle axis. I
Draw rubber mount in firmly with BMW special tools 33 3
314,333315,334164,334165and334166.
NOTE-
Male sure special tool 33 4 166 is properly seated.
0 Rubber mount must locate flush in rear axle carrier. If nec-
essary, rotate special tool
33 4 164 through 90" and draw
in overlap.
- Remainder of installation is reverse of removal

Downloaded from www.Manualslib.com manuals search engine
340-23
Brakes
- Using flat-bladed screwdriver, reach into brake drum through
lug bolt hole. Turn brake adjuster until wheel no longer turns.
Back adjuster off
12 notches.
Parking brake adjusting (initial)
Back
off adjuster through wheel
lug bolt hole 12 notches
- Working inside car, set parking brake several times to seat
cable. Then pull parking brake
lever up two notches. Tighten
cable adjusting nuts until it is just possible to turn rear wheels
with slight resistance.
- Release lever and make sure rear wheels turn freely
- Turn on ignition. Pull up parlting brake lever 1 notch and
make sure that parking bralte warning light comes on. if not,
adjust parking bralte warning light contact switch.
- Install parking brake lever boot. Install road wheel lug bolts.
Tightening torque Road
wheel to hub 120 i. 10 Nrn (89 i- 7 ft-lb)
Parking brake shoes, removing and
installing
- Raise rear of car and remove road wheels.
WARNING-
Make sure that the car is firmly supported on jack stands de-
signed for
the purpose. Place jack stands beneath structural
chassis points. Do not place
jaclc stands under suspension
parts.
- Without disconnecting brake fluid hose, remove rear bralte
calipers from trailing arms. Remove rear brake rotors as de-
scribed earlier.
CAUTION-
Do not let the brake caliper assembly hang from the brake
hose. Support caliper from chassis with strong wire.
4 Unhook return sprlngs (arrows) from brake shoes

Downloaded from www.Manualslib.com manuals search engine
4 Disconnect and remove speed sensor electrical harness (ar-
row) from retaining mounts. (Lefl front wheel shown).
- During installation, apply thin coat of StaburagsBNBU 12/K
or equivalent grease to speed sensor and housing.
- Installation is reverse of removal.
Tightening torque
ABS wheel speed sensor to steering knuckle or 8 Nm (6 It-lb)
rear wheel bearing carrier
ABS impulse wheel
The front and rear impulse wheels are integral with the inner
wheel bearing seal and not available as separate part. See
310 Front Suspension or 330 Rear Suspension for wheel
bearing replacement procedures.
DSC lateral acceleration or rotational rate
(yaw) sensor, replacing
DSC system on 1998 cars (Bosch DSC Ill v. 5.3): Lateral ac-
celeration sensor and rotational rate (yaw) sensor are sepa-
rate units, both mounted underneath or in front of driver's
seat.
DSC system on 1999 and later cars (Bosch DSC
Ill v. 5.7):
Lateral acceleration sensor and rotational rate (yaw) sensor
are combined into one unit, located under driver's seat.
- Remove driver's seat. See 520 Seats.
- Lateral acceleration sensor (1 998 models): Remove lower
lefl door pillar trim (driver's
kick panel) to access sensor. Pull
up carpet as necessary to reach sensor harness connector
or fasteners.
4 Rotational rate (yaw) sensor (1998 models): Remove plastic
trim at door sill to access sensor (arrow). Pull up carpet and
move insulation forward as necessary to reach sensor har-
ness connector or fasteners.
- Combined lateral acceleration / rotational rate (yaw) sensor
(1 999 and later models): Remove plastic trim at door sill to
access sensor. Pull up carpet and move insulation forward as
necessary to reach sensor harness connector or fasteners.
- Disconnect electrical harness connector at sensor.
- Combined sensor (1 999 and later models): Remove sensor
bracket mounting screws.