2001 BMW 530i subframe

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L.. Steering and Wheel ~li~nrnentl ~
4 Mark A on steering gearbox shaft must be located in center
of
pitman arm slot.
- Adjust pitman arm as described later.
I 5"?~~5~"
I / < Gap A = 0.5 - 8.5 mm (0.02 - 0.33 in)
- Tighten pitman arm pinch bolt to specification.
' 1 Tightening torques
I u "steering Steering gearbox to subframe 62 Nm (46 ft-lb)
box Steering shaft universal joint to steering 19 Nm (14 It-lb)
gearbox (replace bolt)
- Install center tie rod to pitman arm using a new self locking
Pilrnan nut. arm
5nz3zn588 - Connect harness connector for Servotronic electro-hydraulic
regulator
if necessary.
- Connect fluid hoses to steering gearbox. Use new sealing
washers at couplings and make sure not to overtorque banjo
bolts.
Tightening torques Hydraulic lines to steering gearbox (banjo bolts)
MI0 12 Nm (9 ft-lb)
- M14 35 Nm (26 ft-lb)
. M16 40 Nm (30 ft-lb)
MI8 45 Nm (33 it-lb)
Center tie rod to pitrnan arm 65 Nm (48 it-lb)
(use new self-loclting nut)
- Reconnect negative (-) battery cable.
- lnstall airbag unit. See 721 Airbag System (SRS).
- Fill and bleed power steering system as described earlier.

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I Steering and Wheel Alignment
I I 4 Gap A = 0.5 - 8.5 mm (0.02 - 0.33 in)
- Reinstall inner control arm bolts
Tightening torques
Control arm to
subframe 78 Nm (58 it-lb)
(tighten with wheel on ground)
Pitman arm pinch bolt (note direction of threads) 61 Nm (45 ft-lb)
Steering idler arm, removing and installing
The idler arm is bolted to the subframe through a bushing.
The bushing is subject to wear and is available as a replace-
ment part.
- Raise front of car. Remove splash shield from under engine.
WARNING -
Male sure the car is firmly supported on jaclc stands de-
signed for the purpose. Place jack stands beneath structural
chassis points. Do not place jack stands under suspension
parts.
4 Remove center tie rod fastener and press tie rod out of idler
arm with
BMW special tool 32 1 190.
- Remove idler arm mounting bolt through opening in sub-
frame and remove idler arm from car.
- Installation is reverse of removal.
Make sure all thread bores, bolts, nuts and mating surfac-
es are clean.
Use new self
loclting nuts to mount idler arm to subframe
and center tie rod to idler arm.
If idler arm or idler arm bushing is replaced, adjust
pitman
arm as described earlier.
Have car professionally aligned.
Tightening torques
Center tie rod to idler arm 65 Nm (48 ft-ib)
(replace self-locking nut)
Idler arm to front subirame
(replace self-locking nut) 62
Nm (46 it-lb)

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320-31
Steering and Wheel ~li~nrnentl
ldler arm bushing, replacing
- Remove idler arm as described earlier.
< Press out bushing. Use BMW special tools 32 1 050 and 32
2 032 or equivalent press fittings.
4 Press in new bushing with BMW special tools 33 1 305 and
32 2 032 or equivalent press fittings.
4 Press new bushing in correct direction (arrow).
u ..... "A",
Press bushing in until lip makes firm contact (A) with idler
arm.
I
Installation is the reverse of removal
Use new self locking nuts to mount idler arm to
subframe
and traclc arm.
a Adjust pitman arm height as described earlier.
Have vehicle professionally aligned.
Tightening torques Center tie rod to idler arm
65 Nm (48 ft-lb)
;nl?mmn / (replace self-locking nut)
ldler arm to front
subframe
(replace sell-locking nut) 62
Nm (46 ft-lb)

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330 Rear Suspension
General . . . . . . . . . . . . . . . . . . . . . . . . . . . ,330-2
Special tools . . . . . . . . . . . . . . . . . . . . . . . . ,330-2
Rear suspension variations . . . . . . . . . . . . ,330-4
Rear Struts and Springs
(sedan models)
. . . . . . . . . . . . . . . . . . . . ,330-5
Rear strut assembly, removing
and installing
. . . . . . . . . . . . . . . . . . . . . . . ,330-5
Rear strut assembly, disassembling
and assembling
. . . . . . . . . . . . . . . . . . . . . ,330-7
Rear Shock Absorbers and
Springs (Sport Wagon models)
. . . . . ,330-9
Rear shock absorber, removing
and installing
. . . . . . . . . . . . . . . . . . . . . . . ,330-9
Coil spring, removing and installing . . . . . ,330-1 1
Air spring, removing and installing
. . . . . . ,330-12
Rear Suspension Arms,
Subframe and Bushings . . . . . . . . . . ,330-13
Rear suspension arm components . . . . . . ,330-1 3
Swing arm, removing and installing (sedan models)
. . . . . . . . . . . . . . . . . . . . . ,330-1 4
Swing arm, removing and installing (Sport Wagon models)
. . . . . . . . . . . . . . . ,330-16
Swing arm ball joint, replacing . . . . . . . . . ,330-1 9
Upper rear control arm, removing
and installing (sedan models)
. . . . . . . . . . .330-22
Upper rear control arm, removing
and installing (Sport Wagon models)
. . . . .330-23
Upper front control arm (traction strut),
removing and installing
. . . . . . . . . . . . . . . ,330-25
Rear axle assembly, removing and
installing (sedan models)
. . . . . . . . . . . . . ,330-26
Rear axle assembly, removing and
installing (Sport Wagon models)
. . . . . . . ,330-28
Rear subframe mounting bushings,
removing and installing
. . . . . . . . . . . . . . . .330-31
Rear Wheel Bearings . . . . . . . . . . .
Rear wheel bearing carrier, removing
and installing (sedan models)
. . . . . . .
Rear wheel bearing carrier, removing
and installing (Sport Wagon models)
. .
Rear wheel bearing, replacing . . . . . . .
Rear Stabilizer Bar
Stabilizer bar, removing and installing .
Stabilizer bar link, removing
and installing
. . . . . . . . . . . . . . . . . . . .
Electronic Height Control (EHC)
Component Replacement
. . . . . . .
Electronic height control (EHC)
components
.....................
Air compressor pump relay, removing
and installing
. . . . . . . . . . . . . . . . . . . .
EHC control module, removing
and installing
. . . . . . . . . . . . . . . . . . . .
Air supply unit, removing and installing
Ride height sensor, removing
and installing
. . . . . . . . . . . . . . . . . . . .

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Rear suspension/
31 3 333 "I Rubber bushing removal tool set
(Tool No. BMW
33 3 331,33 3 332,33 3 333,33 3 334)
4 Subframe mount removal set
(ToolNo.BMW334 140,334148,334149,334151,334
155.33 4 156)
4 Subirame mount tool set
(Tool
No.BMW334151,34140,334155,334154)
4 Rear wheel bearing carrier mount tool set
(ToolNo.BMW334151,334152,334153,334154,334
156,334157)
4 Subframe mount installation set
(Tool No. BMW
33 4 153,33 4 155,33 4 156,33 4 157)
Slide hammer set
(Tool No. BMW
33 4 201,33 4 202,33 4 203)
13 4 201

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330-4
Rear Suspension Rear suspension variations
1. Coil spring
2. Strut
3. Final drive (differential)
4. Rear subframe
5. Upper rear control arm
(wishbone)
6. Subframe mounting bushing
7. Drive axle
8. Upper front control arm
(traction strut)
9. Swing arm (lower control arm)
10. Integral link
12. Air spring
I
Waaon
11. Shockabsorber
a m3 withair s~riias

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330-1 0
/Rear Suspension
- Remove rubber protective cap from shock absorber upper
mount.
- Remove shock absorber upper mounting nuts.
- Remove shock absorber lower mounting bolt. Lower shock
absorber out of wheel housing.
< Transfer shock top mounting plate, dust cover (if applicable)
and related components to new shoclc absorber.
1. Self-locking nut
2. Washer
3. Upper siioclc absorber mount
4. Rubber bumper seat
5. Rubber bumper
6. Dust boot
7. Shock absorber
8. Long lower bushing
Tightening torques
Shock absorber to upper mount
27 Nm (20 it-lb)
(M14, replace self-locking nut)
- Installation on car is reverse of removal, noting the following:
Make sure all threaded bolts, nuts and mating surfaces are
clean.
Install shock absorber upper mount to
subframe using new
self-locking nuts.
. Make sure long lower shock absorber bushing fits in hole
in suspension swing arm.
Tighten lower shoclc absorber bolt to its final torque once
car is on ground.
Tightening torques
Quick coupling screw to air 2 Nm (18 in-lb)
shock absorber
Road wheel to
hub 120 &I0 Nm (89 -f7 ft-lb)
Shock absorber to swing arm 127 Nm (94 ft-lb)
Strut mount to body
Gray fasteners
Yellow fasteners
24 Nm ( 18 it-lb)

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330-1 1
Rear Suspension
Coil spring, removing and installing
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 brake caliper and brake disc. Hang brake caliper
aside with stiff wire. Do not disconnect
bralte fluid hose. See
340 Brakes.
- Remove exhaust system. See 180 Exhaust System.
- Disconnect driveshafl from final drive. See 260 Driveshaft.
- Detach parking bralte cables from mounting bracltets on sub-
frame.
< Support final drive unit from below using transmission jack
and
BMW special tool 33 4 390 or equivalent.
Remove rear suspension
subframe mounting bolts (arrows).
Lower rear
subframe until coil springs can be removed.
When reinstalling springs, replace upper and lower spring
pads if necessary.
Slowly lift suspension
back into position, making sure coil
springs are correctly seated in upper and lower spring seats.
Install and tighten
subframe mounting bolts. Note that on
each bolt, rubber-coated detent plate (arrow) must be in-
stalled at rear in driving direction
- Remainder of installation is reverse of removal
Tightening torques Road wheel
to hub 12OilO Nm (89i-7 ft-lb)
Subframe to body 163 Nm (120 ft-lb)