2000 BMW 540i Bolt Torque

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260-1 2
1 Driveshaft
Install new flex-disc using new self-locking nuts. Molded ar-
rows (arrows) on coupling should point towards flange arms.
4 On vehicles with aluminum driveshaft, use coated washers to
prevent contact corrosion.
- Counterhold bolts while tightening nuts.
Tightening torque
Aluminum driveshaft to flex-disc
M12 (use coated washers) 90
Nm (66 ft-lb)
Steel driveshaft to flex-disc
MI0 (8.8 grade) 48
Nm (35 ft-lb)
- MI0 (10.9 grade) 60 Nm (44 ft-lb)
Coated washers - MI2 (8.8 grade) 5027500 . Mi2 (10.9 grade)
M14 81
Nm (60 ft-lb) 100 Nm (74 ft-lb)
140 Nm (103 ft-lb)
- Install driveshaft as described earlier
Center bearing assembly, replacing
The center bearing assembly consists of a grooved ball bear-
ing in a rubber mount. The bearing assembly is pressed
the driveshaft.
- Remove driveshaft. See Driveshaft, removing
- Matchmark front and rear driveshaft sections before
separating.
Remove bolt (arrow) securing front and rear halves of
driveshaft and pull driveshaft apart.
- Remove shim and dust shield, where fitted
- Use puller to remove center bearing assembly from
driveshaft. onto

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- On installation, drive new center bearing firmly to stop.
Reassemble driveshaft using matchmarks made prior to
disassembly.
- Clean threads and install bolt securing driveshaft halves.
Use thread locking compound
LoctiteO or equivalent.
Tightening torque Driveshaft front half to rear half
(use thread locking compound) 97
Nm (72 fl-lb)
- Install driveshaft as described earlier.
Front centering guide, replacing
The front centering guide centers the driveshafl in relation to
the transmission. The guide is press-fit into a cavity in the
front of the driveshafl and slides onto the transmission output
shaft.
No specifications are given
forwear of the guide, but general-
ly the guide should fit snugly on the transmission output shafl.
NOTE-
Some driveshafts have a dust cap installed on the end of the
driveshaft, over the centering guide. The dust cap may be-
come bent or distorted when the driveshaft is removed or
in-
stalled. Damage to the dust cap should not affect the
centering guide and should not be mistaken for guide wear.
- Remove driveshafl as described earlier
- Pack cavity behind centering guide with heavy grease until
grease is flush with bottom edge of guide.
- Insert 14 mm (approximately 9/16 in.) diameter mandrel or
metal rod into guide. Strike guide with hammer to force cen-
tering guide out.
NOTE-
Tlie mandrel should fit snugly in the centering guide so that
the grease cannot escape around the sides of the mandrel.
- Remove old grease from driveshaft, lubricate new centering
guide with molybdenum disulfide grease
(MolykoteO, Long-
term8 2 or equivalent) and drive it into driveshaft.
4 When installing new driveshafl centering guide, be sure seal-
ing lip of guide faces outward. Drive guide into driveshaft to
a protrusion depth of
4 - 6mm (0.16 - 0.24 in.).
- Install driveshaft as described earlier.

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31 0-8
Front Suspension
Slide strut assembly out of steering lknucltle pinch collar. If
necessary use pry bar.
CA UTIOI\C
Do notpullstrut out of steering knuckle with twisting motion.
This can scratch and damage the strut.
Disassemble and reassemble strut assembly as described
later.
When installing new strut, be sure to align locator letter (A)
on strut body with slot in steering
lknuckle pinch collar (6).
Struts are marked with L for left and R for right.
Remainder of installation is reverse of removal.
Make sure strut shoulder (below locator letter) bottoms out
in steering knuckle pinch collar.
Use new self-locking nuts and bolts.
When attaching stabilizer
lrnk to strut, use a thin wrench to
counterhold
link ball joint while t~ghtening nut.
- Have car professionally al~gned when job IS complete.
Tightening torques
Brake caliper to steering knuckle
110 Nm (81 ft-ib)
Road wheel to hub 120 ti0 Nm (89 t7 ft-lb)
Stabilizer bar
link to strut 65 Nm (48 It-lb)
Steering knucltle pinch bolt at strut 81 Nm (60 It-lb) - mountlng collar
Steering tle rod to steerlng knuckle 65 Nm (48 it-lb)
Strut assembly top to strut tower 24 Nm (18 it-lb)
- - -

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Front Suspension
< Use BMW special tool 31 2 240 or equivalent to separate
control arm ball joint from steering ltnuckle.
- When installing control arm, make sure all thread bores.
bolts, nuts and mating surfaces are clean.
- Install bushing end of control arm to subframe, using wash-
ers on both sides of bolt and a new self-locking nut. Do not
tighten nut at this time.
- Install control arm ball joint to steering lknucltle using a new
self-locking nut. Tighten fully.
- Install wheel and lower car.
- Load car to normal loaded position as described under Ride
height. See
300 Suspension, Steering and Brakes-Gen-
eral. Bounce suspension a few times.
- With car on ground and loaded, tighten control arm bushing
through-bolt.
Tightening torques
Control arm to steering ltnuckle
80 Nm (59 ft-lb)
Control arm to subframe 110 Nm (81 It-lb)
Road wheel to hub 120ilO Nm (8957 it-lb)
Control arm, removing and installing
(V-8 models)
- Raise car and remove wheel
WARNING-
Make sure that the car is firmly supported on jack stands de-
signed for the purpose. Place jack stands underneath struc-
tural
cliassis points. Do not place jack stands under
suspension parts.
Loosen and remove stabilizer bar link mounting nut
(A) while
counterholding ball joint
(B). Disconnect stabilizer link from
stabilizer bar.
- Cars equipped with vertical headlight adjustment system:
Disconnect control arm from level sensor.

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310-1 5
Front ~us~ension/
4 Remove control arm fasteners (arrows). Lightly tap inner
control arm mounting bolt out of subframe.
Use
BMW special tool 31 2 240 or equivalent to separate ball
joint from steering knuckle.
When installing control arm, make sure all thread bores,
bolts, nuts and mating surfaces are clean.
lnstall bushing end of control arm to subframe, using wash-
ers on both sides of bolt and a new self-loclting nut. Do not
tighten nut at this time.
lnstall control arm ball joint to steering knuckle, using new
self-locking nut. Tighten fully.
- Slide strut back into position and tighten strut pinch bolt fully.
- Install wheel and lower car.
- Load car to normal loaded position as described under Ride
height. See
300 Suspension, Steering and Brakes-Gen-
eral. Bounce suspension a few times.
- With car on ground and loaded, tighten control arm bushing
through-bolt.
Tightening torques
Control arm to steering knuckle 80 Nm
(59 ft-lb)
Control arm to
subframe 78 Nm (58 ft-lb)
Road wheel to hub
120
f 10 Nm (89 +7 ft-lb)
Stabilizer bar
link to stabilizer bar
59 Nm (44 fl-lb)
Strut pinch bolt
81 Nm (60 it-lb)

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31 0-1 7
Front ~uspensionl
< Spread steering knuckle pinch collar with BMW special tool
31 2 200 to release strut tube.
- Pull steering knuckle down so strut tube slides up farenough
to gain better access to tension strut or tension strut nut.
4 Unscrew ball joint nut (arrow) from steering knuckle. Use
BMW special tool
31 2 240 to remove ball joint from steering
Iknucltle.
CAUTION--
Tale care not to damage the balljoint threads if the tension
strut
is to be reused.
- Remove through-bolt attaching tension strut to subframe.
- When installing tension strut, make sure all thread bores,
bolts, nuts and mating
suriaces are clean.
- Install bushing end of tension strut to subframe using wash-
ers on both sides of bolt and a new self-locking nut. Do not
tighten nut at this time.
- Install tension strut ball joint to steering knuckle using new
self-locking nut. Tighten fully.
- Slide strut back into position and tighten strut pinch bolt fully.
- Install wheel and lower car.
- Load car to normal loaded position as described under Ride
height. See
300 Suspension, Steering and Brakes-Gen-
eral. Bounce suspension a few times.
- With car on ground and loaded, tighten tension strut bushing
through-bolt.
Tightening torques Road
wheel to hub 120-i-10 Nm (89+7ft-lb)
Stabilizer bar to subframe 24 Nm (1 8 ft-lb)
Tension strut to steering
knucltle
80 Nm (59 ft-lb)
Tension strut
to subframe 110 Nm (81 ft-lb)
81 Nm (60 it-lb)
L BcniliiyFlrblrillirn con,-*I R!,illJ Rci,:n>d

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31 0-1 8
I~ront Suspension Tension strut bushing, replacing
- Raise car and remove wheel.
WARNING-
Make sure that the caris 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 tension strut from car as described earlier.
- Using a service press and appropriate press tools (BMW
special tools 31 2 26112621263 or equivalent), press bushing
out of tension strut.
4 Clean bushing bore and press in new bushing while aligning
mark on bushing with
rnarlt on tension strut (arrows).
CAUTION-
To avoid damaging the new bushing, press only on the outer
steel sleeve during installation.
- Press bushing in so it protrudes equally from both sides of
tension strut.
- Install tension strut as described earlier.
CAUTION-
Tighten the tension strut bushing through-bolt to its final
torque only with car on the ground and the suspension nor-
mally loaded as described earlier.
The front wheel bearings are permanently sealed and require
no maintenance. The bearing is integral with the wheel hub.
The wheel bearing and hub assembly is bolted to the steering
knuckle.
- Raise car and remove front wheel
WARNING-
Make sure that 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
susoension Darts.
- Unbolt brake caliper and hang to side with stiff wire. Do not
disconnect bralte hose. Remove bralte disc. See
340
Brakes.

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31 0-21
Front Suspension
4 Remove four bearing hub mounting bolts (arrows) and tap
hub assembly out of steering knuckle.
4 Before installing new wheel bearing and hub assembly, be
sure hub and steering knuckle sealing surfaces are free of
dirt and grease.
- Installation is reverse of removal.
Replace hub mounting bolts.
Use new self-locking nuts at steering tie rod and stabilizer
link.
Tightening
torques
Road wheel lugs to hub 120i-10 Nm (89i-7ft-lb)
Stabilizer link to stabilizer bar
Steering tie rod to steering
ltnuckle
Tension strut to steering
knucltie
Wheel bearing hub to steering
Itnucltle (replace bolts)
65 Nm (48 ft-lb)
65
Nm (48 it-lb)
80 Nm (59 ft-lb)
1
lo Nm (81 ft-lb)