BMW 5251 Service Manual page 649

Front Suspension
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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.
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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.
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Cars equipped with vertical headlight adjustment system:
Disconnect control arm from level sensor.