gearbox BMW 540i 1998 E39 User Guide

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320-34
I Steerins and Wheel Alignment
Front toe and toe difference angle
Toe is the difference in the distance between the front of the
front wheels and the rear of the front wheels. It is adjusted by
altering the length of the tie rods.
Toe difference angle determines the progressively different
paths taken by the front wheels as the car is turning. In
V-8
models, it is set by the pitman arm adjustment, but depends
on accurate setting of the toe.
Toe adjustments should only be made on specialized align-
ment equipment and only with the car in normal loaded posi-
tion, described below.
- Set front wheel toe at tie rod ends:
4 6-cylinder models: Loosen tie rod lock nut (A).
Adjust toe by turning inner tie rod (B) to change length
- V-8 models: Loosen left and right tie rod clamp bolts.
Adjust toe by turning inner tie rod to change length.
NOTE-
* Steering rack or steering gearbox can be centered by
aligning centering mark on steering shaft
with lug on steer-
ing rack.
To keep steering wheel centered, adjust both tie rods equal
amounts.
&cylinder models: Make sure the rubber boot on the rack
moves freely on the tie rod and does not become twisted.
Tightening torques
Tie rod clamp bolt
Tie rod collar
nut
27 Nm (20 ft-lb)
45 Nm (33 A-lb)
Rear toe
To adjust rear wheel toe, turn eccentric inner mounting bolt in
upper front control arm (traction strut).
NOTE-
Always adjust rear camber first.
- Before making toe adjustment, install new
mounting nut and tighten.
- Loosen nut one-half to one full turn.
4 Turn eccentric bolt (arrow) to adjust toe. rear
control arm

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Steering description 300-10
liuid see Maintenance
gearbox
320-25
idler arm 320-30
lock 320-12
pitman arm 320-28 power steering pump 320-17
rack & pinion 320-19
steering column 320-10 motors 320-16
removinglinstalling 320-14
trim 320-10
steerino wheei 320-7 tie rods-
6-cvlinder, reelacinq 320-22
V- center tie' rod, replacing 320-32
variations 310-5
Steering box
see Steering, gearbox
Steering column switches
see Switches
Steering column
see Steering
Steering lock
see Steering
Steering
wheei switches
see Switches
Stepper motor
see
AIC
Steptronic transmission
see Gearshift
Strut see Front suspension
see also Rear suspension
Subframe see Rear suspension
Sunroof initializing
540-2
adiustinq 540-5 . . cornponents, removingiinstailing
540-9
emergency closing 540-4
Suspension, front
see Front suspension
see also
Aluminum suspension
cornponents
Suspension, rear
see Rear suspension
see also Aluminum suspension
cornponents
Swing arm
see Rear suspension, suspension
arms
Switches
ASCIDSC 612-12 back-ue
manual transmission 230-8
automatic transmission, see
Automatic transmission, range
switch
center console switches
612-11
central ioci(ing 612-1 1
hazard 612-1 I headlight 612-9
ignition cylinder 320-1 1. 612-6
outside mirror 612-11
pedal cluster switches 612-8 seat heater 612.12
steering column positioning 612-7
steering column switches 612-6 steering wheel switches 612-2
turn signaliheadlight dimmer 612-6
window 612-1 1
wipers 612-6
Tailgate
412-6 emergency release 400-4,412-6,
515-21
taiigatelrear window
loclring 515-14 see also Trunldtaiioate ioclr - see also Central ioclcing
Taillights
see Lights
Tape player
650-3
TCM (transmission control module)
see Automatic transmission
Tension strut
see Front suspension
Thermostat see Cooling system
see also Electrically heated
thermostat
Throttie body
see 130 under appropriate
fuel injection system
Throttie
cable
130-38
Throttie position sensor
see 130 under appropriate luel
injection system
Throw-out bearing
see Clutch, mechanical
Thrust arm
see Front suspension
Tie rod
see Steering
Tightening fasteners
010-8
Tilt sensor 515-24
Timing chain
see
Camshaft timing chain
Tire, changing
010-18
Tires
300-1 1
see also Maintenance
Toe
320-34
Tools
010-13