2001 BMW 330i TOURING wheel torque

161n
IndexDataTechnologyRepairsCar careControlsOverview
Changing a wheel8 Remove mud or dirt accumulation
from the mounting surfaces of the
wheel and hub. Clean the lug bolts.
9 Position the new wheel or the
space-saver tire on the hub and
screw at least two lug bolts finger-
tight into opposite bolt holes.
10 Screw in the remaining lug bolts.
Tighten all the bolts snugly.
11 Lower the jack and remove it from
beneath the vehicle.
12 Tighten the lug bolts in a diagonal
pattern.
13 If your wheels are equipped with full
wheel covers
*, place the wheel
cover with the valve opening over
the valve (arrow). Use both hands
to press the cover securely onto
the rim.
460de125
14 Check and correct the tire's inflation
pressure at the earliest possibility.
For vehicles with Tire Pressure
Control (RDC):
After mounting the spare tire or
correcting the inflation pressure,
reactivate the system. Refer to
page 85.
Use only the full wheel cover in-
stalled by the factory. Other wheel
covers may not fit securely. The full
wheel cover may not be installed on the
space-saver tire since this could
damage the cover.<
The vehicle jack is designed for
changing wheels only. Do not
attempt to raise another vehicle model
with it or to raise any load of any kind.
To do so could cause accidents and
personal injury.
To ensure continued safety, have the
tightness of the lug bolts [torque
specification: 76 lb. ft. (100 Nm)]
checked with a calibrated torque
wrench.<
When storing the wheel, take care to
ensure that you do not damage the
retaining pin in the spare tire recess.
If light-alloy wheels other than original
BMW light-alloy wheels have been
mounted, it may be necessary to use
different lug bolts for those wheels.
Replace the defective tire as soon as
possible and have the new wheel/tire
balanced.

173n
IndexDataTechnologyRepairsCar careControlsOverview
On vehicles with an automatic trans-
mission, the Adaptive Transmission
Control (ATC) uses a number of factors
to calculate the gear which provides
maximum efficiency. In this process, it
considers your individual driving style
as well as current driving conditions.
ATC recognizes your personal driving
style from the positions and movements
of the accelerator pedal, deceleration
when braking, and lateral acceleration
through curves. Based on different shift
characteristics Ð from comfort-oriented
to performance-oriented Ð ATC will
select the appropriate gear.463us005
In order to include driving conditions in
its calculations, ATC registers curves
and both uphill and downhill gradients.
For example, if you maintain speed
through a curve, the transmission does
not shift up. On uphill gradients, it shifts
up only when the engine speed
increases in order to make more effi-
cient use of power reserves. On down-
hill gradients, ATC shifts down when
the speed of the vehicle increases and
the driver must apply the brakes.Highly sensitive sensors monitor the
number of revolutions of the wheels,
steering angle, lateral acceleration,
brake pressure and the movement of
the vehicle around its vertical axis.
If differences in the wheel speeds
occur, ASC+T recognizes the danger of
wheelspin and reduces torque. If
necessary, the system also responds
with additional brake applications at the
rear wheels.
In addition, DSC permanently monitors
the vehicle's current operating condition
and compares it with an ideal condition
that is calculated from the sensor's
signals. If deviations from this occur
(understeering or oversteering, for
instance), DSC can stabilize the vehicle
in fractions of a second by reducing
engine output and with the assistance of
braking intervention at individual
wheels. As a result, dangerous skids can
be prevented even as they are just
beginning.
You may need some time to become
accustomed to this system's interven-
tion. However, it provides optimum drive
force and vehicle stability.
The braking intervention may be
accompanied by sounds specific to the
system.
ATC
*
ASC+T/DSC
*

175n
IndexDataTechnologyRepairsCar careControlsOverview
Four-wheel drive Safety belt tensionerThe transmission of power to the four
drive wheels is provided permanently
through a transfer box. The distribution
of torque between the front and rear
axles is 38% to 62%.
Traditional differential locks at the front
and rear axles and in the transfer box
are not required. Their function is
assumed by automatic braking inter-
vention at all four wheels. These trac-
tion interventions are governed by
Automatic Differential Brake (ADB-X), a
sub-function of DSC.
If a wheel tends to slip, it is braked
automatically by ADB-X until it once
again gains traction, and drive force
can be transmitted to that wheel. In
addition, the drive force is distributed to
the remaining wheels during this 530us133
system intervention. Engine output is
also reduced if necessary.
When the DSC is deactivated, the
ADB-X traction intervention is set for
the maximum drive force. However, the
engine intervention and the stability
controls are no longer available. For
this reason, DSC should only be deacti-
vated in the exceptional circumstances
described on page 81.
The BMW 325xi is not an off-road
vehicle. Instead, permanent four-wheel
drive provides a high degree of vehicle
stability and tractive ability under all
road conditions, and will aid you in crit-
ical driving situations, e. g. driving in
extreme winter conditions or on loose
road surfaces.The safety belt tensioner responds to
severe frontal collisions by tightening
the belts to ensure that occupants
remain firmly positioned in their seats.
A gas-pressure system retracts the
buckle assembly to tension the
shoulder and lap belts within fractions
of a second. This reduces the tendency
to slide under the lap belt.
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Everything from A to Z
197n
IndexDataTechnologyRepairsCar careControlsOverview
Tire codes127
Tire damages124
Tire inflation
pressure28,124
Tire Pressure Control
(RDC)85,178
Tire pressure
monitoring85,178
Tire Quality Grading125
Tire replacement125,126
Tire specifications129
Tire tread124
Tools152
Torque184
Tow fittings168
Tow starting168
Towing168
Track185
Traction Control System,
refer to DSC79
Transmission64
Transporting children
safely58
Tread depth, tires124
Trip odometer73
Trunk38
Turn signal
indicator23,68,154
bulb replacement154
Turning radius185
Two-way radios123
U
Uniform Tire Quality
Grading125
Used batteries164 V
Vacuum cleaner,
connecting104
Vanity mirror51
bulb replacement158
Vehicle battery162,188
Vehicle care
exterior142
interior144
Vehicle Identification
Number (VIN)139
Vehicle immobilizer33
Vehicle painting142
Vehicle removal from
service147
Vehicle storage147
Vehicle weight186
Ventilation90,93,96
draft-free93,100
Vinyl upholstery, care144
Voice recognition24,25 W

Warning lamps20
Warning messages75
Warranty and Service Guide
(Canadian models)140 Washer fluids134
Washer nozzles134
Washer reservoir, filling134
Washing your car141
Water on roadways
deep water115
Waxing, paintwork143
Weights186
Wheel changing159
Wheel lug wrench159
Wheel rims127
Wheel stud wrench159
Wheelbase185
Wheels and tires127,129
Width185
Windows, convenience
operation34
Windshield washer nozzle
adjustment134
Windshield washer reservoir,
filling134,187
Windshield wiper68
blade replacement152
Winter operation121
Winter tires127,128
Wiper blade
replacement152
Wiper system68
Work in the engine
compartment130
X
Xenon lamp154,180