control BMW 320i 2001 Service Manual

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IndexDataTechnologyRepairsCar careControlsOverview
Transporting children safelyChild seat securityAll of the rear belt retractors and the
front passenger's safety belt can be
locked for mounting and securing child
restraint systems.
Information pertaining to this is located
in the immediate vicinity of the buckle
latch of each safety belt.462us014
Lock the safety beltExtract the entire length of the belt from
the inertia reel mechanism. Allow the
reel to retract the belt somewhat and
engage the buckle, then tighten the belt
against the child restraint system. The
retraction mechanism is now locked.
The belt cannot be extracted further.
Always comply with the installation
instructions provided by the manufac-
turer of the child restraint system.
Unlock the safety beltRelease the safety belt, remove the
child's seat and pull the safety belt out
to its end position on the belt retractor.

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IndexDataTechnologyRepairsCar careControlsOverview
Starting the engine Switching off the engine Do not press the accelerator pedal
while starting the engine.
Do not actuate the starter for too
short a time, but do not turn it for
more than approx. 20 seconds. Release
the ignition key immediately when the
engine starts.
Do not allow the engine to warm up by
leaving it running while the vehicle
remains stationary. Instead, begin
driving immediately at a moderate
engine speed.<
If the engine does not start on the first
attempt (if it is very hot or cold, for
instance):
>Press the accelerator pedal halfway
down while engaging the starter.
Cold start at extremely low tempera-
tures, from approx. +5 7 (-15 6)
and at elevations above 3,300 feet
(above 1,000 meters):
>On the first start attempt, engage the
starter for a longer period (approx.
10 seconds).
>Press the accelerator pedal halfway
down while engaging the starter.
Engine idle speed is controlled by the
engine computer system. Increased
speeds at startup are normal and
should decrease as the engine warms
up. If engine speed does not decrease,
service is required.
To prevent the battery from
discharging, always deactivate elec-
trical devices that are not in use. Switch
the ignition off when the vehicle is not
being driven.Turn the ignition key to position 1 or 0.
Do not remove the ignition key
while the vehicle is still moving.
If you did so, the steering lock would
engage when the steering wheel is
turned.
When you leave the vehicle, always
remove the ignition key and engage the
steering lock.
Vehicles with manual transmission:
Always engage the parking brake when
parking on slopes and inclined
surfaces. Placing the lever in 1st gear
or reverse may not provide adequate
resistance to rolling.
Vehicles with automatic transmission:
Place the selector lever in "Park."<

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IndexDataTechnologyRepairsCar careControlsOverview
Manual transmission Press the clutch pedal all the way down
each time you shift, pressing the
manual-shift gear lever into its proper
end position.
Depress the clutch when starting the
vehicle, too, otherwise, lockout will
prevent the engine from starting if the
clutch is not depressed.
The shift lever's neutral plane (dot in the
illustration) is located between 3rd and
4th gears.
When shifting from each gear into
"Neutral," the shift lever returns auto-
matically to this neutral position
because of its spring loading.360de044
Reverse Select "Reverse" only when the vehicle
is at a complete stop. Press the shift
lever to the left to overcome the resis-
tance.
As you do this, the backup lamps will
turn on automatically when the ignition
key is in position 2.
Do not hold the vehicle in place on
slopes by slipping or "riding" the
clutch. Use the parking brake instead.
Otherwise, riding the clutch will cause
tremendous wear and tear to the
clutch.<

66n
Automatic transmission with Steptronic
*
You have the option of driving with a
normal automatic transmission or
switching to manual.
When you move the selector lever from
the "D" position to the left into the M/S
range, the performance-oriented shift
programs of the automatic transmission
are engaged. As soon as you briefly
touch the selector lever in the "+" or "Ð"
direction, Steptronic changes the gear.
The manual mode is engaged. When-
ever you want to use automatic again,
just shift the selector lever toward the
right to position D.
The automatic transmission with Step-
tronic is equipped with ATC (Adaptive
Transmission Control). ATC reacts with
precision to your individual driving style
and the current driving conditions. It is
for this reason that various shift
programs are used.
For additional details concerning the
ATC, please refer to the chapter
"Advanced technology" on page 178.
Selector lever positions
P R N D M/S + Ð
Starting the engineThe engine can only be started in
selector lever positions P ("Park") or N
("Neutral").Range selectionA detent prevents inadvertent shifts into
certain selector lever positions. To
disengage the detent, press the button
on the front of the shift knob (arrow).463de061
While the vehicle is stationary and
before shifting out of "Park" or
"Neutral," depress the footbrake in
order to disengage the selector lever's
lock mechanism (Shiftlock).
Hold the footbrake down until starting
off. Otherwise the vehicle will "creep"
when a drive position is engaged.<
If you leave the vehicle with the
engine running, move the selector
lever to the "Park" or "Neutral" position
and apply the parking brake. If you fail
to do this, the vehicle could move.
Do not leave the vehicle unattended
with the engine running. An unattended
vehicle with a running engine repre-
sents a major potential safety hazard.<
P ParkSelect only when the vehicle is
stationary. The transmission locks to
prevent the rear wheels from turning.R ReverseSelect only when the vehicle is
stationary.N NeutralSelect only if your journey is interrupted
for a long period.

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic transmission with Steptronic
*
D Drive (automatic shift program)This position is designed for driving
under all normal operating conditions.
All forward gears are available, the
Adaptive Transmission Control (ATC) is
fully operational."Kickdown"In the "Kickdown" mode, you achieve
the maximum performance.
To activate this mode, depress the
accelerator pedal beyond the full-
throttle position, at which a resistance
point must be overcome.
M/S Manual operation and
Sport ProgramShifting from D into M/S activates the
Sport Program. This is indicated by
"SD" in the gear selection display. This
position is recommended for a perfor-
mance-oriented driving style.
With the first brief touch, the automatic
transmission shifts from the Sport
Program to the manual mode.
When you move the selector lever
forward in the "+" direction, the trans-
mission shifts up. When the lever is
moved back in the "Ð" direction, the
transmission shifts down. M1 to M5
appear in the gear indicator.463de062
Upshifts or downshifts will only be
carried out by the ATC at appropriate
engine speeds and road speeds. If the
engine speed is too high, for instance, a
downshift will not be executed. The gear
selected will appear briefly in the instru-
ment cluster followed by the current
gear.
To accelerate quickly in the
manual mode (to pass another
vehicle, for instance), shift down manu-
ally or employ the kickdown mode.<
Shifting from M/S to the selector lever
positions P, R and N is possible only by
going through D.

68n
Automatic transmission with Steptronic
*
In the following situations, the Step-
tronic "thinks" for you in the manual
mode:
>In order to prevent the engine from
overrevving, the transmission shifts
automatically to the next higher gear
just before the engine speed cutoff
point.
>If you do not do anything to inter-
vene, it will automatically downshift
at lower speeds.
>In kickdown, it will downshift into
the lowest gear possible, depending
on the engine speed.
>According to the situation, for
instance in wintry conditions, the
vehicle can be started in 2nd or
3rd gear.
Available displays
P R N D SD M1 M2 M3 M4 M5460us143
Electronic transmission control
module
If the indicator lamp comes on,
there is a malfunction in the
transmission system.
Bring the vehicle to a stop, select trans-
mission position "P," set the parking
brake and turn the engine off (ignition
key to position 0).
Wait a few seconds, then start the
engine.
If the indicator lamp goes out after a
few seconds, normal transmission
performance has been restored. You
may continue to drive as usual.
If the indicator lamp does not go out,
all selector lever positions can still be
selected, however in the forward
positions the vehicle has limited
performance as it drives only in 3rd
and 4th gear.
If this happens, avoid extreme engine
loads and consult the nearest BMW
center.
Do not work in the engine
compartment when a drive gear
(forward or reverse) is engaged. If you
do this, the vehicle could move.<
For towing or jump-starting, refer to the
information beginning on page 173.

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IndexDataTechnologyRepairsCar careControlsOverview
Turn signal indicator/Headlamp flasher Wiper/Washer system 1 High beams (blue indicator)
2 Headlamp flasher (blue indicator)
3 Turn signal indicator (green indicator
lamp accompanied by periodic
clicking sound from the relay)
If the indicator lamp and the clicking
from the relay are both faster than
normal, one of the turn signal indicators
has failed. 460de085
To signal brieflyPress the lever up to but not beyond
the detent. It then returns to the center
position when released.
0 Wipers retracted
1 Intermittent mode or rain sensor
2 Normal wipe
3 Fast wipe
4 Brief wipe
5 Cleaning windshield
6 Rotary dial for control of the wipe
interval or the sensitivity of the rain
sensor
460de023

70n
Wiper/Washer system1 Intermittent mode or rain
sensor
*
Intermittent mode:
You can use rotary dial 6 to select from
four wipe intervals.
In addition, the wipe interval automati-
cally adapts to variations in road speed.
Rain sensor:
The rain sensor is positioned on the
windshield, directly ahead of the inte-
rior rearview mirror. When the rain
sensor is activated, the windshield
wiper is controlled automatically,
depending on the degree of wetness of
the windshield (in both snow and rain).
You do not have to be concerned with
switching the windshield wiper on or off
or adjusting the wipe interval between
intermittent and full wipe. Instead, you 460de023
can concentrate fully on the traffic
conditions. This is especially important
under adverse weather conditions.
To activate the rain sensor:
In ignition key position 1, move the
lever to position 1. The wipers travel
once across the windshield, regardless
of the weather.
You can leave the lever permanently in
position 1, and then activate the rain
sensor from ignition key position 1. To
do this,
>turn rotary dial 6 briefly or
>use cleaning windshield 5.
To adjust the sensitivity of the rain
sensor:
Turn rotary dial 6.
Deactivating the rain sensor:
Put lever in position 0.
Turn the rain sensor off when
passing through an automatic car
wash. Failure to do so could result in
damage caused by undesired wiper
activation.<
2 Normal wiper speedWhen the vehicle is stationary, the
wipers switch automatically to intermit-
tent wipe (not on vehicles with rain
sensor).3 Fast wiper speedWhen the vehicle is stationary, the
wipers operate at normal speed (not on
vehicles with rain sensor).5 Cleaning windshieldThe system sprays washer fluid against
the windshield and activates the wipers
for a brief period.
If you pull the lever only briefly, the
system sprays washer fluid onto the
windshield without activating the
wipers.

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IndexDataTechnologyRepairsCar careControlsOverview
Wiper/Washer system Rear window defroster Cleaning headlamps
*
When the vehicle's lighting system is
switched on, the headlamps will also be
cleaned every fifth time cleaning wind-
shield 5 is activated.
Do not use the washers if there
is any danger that the fluid will
freeze on the windshield. If you do so,
your vision could be obscured. Use an
antifreeze agent. Refer to page 138.
Do not use the washers when the reser-
voir is empty. If you do so, the washer
pump could be damaged. *
automatically when the ignition key is in
position 2.The illustration shows the button set-up
for vehicles equipped with automatic
climate control. For other layouts, refer
to page 92.To activatePress the button: as long as the indi-
cator lamp remains on, the rear window
defroster continues at high-output
(rapid thaw).
After the indicator lamp goes out, the
defroster continues operating at
reduced power for a limited period
before deactivating automatically. 462us036
To deactivatePress the button if the indicator lamp is
on.

72n
Cruise control
*
You can store and automatically main-
tain any desired vehicle speed above
approx. 20 mph (30 km/h).
Do not use cruise control on
twisting roads, when high traffic
density prevents driving at a constant
speed, when the road surface is slick
(snow, rain, ice), or when the road
surface is loose (rocks, sand). Press button 1. The indicator lamp in
the instrument cluster comes on. You
can now use the cruise control.460de077
To store and maintain speed or
to accelerate Press button 2 briefly:
The system registers and maintains the
current vehicle speed. The speed will
now be increased by approx. 0.6 mph
(approx. 1 km/h) every time you tap the
button.
Press and hold button 2:
The vehicle accelerates without pres-
sure on the accelerator pedal. When
you release the button, the system
registers and maintains the current
speed.
If, on a downhill gradient, the
engine braking effect is not suffi-
cient, the controlled speed may be
exceeded. Speed may drop on uphill
grades if the engine output is insuffi-
cient.<
To deceleratePress button 3 briefly:
When the cruise control is active,
vehicle speed is reduced by approx.
0.6 mph (approx. 1 km/h) every time
you tap the button.
Press and hold button 3:
With the cruise control active, the
system automatically reduces the
throttle opening to slow the vehicle.
When you release the button, the
system registers and maintains the
current speed.