
 
20n
 
Indicator and warning lamps 
 
Technology that monitors itself 
 
Many of the systems of your BMW 
monitor themselves automatically, both 
during engine starts and while you are 
driving. Indicator and warning lamps 
that are identified by "
 
l
 
" are tested for 
proper functioning whenever the igni-
tion key is turned. They each light up 
once for different periods of time.
If a fault should occur in one of these 
systems, the corresponding lamp does 
not go out after the engine is started or 
it will light up while the vehicle is 
moving. You will see how to react to 
this below.
 
Red: stop immediately
 
Battery charge current 
 
l
 
 
The battery is no longer being 
charged. There is a malfunction 
of the alternator V-belt or in the 
charging circuit of the alternator. Please 
contact the nearest BMW center.
If the V-belt is defective, do not 
continue driving. The engine could 
be damaged due to overheating. If the 
V-belt is defective, increased steering 
effort is also required.
 
<
 
Engine oil pressure
 
  
l
 
  
Stop the vehicle immediately 
and switch off the engine. Check 
the engine oil level and refill as required. 
If the oil level is correct, please contact 
the nearest BMW center.
Do not continue driving, otherwise, 
the engine could be damaged 
because of inadequate lubrication.
 
< 
Tire Pressure Control (RDC) l
In addition, an acoustic signal 
will go off: a tire failure has 
occurred. Reduce vehicle speed imme-
diately and stop the vehicle. Avoid hard 
brake applications. Do not oversteer. 
For additional information, refer to 
page 85.
Brake warning lamp l
If the lamp comes on when the 
parking brake is not engaged, 
check the brake fluid level. Before 
driving further, be sure to read the 
notes on pages 122 and 138.
Brake warning lamp for Cana-
dian models. 

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic transmission with Steptronic
*
In the following situations, the Step-
tronic "thinks" for you in the manual 
mode:
>In order to prevent engine over-
speeding, the transmission shifts 
automatically to the next higher gear 
shortly before the engine speed 
cutoff point.
>At low speeds, the transmission 
shifts down automatically Ð you do 
not have to act.
>In the "kickdown" mode, the trans-
mission shifts down to the lowest 
gear possible, depending 
on the engine speed. 
>Depending on the situation Ð when 
driving in adverse winter conditions, 
for example Ð you may also start out 
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 transmis-
sion performance has been restored. 
Drive off normally.
If the indicator lamp does not go out, 
all selector lever positions can still be 
selected, however in the forward posi-
tions the vehicle has limited perfor-
mance, as it drives only in 3
rd and 4
th 
gear.
If this happens, avoid extreme engine 
loads and consult the nearest BMW 
center.
Do not perform service operations 
in the engine compartment with 
a drive position engaged. If you do so, 
the vehicle could move.<
For towing, tow-starting or jump-
starting the vehicle, refer to the infor-
mation beginning on page 167. 

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IndexDataTechnologyRepairsCar careControlsOverview
Graphic display
 
The following information and/or condi-
tions are indicated using symbols, 
starting with the ignition key position 2, 
until the condition has been corrected:
1 Inspect the low-beam and high-beam 
headlamps, as well as the side lamps
2 Door open
3 Tailgate open
4 Check brake and brake lamps
When you open the driver's door after 
stopping with the lights still on, a 
warning signal sounds for LIGHTS ON.460de083
If you wish to have a permanent time 
display, you can make this adjustment 
in the radio display (refer to the Radio 
Owner's Manual).
You can adjust the clock and the time 
display in the car radio as follows.
AdjustmentsFrom ignition key position 1 
To set ahead: turn the right button to 
the right.
To set back: turn the right button to the 
left. 
The adjustment speed will increase the 
longer you continue to hold the button 
turned to the left.
To change the display mode: press the 
knob briefly. 
Every time you press the knob, the 
clock display alternates between the 
12-hour or 24-hour mode.
In ignition key position 0:
The time is displayed for a few seconds 
after you press the left button (refer to 
"Odometer" on page 73).460us078
Check Control
 
Clock  

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IndexDataTechnologyRepairsCar careControlsOverview
DSC
* Ð BMW 325i
The concept DSC helps maintain vehicle stability, 
even in critical driving situations. 
The system optimizes vehicle stability 
during acceleration and when starting 
from a full stop, as well as optimizing 
traction. In addition, the system recog-
nizes unstable vehicle conditions 
(understeering or oversteering, for 
example) and helps hold the vehicle on 
a sure course by intervening via the 
engine and by braking intervention at 
the individual wheels. 
The DSC is operational every time you 
start the engine. DSC contains the 
functions of ADB and CBC, refer to 
page 117.
The ADB (Automatic Differential 
Braking) copies the function of conven-
tional differential and transverse lock 
through brake intervention, and 
increases traction whenever conditions 
merit, e. g. when driving on snow-
covered roads.
If the DSC is switched off the ADB will 
still be in ready mode.
Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly 
after you switch on the ignition. 
Refer to pages 21 and 22.
Indicator lamp flashes:
DSC is active and governs the drive 
force and braking force. 
The indicator lamp lights up continu-
ously:
The DSC has been turned off via the 
switch; ADB is ready to use.
ADB intervention is not indicated.
The indicator lamp and the 
brake warning lamp lights up 
continuously:
The DSC, ADB and DBC have 
been switched off via the button 
or are defective.
Indicator and warning lamps for 
Canadian models.
You can continue to drive the vehicle 
normally, but without DSC. Please 
consult your BMW center in the event 
of a malfunction, refer to pages 21 
and 22.
Deactivate DSC/activate ADBPress the DSC button briefly, the indi-
cator lamp lights up continuously.
The DSC has been switched off; ADB is 
operational.
In the following exceptional circum-
stances, it may be effective to deacti-
vate the ADB for a short period:
>When rocking the vehicle or starting 
off in deep snow or on loose 
surfaces.
>When driving on snow-covered 
grades, in deep snow, or on a snow-
covered surface that has been 
packed down from being driven on.
>When driving with snow chains.
Refer also to page 121.
The gain in traction is achieved by a 
reduction in stabilizing intervention.460de313 

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IndexDataTechnologyRepairsCar careControlsOverview
DSC Ð BMW 325xiThe conceptDSC maintains vehicle stability, even in 
critical driving situations.
The system enhances vehicle stability 
during acceleration and when starting 
up from a full stop, and optimizes trac-
tion as well. In addition, it recognizes 
unstable vehicle conditions, such as 
understeering or oversteering, and, as 
far as is possible within the laws of 
physics, helps keep the vehicle on a 
steady course by reducing the engine 
output and brake applications to the 
individual wheels.
The DSC is operational every time you 
start the engine. DSC contains ADB-X 
und DBC, refer to page 118.
The ADB-X (Automatic Differential 
Braking) replaces the function of 
conventional differential and transverse 
lock through brake intervention, and 
increases traction whenever conditions 
merit, e. g. when driving on snow-
covered streets.Indicator lamp
The indicator lamp on the instru-
ment cluster will go out shortly 
after the ignition has been 
started. Refer to pages 21, 22.
If the indicator lamp flashes: 
DSC controls the drive and braking 
forces. 
The indicator lamp stays lit: 
DSC is switched off via the switch; 
ADB-X is operational.
ADB-X intervention not indicated.
If the indicator lamp does not go 
out after repeatedly pressing the 
DSC switch, then the DSC and the 
ADB-X are defective, and the interven-
tion described to the right is then no 
longer available.<
The vehicle will remain completely 
operational, however, without DSC. In 
the event of a fault, please see your 
BMW center. Refer to pages 21, 22.
Deactivate the DSCPress the DSC button; the indicator 
lamp comes on and stays on.
The DSC has been switched off and the 
ADB-X is designed for maximum 
output.
In the following exceptional circum-
stances, it may be effective to deacti-
vate the DSC for a short period:
>When rocking the vehicle or starting 
off in deep snow or on loose 
surfaces.
>When driving with snow chains. Refer 
also to page 121.
To maintain vehicle stability, 
always drive with the DSC on 
whenever possible.<460de313 

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IndexDataTechnologyRepairsCar careControlsOverview
Automatic climate control
*
Air supply
 
By pressing the left or right half 
of the button, you can vary the 
air supply. By doing this, you switch off 
the automatic control for the air supply. 
Nevertheless, the automatic air distri-
bution remains unchanged.
When you set the lowest blower speed 
by pressing the left half of the button, 
all of the displays are canceled: the 
blower, heating and air conditioner are 
switched off, and the air supply stops. 
You can reactivate the system by 
pressing any button of the automatic 
climate control.
Defrost windows and remove 
condensation
This program quickly removes 
ice and condensation from the 
windshield and side windows.
Air conditioner
The air is cooled and dehumidi-
fied and Ð depending on the 
temperature setting Ð rewarmed when 
the air conditioner system is switched 
on.
Depending on the weather, the wind-
shield may fog over briefly when the 
engine is started.
Use the button to switch the air condi-
tioner off when outside air temperatures 
are below approx. +41 7 (+5 6). This 
will help to prevent the windows from 
fogging up. 
If the windows fog over after switching 
the air conditioner off, switch it back on.
Condensation forms in the air 
conditioner system during opera-
tion, that then exits under the vehicle. 
Traces of condensed water of this kind 
are thus normal.<
Automatic recirculated air control 
(AUC)
You can respond to unpleasant 
external odors by temporarily 
blocking the outside air. The system 
then recirculates the air already within 
the vehicle. By repeated actuation of 
the button, you can select one of three 
different operation modes.
>Indicator lamps off: fresh air flows 
into the vehicle.
>Left-hand indicator lamp on Ð AUC 
mode: the system detects pollutants 
in the outside air and responds by 
deactivating the outside air flow as 
required. The system then recircu-
lates the air already within the vehicle.
Depending on air quality require-
ments, the system automatically 
switches between outside air supply 
and recirculation of the air already 
within the vehicle. 
>Right-hand indicator lamp on: the 
flow of outside air is permanently 
blocked. The system recirculates the 
air already within the vehicle.
If the windows fog over in the 
recirculated air mode, switch this 
mode off and increase the air supply as 
required.
is turned on, the indicator lamp 
comes on; refer to page 70. 

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IndexDataTechnologyRepairsCar careControlsOverview
Brakes:
Do not drive with your foot resting 
on the brake pedal. Even light but 
consistent pedal pressure can lead to 
high temperatures, brake wear, and 
possibly to brake failure.
Aquaplaning:
When driving on wet or slushy roads, 
reduce vehicle speed. If you do not, a 
wedge of water may form between the 
tires and the road surface. This 
phenomenon is referred to as aqua-
planing or hydroplaning. It is character-
ized by a partial or complete loss of 
contact between the tires and the road 
surface. The ultimate results are loss of 
steering and braking control.
Driving through water: 
When there is water on the roads, do 
not drive in it if it is deeper than 1 ft 
(30 cm), and then only at walking speed 
at the most, otherwise the vehicle can 
sustain damage to the engine, the elec-
trical systems and the transmission.
Roll-up cover:
Never use the rear window shelf to 
store heavy or bulky objects. If you do 
so, such objects could injure vehicle 
occupants during braking or evasive 
maneuvers or in a crash.
Clothes hooks:
When suspending clothing from the 
hooks, ensure that they will not obstruct 
the driver's vision. Do not hang heavy 
objects on the hooks. If you do, such 
objects could pose the risk of personal 
injury during braking or evasive maneu-
vers.
use with unleaded fuel only.
Even minute quantities of lead would be 
enough to permanently damage both 
the catalytic converter and the system 
oxygen sensor.
To ensure efficient, trouble-free engine 
operation and to avoid potential 
damage:
>Be sure to comply with the scheduled 
maintenance requirements. 
>Fill the fuel tank well before it is 
empty.
>Tow-start only when the engine is 
cold. If you attempt to tow-start with 
a warm engine, unburned residual 
fuel in the catalytic converter could 
ignite and cause damage. It is better 
to start the vehicle with an outside 
starting aid.
>Avoid other situations in which the 
fuel is not burned, or burns incom-
pletely, such as engaging the starter 
frequently or for extended periods, or 
repeated start attempts in which the 
engine does not start (stopping and 
restarting an engine which is running 
properly does not present a problem). 
Never allow the engine to run with 
any of the spark plug cables 
disconnected.
Driving notes  Catalytic converter 

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IndexDataTechnologyRepairsCar careControlsOverview
Winter operationWinter is often accompanied by rapid 
changes in weather. Adaptions in 
driving style should be accompanied by 
preparations on the vehicle itself to 
ensure that your vehicle operates safely 
and trouble-free throughout the winter 
months.CoolantBe sure that the coolant mixture 
contains the year-round ratio of 50:50 
water and antifreeze/corrosion protec-
tion. This mixture will resist freezing to 
approx. Ð34 7 (Ð37 6). Replace the 
coolant every four years.LocksBMW door lock deicer can be used to 
free them if frozen. This deicer also 
contains lubricant.
After using the deicer, treatment with 
BMW lock cylinder grease is recom-
mended.
Rubber seals and components To prevent the weather stripping from 
freezing, apply a spray-on rubber treat-
ment or silicone spray to the door, hood 
and tailgate seals.
A full range of car care products is 
available from your BMW center.
BMW snow chains can be mounted on 
both summer and winter tires. Mount 
them in pairs on the rear wheels only 
and comply with the manufacturer's 
safety precautions. Do not exceed a 
maximum speed of 30 mph (50 km/h). 
In this type of exceptional situation 
where the snow chains are mounted, 
deactivate the ASC+T/DSC. Refer to 
page 79.
BMW 325xi: in a worst-case scenario, 
i.e. if your vehicle is stuck on one side 
or you cannot access one tire, then only 
one chain may be attached to a rear 
wheel for a short period of time.
Starting offWhen starting off from a full stop in 
deep snow or when "rocking" the 
vehicle to free it, it may be effective to 
deactivate the ASC+T/DSC system for 
a short period. Refer to page 79.Driving on low-traction road 
surfacesUse smooth, gentle pressure to control 
the accelerator pedal. Avoid excessive 
engine speeds and shift to the next 
higher gear at an early point. Downshift 
into the next lower gear on ascents or 
descents. Maintain an adequate 
distance between yourself and the 
vehicle ahead.