
 
5n
 
OverviewControlsMaintenanceRepairsDataIndex
 
Controls and features
Operation, maintenance
 
Hill Descent Control (HDC)77
Tire Pressure Monitor (RDC)78
Flat Tire Monitor80
 
Lamps:
 
Parking lamps/Low beams82
Instrument lighting83
High beams/Standing lamps83
Fog lamps83
Interior lamps84
 
Controlling the climate for 
pleasant driving:
 
Air conditioning85
Automatic climate control88
Roller sun blind91
 
Interior conveniences:
 
Premium sound system91
Glove compartment92
Storage compartments92
Cellular phone94
Ashtray, front95
Ashtray, rear95
 
Loading and transporting:
 
Through-loading system96
Ski bag97
Cargo loading99
Roof-mounted luggage rack100
 
Special operating instructions:
 
Break-in procedures104
Driving notes105
Antilock Brake System 
(ABS)105
Brake system106
 
Wheels and tires:
 
Tire inflation pressures107
Tire condition107
Tire replacement108
Wheel and tire 
combinations110
Winter tires111
 
In the engine compartment:
 
Hood112
Engine compartment 
essentials113
Washer fluids114
Engine oil115
Coolant117
Brake fluid118
 
Maintenance:
 
The BMW Maintenance 
System119
 
Laws and regulations:
 
Technical modifications120
California Proposition 
65 Warning120
OBD interface socket121 

 
17n
 
OverviewControlsMaintenanceRepairsDataIndex
 
Indicator and warning lamps 
 
Technology that monitors itself 
 
The system runs an operational check 
on the indicator and warning lamps 
identified with the 
 
l
 
 symbol each time 
you switch on the ignition. 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 lights 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. Indicates a defective 
alternator drive belt or a problem with 
the alternator's charge circuit. Please 
contact the nearest BMW center.
If the drive belt is defective, stop 
and switch off the engine immedi-
ately to prevent overheating and 
serious engine damage. If the drive 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; top off as 
required. If the oil level is correct: 
please contact the nearest BMW 
center.
Do not continue driving, as the 
engine could sustain serious 
damage from inadequate lubrication.
 
<
 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 comply with 
the instructions on pages 106 and 118
Brake warning lamp for Cana-
dian models.
Tire Pressure Monitor (RDC)/
Flat Tire Monitor  
l
 In addition, an acoustic signal is 
sounded: a tire failure has occurred. 
Reduce vehicle speed immediately and 
stop the vehicle. Avoid hard brake 
applications. As you steer the vehicle, 
use caution and avoid overcorrecting.
For additional information: refer to 
pages 78 and 80 

 
18n
 
Indicator and warning lamps
 
Red and yellow: continue driving 
cautiously
 
The brake warning lamp comes 
on together with the yellow indi-
cator lamps for ABS and 
ASC+T/DSC:
The entire ABS, CBC, ASC+T/
DSC and
 
  
ADB/ADB-X/DBC
 
  
control system has failed. 
Continue driving cautiously and 
defensively. Avoid hard brake applica-
tions. Please have the system checked 
by your BMW center as soon as 
possible.
For additional information: refer to 
pages 72, 73
CBC, ABS and ASC+T/DSC and 
ADB/ADB-X/DBC indicator and 
warning lamps for Canadian 
models.
 
Red: an important reminder
 
Parking brake warning lamp
Comes on when the parking 
brake is applied Ð an additional 
acoustic signal sounds when starting 
off. 
For additional information: refer to 
page 58
Parking brake warning lamp for 
Canadian models.
Fasten safety belts 
 
l 
 
An acoustic warning also 
sounds in some versions. Lights 
up either for several seconds or until 
the belt is engaged, depending upon 
version.
For additional information on safety 
belts: refer to page 45
Airbags 
 
l
 
Please have the system 
inspected by your BMW center.
For additional information: refer to 
page 49
 
Orange: consult the nearest 
BMW center
 
Automatic transmission
The transmission has 
responded to a malfunction by 
reverting to operation in its emergency 
default program. Please consult the 
nearest BMW center.
For additional information: refer to 
page 59 

56n
Ignition lock  Starting the engine 0 Steering locked 
1 Steering unlocked
2 Ignition switched on
3 Starting engine
Vehicles with automatic transmis-
sion:
Do not move the selector lever from 
position "P" until the engine is running 
(ignition key position 2).
Your vehicle is equipped with an inter-
lock. Therefore, the ignition key cannot 
be turned to position 0 and removed 
until the selector lever is in 
position "P."<
Vehicles with manual transmis-
sion:
Step on the clutch when starting the 
vehicle. A lockout prevents the engine 
from starting if the clutch is not 
depressed.<
Steering lockedThe key can only be inserted and 
removed in this position.
After removing the key, turn the 
steering wheel slightly to the left or right 
until you hear the lock engage.
The sound system remains operational 
for approx. 20 minutes after you switch 
off the ignition (ignition key in position 0 
or key extracted). Simply switch it back 
on.Steering unlocked You will find that it is often easier to turn 
the ignition key from position 0 to posi-
tion 1 when you move the steering 
wheel slightly to help disengage the 
lock.
Individual electrical accessories are 
ready for operation.
Before starting>Engage the parking brake
>Ensure that the shift lever is in 
neutral, or, with an automatic trans-
mission, that the selector lever is in 
position "P"
>Depress the clutch pedal.
Do not allow the engine to run in 
enclosed spaces. The exhaust 
gases contain carbon monoxide, an 
odorless and colorless, but highly toxic 
gas. 
Breathing the exhaust gases poses an 
extreme health risk, and can lead to 
unconsciousness and death.
Do not leave the vehicle unattended 
with the engine running. An unat-
tended vehicle with a running engine 
represents a potential safety hazard.<
 When driving, standing at idle, 
and parking the vehicle, take care 
to avoid contact between the exhaust 
system and flammable materials (grass, 
hay, leaves, etc.).  Such contact could 
lead to a fire, resulting in serious 
personal injury and property damage.<
>Start the engine. Do not press the 
accelerator pedal. 

58n
Parking brake  Manual transmission The parking brake is primarily designed 
to prevent the vehicle from rolling while 
parked. It operates on the rear wheels.To engageThe detent engages automatically, the 
indicator lamp in the instrument cluster 
comes on when the ignition key is in 
position 2, refer to page 18.To releasePull up slightly on the lever, press the 
button (arrow) and lower the lever.
If exceptional circumstances 
make it necessary to engage the 
parking brake while the vehicle is in 
motion, do not pull it with excessive 
pressure. Keep your thumb pressed 
against the release button while care-
fully pulling the lever up to apply 
moderate pressure.
Excessive pressure can lead to over-
braking and loss of traction (fishtailing) 
at the rear axle.
The brake lamps do not come on when 
the parking brake is engaged.
Vehicles with manual transmission:
Always engage the parking brake when 
parking on hills and slopes, as first gear 
or reverse may not provide adequate 
resistance to rolling. 
Vehicles with automatic transmission: 
Place the selector lever in "Park."<
To avoid corrosion and one-sided 
braking, apply the parking brake lightly 
from time to time when coasting to a 
standstill (at a traffic signal, for 
example), provided that it is safe to do 
so.
Reverse Select only when the vehicle is 
completely stopped. Press the shift 
lever to the left to overcome the slight 
resistance.
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. 
Riding the clutch leads to severe and 
premature clutch wear.< 

77n
OverviewControlsMaintenanceRepairsDataIndex
Hill Descent Control (HDC)* Ð BMW 325xi, 330xiThe conceptBy reducing the vehicle's speed on 
steep downhill stretches, HDC main-
tains predictable vehicle handling 
response to provide you with even 
greater control of your BMW during 
extreme descents. 
The vehicle slows to a pace just slightly 
faster than walking speed.
HDC is available for activation at 
vehicle speeds below approx. 22 mph 
(35 km/h). When driving down steep 
hills, the vehicle reduces speed auto-
matically down to slightly more than 
double walking speed (approx. 8 mph/
12 km/h) and then maintains this speed 
at a constant.
You can use the accelerator or brakes 
to vary this automatically controlled 
speed within a range extending from 
approx. 3 mph (5 km/h) to 15 mph 
(25 km/h). 
In conjunction with the multifunction 
steering wheel, you can use the 
+/Ð button to set the cruise control to a 
target speed in the range from approx. 
3 mph (5 km/h) to 15 mph (25 km/h).
HDC is automatically deactivated once 
vehicle speed again exceeds approx. 
35 mph (60 km/h).
To activate the systemPress the HDC button; the green indi-
cator lamp integrated within the button 
comes on. 
The indicator lamp flashes whenever 
the system is actively intervening to 
control your speed with automatic 
brake applications.To deactivate the systemPress the button again, the indicator 
lamp goes out.
HDC is automatically deactivated once 
the vehicle accelerates to more than 
35 mph (60 km/h) as well as whenever 
you switch off the ignition.
Using HDCVehicles with manual transmission: 
You should always ensure that either 
reverse or first gear is engaged before 
using HDC, as the engine's braking 
effect is most pronounced in these 
gears, and only reduced engine braking 
is available in higher gears.
Vehicles with automatic transmission: 
HDC is available for use in all ranges.System malfunctionis signalled by the indicator lamp, which 
responds to problems by going out 
while HDC is in operation or by failing 
to come on when you activate the 
system: 
HDC has been temporarily deactivated 
as a result of high brake temperatures. 
If the DSC indicator lamp comes 
on at the same time: 
Malfunction in HDC and DSC 
system. Refer the problem to your 
BMW center. 

79n
OverviewControlsMaintenanceRepairsDataIndex
Tire Pressure Monitor (RDC)
*
In the event of a flat tireIf there is a tire failure with loss of pres-
sure, a red light will appear in the indi-
cator lamp. In addition, an acoustic 
signal is sounded.
If this occurs, reduce vehicle speed 
immediately and stop the vehicle in a 
safe location. Avoid hard brake applica-
tions. Do not oversteer. Replace the 
wheel and flat tire.
The space-saver spare tire is 
provided for temporary use only in 
the case of a tire failure. It does not 
have RDC electronics and is not moni-
tored. The spare tire
 that has the same 
dimensions as the tires already 
mounted on the vehicle is equipped 
with the necessary RDC electronics 
and will be also monitored once the 
tires have been mounted and the 
system activated.<
RDC cannot alert you to severe 
and sudden tire damage caused 
by external factors.<
Have the tires changed by your 
BMW center.
Your BMW center has the information 
needed for working with RDC and is 
equipped with the necessary special 
tools.<
System interferenceLocal devices using the same radio 
frequency can interfere with RDC.
The yellow indicator lamp will come on 
during the malfunction. 
The indicator lamp also comes on
>in the event of a system fault 
>if a wheel is mounted without the 
appropriate electronics 
>if, in addition to the spare tire, addi-
tional wheels with RDC electronics 
are on board.
Please contact your BMW center for 
additional information. 

81n
OverviewControlsMaintenanceRepairsDataIndex
Flat Tire Monitor
*
To activate/deactivate the systemThe Flat Tire Monitor automatically 
assumes operation whenever you turn 
the ignition key to position 2. Unless 
manually deactivated, it is always on 
during normal vehicle operation.
To deactivate the system: press the 
button, the yellow indicator lamp comes 
on.
To activate the system: press the 
button again, the indicator lamp goes 
out.
You should deactivate the system 
before driving with snow chains, as the 
chains can generate spurious warnings 
and/or prevent the system from 
detecting actual pressure loss. 
Flat tire warning
The red warning lamp in the 
instrument cluster lights up to 
warn of pressure loss and tire 
failure. This visual alert is accompanied 
by an acoustic warning signal. Reduce 
your speed immediately, and steer and 
brake gently as you bring the vehicle to 
a stop. 
To reset the warning lamp: after 
replacing the damaged tire you will 
need to reset the red warning lamp 
manually: maintain pressure on the Flat 
Tire Monitor button until the warning 
lamp goes out. Then reinitialize the 
system.
The Flat Tire Monitor cannot 
provide you with advance warning 
of sudden and severe tire damage 
caused by external factors.
The system also does not detect the 
gradual and minor loss of pressure that 
all tires display over extended periods 
of time.<
Check tire inflation pressures on a 
regular basis, correcting them as 
necessary, refer to page 24.
The system may respond to operation 
on slippery or snow-covered road 
surfaces with false warnings or delays 
in detecting actual pressure loss.
Performance-oriented driving (slip at 
the drive wheels, high rates of lateral 
acceleration) can also increase the time 
that the Flat Tire Monitor requires to 
detect a flat.<
System malfunctionsThe yellow indicator lamp in the instru-
ment cluster lights up and remains on 
until the problem is corrected.
Please refer the problem to your BMW 
center.