
 
18
 
Indicator and warning lamps
 
Technology that monitors itself
 
Indicator and warning lamps that are 
identified by 
 
●
 
 are tested for proper 
functioning whenever the ignition key is 
turned. They each light up once for dif-
ferent 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 in the 
following section.
 
Red: stop immediately
 
Battery charge current
 
●
 
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 seri-
ous engine damage. If the drive belt is 
defective, increased steering effort is 
also required.
 
<
 
Engine oil pressure
 
●
 
Stop the vehicle immediately 
and switch off the engine. 
Check the engine oil level and top off as 
required. If the oil level is correct: 
please contact the nearest BMW cen-
ter.
Do not continue driving, as the 
engine could sustain serious dam-
age from inadequate lubrication.
 
<
 
Brake warning lamp
 
●
 
If the lamp comes on when the 
parking brake is not engaged: 
check the brake fluid level. Before driv-
ing further, be sure to comply with the 
instructions on pages 122 and 135.
Brake warning lamp for Cana-
dian models.
Flat Tire Monitor
 
●
 
In addition, an acoustic signal is 
sounded: there is a flat tire. 
Reduce speed and carefully come to a 
stop. Avoid sudden braking and steer-
ing maneuvers.
For additional information: refer to 
page 91
 
Red and yellow: continue driving 
cautiously
 
The brake warning lamp comes 
on together with the yellow indi-
cator lamps for ABS
 
●
 
 and 
DSC:
The entire ABS, CBC, DSC and 
ADB-X/DBC control system has 
failed. Continue driving cau-
tiously and defensively. Avoid 
full brake applications. Please have the 
system checked by your BMW center 
as soon as possible.
Additional information beginning on 
page 86
CBC, ABS, DSC and 
ADB-X/DBC indicator and warn-
ing lamps for Canadian models.
 
Red: an important reminder
 
Brake warning lamp
 
●
 
Comes on when the parking 
brake is engaged – an additional 
acoustic signal sounds when starting 
off. For additional information: refer to 
page 65 

 
20
Dynamic Stability Control (DSC) 
and brake warning lamp
 
●
 
The indicator lamps remain on:
DSC/DTC have been switched 
off with the button or are faulty.
Please consult the nearest BMW 
center.
Additional information beginning on 
page 86
325xi:
DSC and ADB-X system malfunction. 
There is no provision for switching off 
ADB-X.
Please consult the nearest BMW cen-
ter.
DSC indicator and brake warn-
ing lamps for Canadian models.
Dynamic Brake Control (DBC)
 
●
 
Malfunction in DBC system. 
Conventional braking efficiency 
is available and unrestricted.
Have the system repaired at your BMW 
center as soon as possible.
Additional information beginning on 
page 121
 
Dynamic Brake Control (DBC) 
warning lamp for Canadian 
models.
Add washer fluid
The washer fluid level is too low. 
Top off the fluid at the earliest 
opportunity.
For additional information: refer to 
page 132
CHECK GAS CAP*
 
●
 
This indicator lamp comes on 
when the gas cap is loose or 
missing.
Close the gas cap tightly: refer to 
page 24
SERVICE ENGINE SOON
 
●
 
If the indicator lamp comes on 
either continuously or intermit-
tently, this indicates a fault in the emis-
sions-related electronic systems. 
Although the vehicle remains opera-
tional, you should have the systems 
checked by your BMW center at the 
earliest possible opportunity.
For additional information: refer to 
page 138
Service Engine Soon
indicator lamp for Canadian 
models.
 
Engine electronics
 
●
 
There is a fault in the electronic 
engine-management system. 
You can continue to drive with reduced 
engine output or engine speed. Please 
have the system inspected at your 
BMW center.
Add coolant
The coolant level is too low. Add 
coolant at the earliest opportu-
nity.
For additional information: refer to 
page 134
 
Green: for your information
 
Turn signal indicator
Flashes when the turn signals 
are on.
Rapid flashing indicates a system mal-
function.
For additional information: refer to 
page 74
Cruise control
Lights up when the cruise con-
trol is activated: ready for oper-
ation via the buttons in the steering 
wheel.
For additional information: refer to 
page 77
 
Indicator and warning lamps 

 
21
Front fog lamps
Lights up whenever you switch 
on the fog lamps.
For additional information: refer to 
page 95
 
Blue: for your information
 
High beams
Comes on when the high beams 
are on or the headlamp flasher 
is actuated.
For additional information: refer to 
pages 74, 94
 
Indicator and warning lamps
 
OverviewControlsMaintenanceRepairsDataIndex 

39
armed: an attempted entry has been 
detected in the period since the sys-
tem was armed.
Following triggering of an alarm, the 
indicator lamp will flash continuously.Avoiding unintentional alarmsThe tilt alarm sensor and interior motion 
sensor may be switched off at the same 
time. You can do this to prevent a false 
alarm from being triggered in garages 
with elevator ramps, for instance, or 
when the vehicle is transported by train:
Lock the vehicle twice to arm the sys-
tem. Press the button on the remote 
control twice in succession or lock the 
vehicle twice with the key.
The indicator lamp lights up briefly and 
then flashes continuously. The tilt alarm 
sensor and the interior motion sensor 
are deactivated as long as the system is 
armed.
You can have the tilt alarm sensor 
and the interior motion sensor 
permanently deactivated.<
Interior motion sensorIn order for the interior motion sensor to 
function properly, the windows and the 
glass sunroof must be completely 
closed.
Nevertheless, you should deactivate 
the interior motion sensor, refer to 
Avoiding unintentional alarms, if
>persons or animals are left in the 
vehicle
>the windows or the glass sunroof are 
being left open.
The system deactivates the tilt-
alarm sensor and the interior 
motion sensor if the convenience clos-
ing of windows and the glass sunroof is 
interrupted in the first 10 seconds and 
then restarted. The alarm must then be 
disarmed and reactivated before it will 
resume operation.<
Alarm system*
OverviewControlsMaintenanceRepairsDataIndex 

56
This is the right way a larger child 
should sit wearing the seat belt when 
rear side airbags are provided.Indicator lamp
The indicator lamp indicates the 
operational status of the airbag 
system with the ignition key in 
position 1 or higher.
System operational:
>The indicator lamp comes on briefly 
when you turn the ignition key to 
position 1 or higher.
System malfunction:
>The indicator lamp does not come on 
or
>the indicator lamp lights up continu-
ously.
If there is a system malfunction, there is 
a risk that the airbags will not be trig-
gered within their normal response 
range, even if the level of impact would 
normally have triggered them.
Have your BMW center inspect the air-
bag system immediately.
Airbags 

70
Sport programYou can choose between two driving 
programs: smoothly dynamic or Sport. 
With the Sport program, gearshifts are 
faster in sequential mode and the shift 
points are adapted in drive mode.
To activate the Sport program: press 
the SPORT button. The LED in the but-
ton lights up.Acceleration assistantThe acceleration assistant permits opti-
mum racing-style acceleration on roads 
with good grip.
Do not use the acceleration assis-
tant frequently as this could other-
wise cause premature wear of the com-
ponents.<
1. Activate the Sport program
2. Press and hold the DSC button, refer 
to page 86, for more than three sec-
onds
3. Quickly press the accelerator pedal 
down fully: kickdown. The optimum 
rpm for driving off will be adjusted.
To maintain vehicle stability, 
always drive with the DSC acti-
vated whenever possible.<
Sequential manual gearbox SMG* 

80
Fuel gaugeOnce the indicator lamp stays on con-
tinuously, there are still approx. 
2 gallons/8 liters of fuel in the fuel tank.
Fuel tank capacity approx. 
16.6 gallons/63 liters
Certain operating conditions, such as 
those encountered in mountainous 
areas, may cause the needle to fluctu-
ate slightly.
Fill the fuel tank before it is com-
pletely empty. Driving to the last 
drop of fuel can prevent the engine 
from operating properly and result in 
damage.<
When you switch on the ignition, the 
indicator lamp lights up briefly as an 
operation check.
Engine coolant temperature gaugeBlueThe engine is still cold. Drive at moder-
ate engine and vehicle speeds.Between the blue and red zonesNormal operating temperature. The 
needle may rise as far as the edge of 
the red sector in normal operation.RedWhen you switch on the ignition, the 
warning lamp comes on briefly to con-
firm that the system is operational.
If the lamp comes on during normal 
vehicle operation: the engine has over-
heated. Switch off the engine immedi-
ately and allow it to cool down.
To check coolant level, refer to 
page 134. 

91
Flat Tire Monitor*The conceptAs you drive, the Flat Tire Monitor 
keeps track of pressure levels in all four 
tires. The system alerts you whenever 
the inflation pressure of a tire falls sig-
nificantly below the pressure of another 
tire.
The system actually detects pressure 
loss by monitoring differences in the 
relative speeds of the four wheels. It 
interprets variations outside specified 
limits as severe pressure loss, and then 
responds by generating a warning.Functional requirementsIn order for the Flat Tire Monitor to learn 
the correct tire inflation pressure, 
please do the following:
1. Check the tire inflation pressures in 
all tires
2. Compare them with the tire inflation 
pressure table on page 26 and cor-
rect them, if necessary
3. Initialize the system.
System limitations
The Flat Tire Monitor cannot pro-
vide you with advance warning of 
sudden and severe tire damage caused 
by external factors and does not detect 
the balanced and very gradual pressure 
loss that takes place in all four tires 
over an extended period of time.<
On the other hand, the following situa-
tions can lead to a delayed detection of 
pressure loss and even to the system 
not functioning:
>Driving on snow-covered or slippery 
roads 
>Performance-oriented driving: slip at 
the drive wheels, high levels of lateral 
acceleration
>When driving with snow chains, false 
warnings and undetected pressure 
losses may occur
>When driving with a space-saver 
spare tire, the Flat Tire Monitor can-
not function.
Initializing the system
Each time you correct the pres-
sure in a tire, or change a wheel or 
tire, reinitialize the system immediately 
afterwards. This requires a bit of driv-
ing.<
1. Before driving off, start the engine 
but do not start driving
2. Press the button as long as you need 
to until the yellow indicator lamp in 
the instrument cluster lights up for a 
few seconds
3. Drive off.
It takes a few minutes before the Flat 
Tire Monitor can detect a flat tire and 
issue a warning.
OverviewControlsMaintenanceRepairsDataIndex