Contents
Operation, care and maintenance
Owner service procedures
Advanced technology
Under the hood:
Hood159
Engine compartment160
Washer fluids164
Washer nozzles164
Engine oil165
Coolant167
Brake fluid168
Vehicle Identification
Number169
Care and maintenance:
The BMW Maintenance
System170
Caring for your car171
Airbags176
Vehicle storage176
Laws and regulations:
Technical modifications177
California Proposition
65 Warning177
OBD interface socket178
Replacement procedures:
Onboard tool kit182
Wiper blades182
Lamps and bulbs183
Changing a wheel190
Battery193
Fuses196
In case of electrical
malfunction:
Fuel filler door198
Sliding/Tilt sunroof198
Tailgate199
Assistance, giving and
receiving:
Jump-starting200
Towing the vehicle201Airbags206
Adaptive Transmission Control
(ATC)207
Automatic Stability Control plus
Traction (ASC+T)/Dynamic
Stability Control (DSC)208
BMW active seat210
Safety belt tensioner210
DSP sound system211
Mirrors with automatic
dimmer211
Rain sensor212
Tire Pressure Control (RDC)213
Integrated rear suspension214
Level control system214
Xenon lamps215
IndexDataTechnologyRepairsCar careControlsOverview
69n
Starting the engine Switching off the engineStarting the engine>Start the engine. Do not press the
accelerator pedal.
Do not actuate the starter for too
short a time. Do not turn it for
more than approx. 20 seconds. Release
the ignition key immediately as soon as
the engine starts.
Do not allow the engine to warm up by
leaving it running while the vehicle re-
mains stationary. Instead, begin driving
immediately at a moderate engine
speed.
BMW 540i with automatic transmission:
Your BMW is equipped with the conve-
nience starting feature. Simply turn the
key to position 3 (starter) and then re-
lease it immediately.
The starter continues to operate auto-
matically.
The automatic starting mode will not
operate if the battery voltage is low.
Should this condition arise, it remains
possible to jump-start the engine (refer
to page 200).<
Should the engine fail to 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 starts at extremely low tempera-
tures, from approx. +57 (–156)
and at elevations above 3,300 ft
(1,000 meters):
>Be sure to let the starter remain
engaged somewhat longer the first
time (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 start-up are normal and
should decrease as the engine warms
up. If engine speed does not decrease,
service is required.
To prevent the battery from discharg-
ing, always deactivate electrical de-
vices which are not in use. Switch the
ignition off when the vehicle is not
being driven.Turn the ignition key to position 1 or 0.
Never remove the ignition key
while the vehicle is rolling. The
steering locks, making it impossible to
steer the vehicle.
Always remove the ignition key and en-
gage the steering lock before leaving
the vehicle.
Vehicles with manual transmission:
Always engage the parking brake
when parking on slopes and inclined
surfaces, since not even 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."<
Vehicles with automatic transmission
*:
The vehicle must be stationary and the
selector lever in "Park" before you can
remove the ignition key.
74n
Automatic transmission
*
Electronic transmission control
module
If the indicator lamp comes on
or if the message "TRANS.
FAILSAFE PROG" appears in
the Check Control
*, there is a malfunc-
tion in the transmission system.
Bring the vehicle to a stop, select the
"Park" position, apply the parking brake
and shut the engine off (ignition key po-
sition 0). Restart the engine after a few
seconds. If the indicator lamp goes out
again after a few seconds, the normal
transmission functions have been re-
stored. You may continue to drive as
usual.
If the indicator lamp does not go out,
you can place the selector lever in all
positions. However, the vehicle will now
only drive forward with limited gear
selection.
Under these circumstances, avoid ex-
treme engine loads and consult the
nearest BMW center.
Do not work in the engine com-
partment when a drive gear (for-
ward or reverse) is engaged. If you do
this, the vehicle could move.<
For jump-starting, towing and tow-
starting, refer to pages 200 and 201.
IndexDataTechnologyRepairsCar careControlsOverview
77n
Automatic transmission with Steptronic
*
Upshifts or downshifts will be carried
out by the ATC only at appropriate
engine speeds and road speeds. For
instance, if engine speed is too high, a
downshift will not be executed. The
gear selected will appear briefly in the
instrument cluster followed by the
current gear.
If you are driving in the manual
mode and wish to accelerate
rapidly from low road speeds (when
passing, for instance), you must shift
down manually or with the "Kickdown"
function.<
You can only change from "M/S" to
selector lever positions "P," "R," and
"N" via the "D" position.
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 RPM cutoff point
>At low speeds, the transmission
shifts down automatically – you do
not have to act.
>In the "Kickdown" mode, the trans-
mission shifts down to the lowest
gear which is 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.Electronic transmission control
module
If the indicator lamp comes on
or the message "TRANS.FAIL-
SAFE PROG" appears in the
Check Control
*, there is a fault in the
transmission system.
Bring the vehicle to a stop. Move the
transmission selector lever to "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, you can
place the selector lever in all positions.
However, the vehicle will now only drive
forward with limited gear selection.
If this happens, avoid extreme engine
loads and consult the nearest BMW
center.
Do not work in the engine com-
partment when a drive gear (for-
ward or reverse) is engaged. If you do
this, the vehicle could move.<
For jump-starting, towing and tow-
starting, refer to pages 200 and 201.
IndexDataTechnologyRepairsCar careControlsOverview
117n
Automatic climate control
*
Air supply
In the "AUTO" program, the
airflow is controlled automati-
cally. AUTO will appear in the display 9
(refer to the overview on page 114).
Use "+" and "– " to vary the airflow.
When your setting is displayed by bars,
the automatic airflow is switched off.
Automatic air distribution maintains its
setting. You can reactivate the auto-
matic airflow by pressing the "AUTO"
button.
When you press "– " during operation at
minimum blower speed all displays are
canceled: the blower, heating and air
conditioner are switched off. The out-
side air supply is closed. By pressing
any button of the automatic climate
control (except the "MAX" button 16),
you can switch the system back on.
To defrost windshield and
windows
This program quickly re-
moves ice and condensation
from the windshield and the side win-
dows.
Air conditioner
The air is cooled and dehu-
midified and – depending on
the temperature setting – warmed again
when the air conditioner system is
switched on. Depending on the
weather, the windshield may fog over
briefly when the engine is started.
Use the button to switch off the air con-
ditioner at outside temperatures below
approx. +417 (+56). 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, which then exits under the vehicle.
Traces of condensed water of this kind
are thus normal.<
Maximum cooling
You will get maximum
cooling capacity using this
program if the engine is running and
the outside temperature is above
+41 7(+5 6).
The temperature display 9 jumps to
+61 7 (+16 6), the system switches
over to the recirculated-air mode, and
the air will only stream out of the venti-
lation grill with the maximum amount of
air flow. That is why you need to keep
these open if you select this program.
Automatic recirculated-air
control (AUC)
You can respond to unpleas-
ant external odors by tempo-
rarily stopping the flow of outside air.
The system then recirculates the air
currently within the vehicle. Press the
button repeatedly to run through the
following control sequence:
>Indicator lamps off: outside airflow
operational.
Index
Data
Technology
Repairs
Car care
Controls
Overview
161n
1 Auxiliary terminal for jump starting 200
2 Reservoir for brake fluid (under the housing of the microfilter) 168
3 Engine oil dipstick 165
4 Coolant expansion tank 167
5 Engine oil filler neck 165
6 Reservoir for intensive-cleaning system
*164
7 Reservoir for windshield and headlamp washer system
*164
Engine compartment – BMW 525i, 530i
Index
Data
Technology
Repairs
Car care
Controls
Overview
163nEngine compartment – BMW 540i
1 Reservoir for brake fluid (under the
housing of the microfilter) 168
2 Auxiliary terminal for jump starting 200
3 Engine oil dipstick 165
4 Engine oil filler neck 165
5 Coolant expansion tank 167
6 Reservoir for intensive-cleaning system
*164
7 Reservoir for headlamp washer
* and
windshield washer system 164
Index
Data
Technology
Repairs
Car care
Controls
Overview
Overview
Controls and features Operation, care
and maintenance
Owner service procedures
Technical dataIndex
Advanced technology
181
n
Replacement procedures:
Onboard tool kit 182
Wiper blades 182
Lamps and bulbs 183
Changing a wheel 190
Battery 193
Fuses 196
In case of electrical
malfunction:
Fuel filler door 198
Sliding/Tilt sunroof 198
Tailgate 199
Assistance, giving and
receiving:
Jump-starting 200
Towing the vehicle 201