2001 BMW 540I SEDAN engine coolant

Contents

Overview
Controls and features

Cockpit16
Instrument cluster18
Indicator and warning lamps22
Multifunction steering wheel
(MFL) 25
Sports steering wheel26
Hazard warning flashers27
Warning triangle 27
First-aid kit 27
Refueling28
Fuel specifications29
Tire inflation pressure29

Locks and security systems:

Keys36
Electronic vehicle
immobilizer37
Opening and closing –
from the outside38
With the key38
With the remote control39
Opening and closing –
from the inside42
Luggage compartment lid/
Tailgate43
Rear window43
Luggage compartment46
Alarm system47
Electric power windows49
Sliding/Tilt sunroof50

Adjustments:

Seats52
Steering wheel56
Mirrors56
Seat, mirror and steering wheel
memory58
Car Memory, Key Memory60

Passenger safety systems:

Safety belts61
Airbags62
Transporting children safely66

Driving:

Steering/Ignition lock68
Starting the engine68
Switching off the engine69
Parking brake70
Manual transmission70
Automatic transmission72
Automatic transmission with
Steptronic75
Indicator/Headlamp flasher78
Wiper/Washer system78
Rear window defroster80
Cruise control81

Everything under control:

Odometer, outside temperature
display83
Tachometer84
Energy control84
Fuel gauge84
Coolant temperature gauge85
Service Interval Display85
Check Control86
Computer89
Multi-information display
(MID)91
Digital clock in the MID92
Computer in the MID95

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

19n

Instrument cluster

There are two versions, depending on
the equipment on your vehicle.
1 Fuel gauge with indicator lamp for
fuel reserve84
2 Indicator lamp for turn signals24
3 Speedometer
4 Indicator lamp for high beams24
5 Tachometer and
Energy Control84
6 Coolant thermometer with
"Coolant temperature too high"
warning lamp85
7 Indicator and warning lamps for:

>

Parking brake/Brake hydraulic
system, Dynamic Brake Control
(DBC)

*
22, 23

>

Antilock Brake System (ABS)23

>

Brake pads23

>

Tire Pressure Control (RDC)

*
23

>

Airbags23

>

Automatic transmission

*
23

>

Please fasten safety belts23

>

Cruise control24
8 Selector lever and program display
for automatic transmission

*
72, 75
9 Service Interval Display8510 Display for the computer
(operation via the turn signal lever,
refer to page 89):

>

Outside temperature

>

Average fuel consumption

>

Cruising range

>

Average speed
11 Indicator lamp for Automatic
Stability Control plus Traction
(ASC+T)/Dynamic Stability
Control (DSC)

*
24
12 Indicator lamp for level control
system

*
23
13 Odometer and trip odometer83
14 Indicator for Check Control86
15 Reset button for trip odometer83
16 Indicator and warning lamps for:

>

Fog lamps24

>

Battery charge current22

>

Engine oil level/Engine oil
pressure22, 23

>

Engine electronics24

>

Service Engine Soon24

IndexDataTechnologyRepairsCar careControlsOverview
21n

Instrument cluster

*
There are two versions, depending on
the equipment on your vehicle.
1 Fuel gauge with indicator lamp for
fuel reserve84
2 Indicator lamp for turn signals24
3 Speedometer
4 Indicator lamp for high beams24
5 Tachometer and
Energy control84
6 Coolant temperature gauge85
7 Indicator and warning lamps for:

>

Parking brake 23

>

Brake hydraulic system, Dynamic
Brake Control (DBC)

*
22, 23

>

Antilock Brake System (ABS)23

>

Airbags23

>

Please fasten safety belts23

>

Cruise control24
8 CHECK button86
9 Selector lever and program display
for automatic transmission

*
72, 7510 Outside temperature display83
11 Indicator lamp for Automatic
Stability Control plus Traction
(ASC+T)/Dynamic Stability
Control (DSC)

*
24
12 Trip odometer83
13 Check Control display86
14 Odometer83
15 Service Interval Display85
16 Reset button for trip odometer83
17 Indicator and warning lamps for:

>

Fog lamps24

>

Battery charge current22

>

Engine oil pressure22

>Service Engine Soon24

34n
Locks and security systems:
Keys 36
Electronic vehicle immobilizer 37
Central locking system 38
Opening and closing –
from the outside 38
With the key 38
With the remote control 38
Opening and closing – from the inside 42
Luggage compartment lid/ Tailgate 43
Rear window 44
Luggage compartment 46
Alarm system 47
Electric power windows 49
Sliding/Tilt sunroof 50
Adjustments:
Seats 52
Steering wheel 56
Mirrors 56
Seat, mirror and steering wheel memory 58
Car Memory, Key Memory 60
Passenger safety systems:
Safety belts 61
Airbags 62
Transporting children safely 66Driving:
Steering/Ignition lock
68
Starting the engine 68
Switching off the engine 69
Parking brake 70
Manual transmission 70
Automatic transmission 72
Automatic transmission with Steptronic 75
Indicator/Headlamp flasher 78
Wiper/Washer system 78
Rear window defroster 80
Cruise control 81
Everything under control:
Odometer, outside temperature display 83
Tachometer 84
Energy control 84
Fuel gauge 84
Coolant temperature gauge 85
Service Interval Display 85
Check Control 86
Computer 89
Multi-information display (MID) 91
Digital clock in the MID 92
Computer in the MID 95

IndexDataTechnologyRepairsCar careControlsOverview
85n
Coolant temperature gauge Service Interval DisplayBlueThe engine is still cold. Drive at moder-
ate engine and vehicle speeds.RedWhen you switch on the ignition, the
warning lamp
* comes on briefly to con-
firm that the system is operational.
If the the warning lamp lights up while
driving, or the message "Coolant tem-
perature" shows up in the Check Con-
trol
*, then the engine has overheated.
Switch the engine off immediately and
allow it to cool down.390de007
Between the blue and red zonesNormal operating range. It is not un-
usual for the needle to rise as far as the
edge of the red zone in response to
high outside temperatures or severe
operating conditions.
Checking coolant level: refer to
page 167.
The precise layout varies according to
the individual model version.
Green lampsThe number of illuminated lamps de-
creases as the time for your next main-
tenance visit approaches.Yellow lampThis field appears together with
OILSERVICE or INSPECTION.
Maintenance is due. Please contact
your BMW center for an appointment.Red lampThe maintenance deadline has been
passed.390us702

IndexDataTechnologyRepairsCar careControlsOverview
87n
Check Control>RELEASE PARKINGBRAKE
>COOLANT TEMPERATURE
The coolant is overheated. Stop the
vehicle immediately and switch off
the engine. Refer to pages 85
and 16 7.
>STOP!ENGINE OILPRESS
The oil pressure is too low. Stop the
vehicle immediately and switch off
the engine. Refer to page 22.
>CHECK BRAKE FLUID
Indicates that brake fluid is down to
roughly minimum level. Top up the
brake fluid at the next opportunity.
Refer to page 168. Have the source
of the brake fluid loss diagnosed and
corrected by your BMW center.
>TIRE DEFECT
*
Reduce vehicle speed immediately
and stop the vehicle. Avoid hard
brake applications. Do not oversteer.
Refer to page 104.
>SELFLEVEL SUSP.INACT
Please consult the nearest authorized
BMW center. Refer to page 148.
>SPEED LIMIT
*
Display if the programmed speed
limit has been exceeded.Priority 2
These displays appear for 20 seconds
when the ignition key is turned to posi-
tion 2. The warning symbols remain
after the message disappears. You can
display the messages again by pressing
the CHECK button 3:
>TRUNKLID OPEN
Message appears only when the
vehicle is initially set in motion.
>DOOR OPEN
This message appears after a mini-
mal defined road speed has been ex-
ceeded.
>FASTEN SEAT BELTS
*
In addition to this message, a
warning lamp with the safety belt icon
appears and an acoustical signal
sounds.
>WASHER FLUID LOW
Too low; top up fluid at the next
opportunity. Refer to page 164.
>CHECK ENGINE OIL LEV
The oil level is at the absolute mini-
mum, and therefore engine oil should
be added as soon as possible. Refer
to page 165. Until then, do not drive
more than approx. 30 miles (50 km)>CHECK FILLER CAP
Check that the filler cap is closed
correctly, refer to page 28. A loose or
missing cap will activate the message
"CHECK FILLER CAP" in the Check
Control
* or the Service Engine Soon
lamp.
>OUTSIDE TEMP. +207 (–56)
This display is only an example. The
current temperature is displayed at
outside temperatures of +37.57
(+36) and below. Refer also to
page 83.
>SET TIRE PRESSURE
*
The RDC has imported the current in-
flation pressure in the tires as the tar-
get values which the system will
monitor. Refer to page 103.
>CHECK TIRE PRESSURE
*
Check and correct the tire inflation
pressure to specifications at the earli-
est opportunity (next stop for fuel).
Refer to page 104.
>TIRECONTROL INACTIVE
*
A temporary interference of the RDC
or a system fault. Refer to page 104.
>CHECK BRAKE LIGHTS
A lamp has failed or the electrical cir-
cuit has a fault. Refer to pages 186
and 196 or consult a BMW center.

88n
Check Control>CHECK LOWBEAM LIGHTS
CHECK SIDE LIGHTS
CHECK REAR LIGHTS
CHECK FRONT FOGLAMPS
CHECK LICPLATE LIGHT
CHECK HIGHBEAM LIGHTS
CHECK BACK UP LIGHTS
Defective bulb or circuit. Refer to
pages 183 and 196 or consult your
BMW center.
>TRANS. FAILSAFE PROG
Please consult the nearest BMW
center. Refer to pages 74, 77.
>CHECK BRAKE LININGS
Have the brake pads inspected by
your BMW center. Refer to page 146.
>CHECK COOLANT LEVEL
Coolant too low, top up at the next
opportunity. Refer to page 167.
>ENGINE FAILSAFE PROG
*
The electronics allow for continued
driving with reduced engine output or
rpms.
Please have the system inspected by
your BMW center.
Displays after completion of tripAll of the malfunctions registered during
the trip appear consecutively when the
key is turned to position 0.
One of the following displays may ap-
pear:
>LIGHTS ON
>KEY IN IGNITION LOCK
>CHECK ENGINE OIL LEV
Add engine oil at the next opportunity
(next stop for fuel). Refer to page 16 5.
Display appears when you open the
driver's door after parking the vehicle.
A supplementary gong is also heard.
Status reports remain available for a
period of approx. three minutes after
the display goes out and the key is re-
moved from the ignition. Press the
CHECK button. If there were multiple
reports, press the CHECK button re-
peatedly to view them all in sequence.
To check the Check ControlPress the CHECK button 3 with the
ignition key in position 2:
CHECK CONTROL OK appears in the
display.
No malfunctions are present in the
monitored systems.
You can have the Check Control
messages displayed in a different
language.<