2001 BMW 540I SEDAN check engine

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

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

22n
Indicator and warning lampsTechnology that monitors itselfMany 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 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. There is a malfunction
of the alternator V-belt or in the charg-
ing circuit of the alternator. Please con-
tact the nearest BMW center.
If the ribbed V-belt is defective, do
not continue driving. The engine
could be damaged due to overheating.
If the ribbed V-belt is defective, in-
creased steering effort is also re-
quired.<
Engine oil pressure l
Comes on while the engine is
running and the "STOP!ENGINE
OILPRESS" message appears in the
Check Control: stop vehicle immedi-
ately and switch off engine. Check level
of oil in engine, top up as required. If oil
level is correct: please contact the
nearest BMW center.
Do not continue driving. The en-
gine could be damaged because
of inadequate lubrication.<
Tire Pressure Control (RDC)
* l
In addition, there is an acousti-
cal warning signal: a tire failure
has occurred. Reduce vehicle speed
immediately and stop the vehicle. Avoid
hard brake applications. Do not over-
steer. For additional information: refer
to page 103.
Parking brake
*,
brake hydraulic system l
Comes on when you engage the
parking brake. For additional informa-
tion: refer to page 70.
Comes on although the parking brake is
released: have the brake fluid level
checked. Before driving further, be
sure to read the notes on pages 146
and 168.
Also comes on with the message
"CHECK BRAKE PADS" in the Check
Control.
Parking brake* warning lamp/
Brake hydraulic system for
Canadian models.

IndexDataTechnologyRepairsCar careControlsOverview
23n
Indicator and warning lampsRed: an important reminder
Parking brake
*
Comes on when you engage the
parking brake.
For additional information: refer to
page 70.
Parking brake
* warning lamp
for
Canadian models.
Please fasten safety belts l
Together with an acoustic signal
or a message
* in the Check
Control. Comes on until the safety belts
are fastened. For additional information
on safety belts: refer to page 61.
Airbags l
Please have the system in-
spected by your BMW center.
For additional information: refer to
page 62.
Yellow: check as soon as possible
Antilock Brake System (ABS) l
ABS has been deactivated in
response to system malfunction.
Conventional braking efficiency is avail-
able without limitations. Please have
the system inspected by your BMW
center.
For additional information: refer to
page 143.
Antilock Brake System (ABS)
warning lamp for Canadian
models.
Engine oil level
*
Comes on while driving: the oil
level is at the absolute mini-
mum; refill as soon as possible. Do not
drive more than approx. 30 miles
(50 km) until you add oil.
For additional information: refer to
page 165.
Engine oil level
*
Comes on after the engine has
been shut off: add oil at the
earliest opportunity (when you stop to
refuel).
For additional information: refer to
page 165.
Automatic transmission
*
Because of a malfunction, the
automatic transmission shifts
only in the emergency program. Please
consult the nearest BMW center.
For additional information: refer to
pages 74, 77.
Brake pads
* l
Have the brake pads checked.
For additional information: refer
to page 146.
Dynamic Brake Control
(DBC)
* l
Fault in the DBC system. Con-
ventional braking efficiency is available
without limitations.
For additional information: refer to
page 145.
Dynamic Brake Control (DBC)
warning lamp for Canadian
models.
Tire Pressure Control (RDC)
* l
Check the tire inflation pressure.
Refer to pages 29, 103.
Level control system
* l
The level control system is
inactive. Please consult the
nearest BMW center.
For additional information: refer to
page 148.

24n
Indicator and warning lamps
Automatic Stability Control plus
Traction (ASC+T)/Dynamic Sta-
bility Control (DSC)
* l
The ASC+T/DSC has been switched off
or has been deactivated because of a
malfunction. In the event of a malfunc-
tion, have the system checked by your
BMW center.
For additional information: refer to
page 102.
Engine electronics
*
There is a fault in the engine's
electronic control system. The
electronics allow for continued driving
with reduced engine output or rpms.
Please have the system inspected by
your BMW center.
Service Engine Soon l
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 178.
Service Engine Soon warning
lamp for Canadian models.
Green: for your information
Turn signal
Flashes when the turn signals
are in operation. Rapid flashing
indicates a system malfunction.
For additional information: refer to
page 78.
Cruise control
Lights up when the cruise con-
trol is activated. Available for
operation via the multifunction steering
wheel.
For additional information: refer to
page 81.
Fog lamps
Lights up whenever you switch
on the fog lamps.
For additional information: refer to
page 106.
Blue: for your information
High beams
Lights up when the high beams
are on or the headlamp flasher
is actuated.
For additional information: refer to
pages 78 and 106.

28n
RefuelingFuel filler door
Before refueling, shut the engine
off. If the engine is running, fuel
cannot be filled into the tank and the
Service Engine Soon lamp may come
on.<
To open the filler door, press on the
front edge.
To unlock the filler door if the central
locking system fails, refer to page 198.
When handling fuels, comply with
all of the applicable safety precau-
tions and regulations pertaining to
fuels.
Never carry spare fuel containers in
your vehicle. Whether empty or full,
these containers can leak, cause an ex-
plosion, or lead to fire in the event of a
collision.< 394de011
Simple and friendly to the environment
Open the filler cap carefully to
prevent fuel from spraying out.
Fuel spray may cause injury.
Do not top off. Topping off may cause
fuel spillage.<
Keep the filler cap in the bracket
attached to the fuel filler door.390de603
When refueling, insert the filler nozzle
completely into the filler pipe. Pulling
the nozzle out of the pipe during refuel-
ing
>results in premature pump shutoff
>and will reduce the effect of the vapor
recovery system on the pump.
As long as the filler nozzle is used prop-
erly, the fuel tank is full whenever the
nozzle shuts off the first time.
Tank capacity: refer to page 223.
Close the filler cap carefully after
refueling until a "click" is heard.
While closing, be sure not to squeeze
the strap which is fastened to the cap.
A loose or missing cap will activate the
message "CHECK FILLER CAP" in the
Check Control
* or the Service Engine
Soon lamp.<

IndexDataTechnologyRepairsCar careControlsOverview
29n
Fuel specifications Tire inflation pressureThe engine uses lead-free gasoline
only.
Required fuel:
>Premium Unleaded Gasoline,
min. 91 AKI
AKI = Anti Knock Index
Do not use leaded fuels. The use
of leaded fuels will cause perma-
nent damage to the system's oxygen
sensor and the catalytic converter.<
The inflation pressures are indicated on
a sticker attached to the B-pillar behind
the driver's door (visible with door
open).Check tire pressuresAll pressure specifications are indicated
in psi (kilopascal) for tires at ambient
temperature (refer also to the next
pages).
For vehicles with Tire Pressure Control
(RDC)
*:
After a correction of the tire inflation
pressure, reactivate the system. Refer
to page 103.
390de351
Check tire inflation pressures reg-
ularly – at least every two weeks
and before beginning a longer trip.
Incorrect tire pressure can lead to tire
damage and accidents.
Check the inflation pressure of the
spare tire also. Inflate the spare tire to
the highest inflation of any tire on your
vehicle.<
Comply with tire approval
specificationsThe inflation pressures in the table
apply to tires from BMW approved
manufacturers. Your BMW center is
familiar with these pressures. Higher
pressures may be specified for tires
from other manufacturers. You will find
a list of approved tires beginning on
page 156.
Your vehicle is equipped with tires that
meet US standards as well as European
standards. We recommend the exclu-
sive use of BMW approved tires.