1998 BMW 740I heating

11n

Controls and features
Operation, care and maintenance

Lamps:

Parking lamps/Low beams96
Instrument panel lighting96
High beams/Parking lamps97
Fog lamps97
Interior lamps97
Reading lamps98

Controlling the climate
for pleasant driving:

Automatic climate control100
Rear passenger-area air
conditioning105
Seat heating106
Steering wheel heating106
Roller sun blind107
Independent ventilation
system107

Cabin convenience:

Integrated Universal
Remote Control108
Glove compartment110
Center armrests111
Additional storage areas113
Cup holder113
Cellular phone113
Ashtray114
Cigarette lighter115
Rear footrests115

Loading and transporting cargo:

Ski bag116
Cargo loading118
Roof-mounted luggage rack118

Special operating instructions:

Break-in procedure122
Driving notes123
Catalytic converter124
Antilock Brake System
(ABS)125
Disc brakes126
Brake system128
Winter operation128
Power steering130
Level control system130
Cellular phone131
Radio reception131

Wheels and tires:

Tire inflation pressure132
Tire condition132
Tire replacement133
Tire rotation133
Wheel and tire
combinations134
Winter tires135
Snow chains135
Approved wheel and tire
specifications136

Under the hood:

Hood137
Engine compartment138
Washer fluids142
Washer nozzles142
Engine oil143
Coolant146
Brake fluid147
Oil for power steering/
Level control system148
Vehicle Identification
Number148

Care and maintenance:

The BMW Maintenance
System149
Caring for your car150
Airbags156
Vehicle storage156

Laws and regulations:

Technical modifications to the
vehicle157
OBD connector158

20n

Indicator and warning lamps

Technology that monitors itself

Many of the systems of your BMW mon-
itor themselves automatically, both dur-
ing engine starts and while you are driv-
ing. 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 ribbed V-belt or in the
charging circuit of the alternator. Please
contact the nearest BMW center.
If the V-belt is defective, do not
continue driving. The engine could
be damaged due to overheating. If the
ribbed V-belt is defective, increased
steering effort is also required.

<


Engine oil pressure

l

Comes on while the engine is
running and the "Stop! ENGINE
OILPRESS" message appears in the
Check Control:
Stop vehicle and switch off engine im-
mediately. Check level of oil in engine,
top up as required. If oil level is correct:
Please contact the nearest BMW cen-
ter.
Do not continue driving. The en-
gine could be damaged because
of inadequate lubrication.

<



Brake hydraulic system

l

The brake fluid level is too low.
Before driving further, be sure to
read the notes on pages 128 and 147.
Also comes on with the message
"Check brake pads" in the Check Con-
trol.



Brake hydraulic system warning
lamp for Canadian models.

23n

RepairsIndexOverview Controls Car care Technology Data

Multifunction steering wheel (MFL)

The controls integrated in the multi-
function steering wheel are provided so
that you can operate a number of ac-
cessories quickly and without being
distracted from traffic conditions. You
may operate:

>

Some of the functions of the radio,
the CD and cassette modes

>

The recirculated-air mode of the air
conditioner or

>The steering wheel heating
>The cruise control and
>Selected cellular phone functions.
In order to operate a system via
the MFL, the corresponding sys-
tem controls must be switched on.<
The illustration shows the maximum
possible number of controls, corre-
sponding to a full range of optional
equipment. Refer to the individual ac-
cessory manuals for more detailed de-
scriptions.
1 Cellular phone: Receive an incoming
call, initiate dialing and end a call.
Pressing and holding the key for a
longer period activates or deactivates
the voice input
*
2 Radio/Telephone: Selection
3 Radio/Telephone: Search backward
or station keys or scroll in the phone
book.
Fast forward and reverse for CD and
cassette modes
4 Radio/Telephone: Volume
5 Radio/Telephone: Search forward or
station keys or scroll in the phone
book.
Fast forward and reverse for CD and
cassette modes390de110
6 Horn: The entire surface
7 Cruise control: Activate stored
setting (resume)
8 Cruise control: Store and acceler-
ate (+); decelerate and store (–)
9 Cruise control: Activate/Interrupt/
Deactivate
10 Recirculated-air mode and AUC or
steering wheel heating: Switch on
and off

Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
29n
RepairsIndexOverview Controls Car care Technology Data
Parking brake61
Automatic transmission62
Automatic transmission with
Steptronic65
Indicator/Headlamp flasher68
Washer/Wiper system/Rain
sensor68
Rear window defroster70
Cruise control70
Everything under control:
Odometer, outside temperature
display72
Tachometer72
Energy control73
Fuel gauge73
Temperature gauge74
Service Interval Display74
Check Control75
Multi-Information Display
(MID)78
Digital clock79
Onboard computer84
Technology for safety and
convenience:
Park Distance Control (PDC)90
Automatic Stability Control plus
Traction (ASC+T)/Dynamic Sta-
bility Control (DSC)92
Electronic Damper Control
(EDC)93
Tire Pressure Control (RDC)94Lamps:
Parking lamps/Low beams96
Instrument panel rheostat96
High beams/Parking lamps97
Fog lamps97
Interior lamps97
Reading lamps98
Controlling the climate
for pleasant driving:
Automatic climate control100
Rear passenger-area air
conditioning105
Seat heating106
Steering wheel heating106
Rear window blind107
Independent ventilation
system107
Cabin convenience:
Integrated Universal
Remote control108
Glove compartment110
Center armrests111
Additional storage areas113
Cup holder113
Cellular phone113
Ashtray114
Cigarette lighter115
Rear footrests115
Loading and transporting cargo:
Ski bag116
Cargo loading118
Roof-mounted luggage rack118

103n
RepairsIndexOverview Controls Car care Technology Data
Automatic climate controlAutomatic recirculated-air control
(AUC)
You can respond to unpleasant
external odors by temporarily
stopping the flow of outside air. The
system then recirculates the air cur-
rently within the vehicle. Press the but-
ton repeatedly to run through the fol-
lowing control sequence:
>Indicator lamps off: Fresh air flows
into the vehicle
>Left-hand indicator lamp on – AUC
mode: The system detects pollutants
in the outside air and responds by
deactivating the outside air flow when
required. The system then recircu-
lates the air currently within the vehi-
cle
>Right-hand indicator lamp on: The
flow of external air into the vehicle is
permanently blocked. The system
then recirculates the air currently
within the vehicle.
If you have a multi-function steering
wheel with the AUC button (refer to
page 23), you can also switch between
"OFF" and AUC from there.
If the windows fog over in the re-
circulated-air mode, switch this
mode off and increase the air supply as
required.<
Rear window defroster
When the rear window defroster
is activated, the indicator lamp
comes on. The rear window defroster
switches off automatically.
Temperature
You can make individual
temperature settings on the
driver's side and the front passenger
side. Your settings will be shown in the
display 7. The displayed temperatures
are reference values for the interior
temperature. We recommend 707
(226) as a comfortable setting,
whether the air conditioner is operating
or not. When you start the vehicle, the
system ensures that the selected tem-
perature is achieved as quickly as pos-
sible. It then maintains this tempera-
ture, regardless of the season.
You can set uncontrolled heater
output at up to 907 (326). Full
cooling output is available from the air
conditioner down to 607 (166).<

Air supply
In the "AUTO" program, the
air flow is controlled auto-
matically. AUTO will appear in the dis-
play, refer to the overview on page 100.
Use "+" and "–" to vary the air flow.
When your setting is displayed by bars,
the automatic air flow is switched off.
Automatic air distribution maintains its
setting. You can reactivate the auto-
matic air flow by pressing the "AUTO"
button.
When you press "– " during operation at
minimum blower speed all displays are
canceled: The fan, heating and air con-
ditioner are switched off. The outside
air supply is closed. By pressing any
button of the automatic climate control
(except the "REST" button 9), you can
switch the system back on.

104n
Automatic climate controlResidual heat mode
The heat which is stored in
the engine is utilized for
heating of the interior when the engine
has been switched off (while waiting at
a railroad crossing, for instance).
In ignition key position 1, you can alter
the settings of the automatic climate
control. In ignition key position 0, the
system automatically directs heated air
to the windshield, side windows and
footwells.
This function may be activated
when the outside temperature is
below approx. 597 (156), the engine
is at operating temperature, and the
battery is adequately charged.<
Draft-free ventilationYou can adjust the vent outlets for the
upper body area for individual selection
of air-flow rates and directions:
You can open and close the ventilation
outlets with infinitely-variable adjust-
ments and direct them up or down with
the rotary dials 1. In the closed position,
air exits only at the upper center of the
instrument panel. You can use rotary di-
als 2 to adjust the flow direction from
side to side.
Set the outlets so that the air flows past
you and is not directed straight at you.380de051
Rotary dial 3 allows you to temper the
air flow from these outlets by adding
heat or cooling as desired:
>Turn toward blue – colder
>Turn toward red – warmer
To adjust the rear compartment vents:
Use the rotary dial on the left to close or
open the vent for any desired air flow.
You can adjust the temperature with the
right rotary dial in the same manner as
the adjustment for the front ventilation
outlets.
Use the levers at the centers of the vent
outlets to control the direction of the
emerging air.

106n
Seat heating
*
Steering wheel heating
*
The seat cushion and backrest can be
heated with ignition key in position 2.
You can call up different heating modes
by repeatedly pressing the keys.
The highest heating mode is on when
the three indicator lamps are lit; one
lamp is lit for lowest heating. Tempera-
ture regulation in each mode is with a
thermostat.
You can also switch the higher heating
modes off directly:
Press the key and hold it slightly longer.380de618
Rear seat heating
*
The switches are located at the rear of
the center console, beneath the air
vents.
To activate and cancel the steering
wheel heater, press button (arrow) with
the ignition key in position 2.
The lamp within the button lights up
when the steering wheel heater is in op-
eration.
If you have a multi-function steering
wheel without steering wheel heating,
the button for the recirculated-air mode
is in this location (refer to page 23).
380de200

124n
Catalytic converterThe catalytic converter reduces harmful
exhaust emissions, and is designed for
use with unleaded fuel only.
Even minute quantities of lead would be
enough to permanently damage both
the catalytic converter and the system's
oxygen sensor.
To ensure efficient, trouble-free engine
operation and avoid potential damage:
>Be sure to comply with the scheduled
maintenance requirements
>Fill the fuel tank well before it is
empty
>If you have problems starting the en-
gine, use jumper cables (you cannot
tow-start the vehicle with an auto-
matic transmission)>Avoid other situations in which the
fuel is not burned, or burns incom-
pletely, such as engaging the starter
frequently or for extended periods, or
repeated start attempts in which the
engine does not start (stopping and
restarting an engine which is running
properly does not present a problem).
Never let the engine run with any of
the spark plug cables disconnected.Be sure to comply with the in-
structions above to prevent un-
burned fuel from reaching the catalytic
converter. Otherwise there is danger of
overheating and damage to the cata-
lytic converter.
Extreme temperatures occur at the
catalytic converter on this and every
catalyst-equipped vehicle. Heat shields
are installed adjacent to some sections
of the exhaust system. Never remove
these shields; do not apply undercoat-
ing to their surfaces. When driving,
standing at idle, and parking the vehi-
cle, take care to avoid contact between
the exhaust system and flammable ma-
terials (grass, hay, leaves, etc.). Such
contact could lead to a fire, resulting in
personal injury and property damage.<