1998 BMW 740I coolant

141n
RepairsIndexOverview Controls Car care Technology Data
Engine compartment – BMW 750iL1 Brake fluid reservoir147
2 Power steering fluid reservoir/
Level control system148
3 Auxiliary terminal for jump
starting179
4 Engine oil filler neck143
5 Coolant expansion tank146
6 Engine oil dipstick143
7 Reservoir for headlamp
and windshield washer system142
8 Fuse box176

146n
Coolant
Do not add coolant to the cooling
system when the engine is hot.
Escaping coolant can cause burns.
To avoid the possibility of damage later
on, never use anything other than fac-
tory-approved, nitrite and amino-free
extended-duty antifreeze with corrosion
protectant. Your authorized BMW cen-
ter is familiar with the official specifica-
tions.
Antifreeze and anti-corrosion agents
are hazardous to health. Store anti-
freeze and anti-corrosion agents in their
original containers where they are inac-
cessible to children.
Extended-duty antifreeze with corrosion
inhibitor contains ethylene glycol - a
flammable substance. For this reason,
do not spill antifreeze with corrosion in-
hibitor on hot engine components. It
could catch fire and cause serious
burns.<
Correct coolant level when the engine
is cold (approx. 687/206):
Unscrew the cap from the expansion
tank.
The coolant level is correct when the
end of the red float is aligned with the
upper edge of the filler opening (refer to
the arrow in the illustration or the sche-
matic diagram next to the cap).
The coolant is a mixture of water and
extended-duty antifreeze with corrosion
inhibitor. Always maintain the pre-
scribed all-season 50:50 mixture ratio
for year-round protection against inter-
nal corrosion. No other additives are re-
quired.
Replace the coolant every four years.380de081
To add coolantWait until the engine cools before re-
moving the cap from the expansion
tank. The needle of the coolant temper-
ature gauge in the instrument cluster
must be located in the blue zone; other-
wise, there is a danger of scalding.
1 Start by turning the cap counter-
clockwise. Pause to allow any accu-
mulated pressure to escape, then re-
move the cap
2 If the coolant is low, slowly add cool-
ant until the correct level is reached –
do not overfill.
Comply with the applicable envi-
ronmental laws regulating the dis-
posal of extended-duty antifreeze with
corrosion inhibitor.<

198n
Electrical system Drive beltsBatteryBMW 740i/L: 12 V, 110 Ah
BMW 750iL: 12 V, 55 Ah
12 V, 110 AhSpark plugsNGK BKR 6 EQUP or
Bosch FGR 7 DQP
This spark ignition system meets all re-
quirements of the Canadian Interfer-
ence-Causing Equipment Regulations.BMW 740i/L
Water pump – AC generator -
power steering
V-belt 7 K x 1635
A/C compressor
V-belt 5 K x 1004
BMW 750iL
AC generator – power steering
V-belt 7 K x 1045
Coolant pump – air conditioner
compressor
V-belt 6 K x 1190
You can obtain Original BMW
Parts and Accessories, as well as
professional advice from your autho-
rized BMW center.<

RepairsIndexOverview Controls Car care Technology Data
Everything from A to Z
203n
Convenience operating mode
for windows and sliding/tilt
roof32
Convenience operating mode
for windows and sliding/tilt
sunroof33
Convenience starting59
Coolant146
Coolant temperature
gauge74
Coolant, antifreeze128
Cooling system, capacity 197
Cruise control70
Cruising range85
DDaytime-driving light
switch96
DBC (Dynamic Brake
Control)127
Defrosting, windows102
Digital clock79
Digital sound processor187
Dimensions195
Dimming feature, interior
rearview mirror50
Dipstick, engine oil143
Disc brakes126
Disconnect the battery175
Displacement194
Displays18
Distance86Distance warning90
Door key30
Door warning lamps, bulb
replacement167
Doors, emergency release 32
Doors, radio remote
control33
Drink holders113
Drive belts198
Driving notes123
DSC (Dynamic Stability
Control)92
Dynamic Brake Control
(DBC)127
Dynamic Stability Control
(DSC)92
EEDC (Electronic Damper
Control)93
Electric power windows42
Electric rear seat
adjustment48
Electric steering wheel
adjustment49
Electrical accessories,
failure176
Electrical system198
Electronic Damper Control
(EDC)93
Electronic immobilizer31Emergency deactivation of
the alarm system41
Emergency release
doors32
fuel filler door178
luggage compartment
lid37
sliding/tilt sunroof178
Energy Control73
Engine coolant146
Engine data194
Engine oil consumption143
Engine oil pressure20
Engine oil specifications144
Estimated time of arrival87
Exterior door handles,
lighted33
Exterior finish, care151, 152
FFailure messages75
First-aid kit24
Fittings for tow-starting
and towing180
Flashlight111
Flat tires132
Fluid, power steering148
Fog lamps97
bulb replacement165
switch97
Footwell lamps98Footwell lamps, bulb
replacement167
For wheelslip control, refer
to ASC+T/DSC92
Front armrest112
Front seat adjustment46
Fuel25
Fuel consumption
indicator73
Fuel filler door25
Fuel filler door,
manual release after
electrical fault178
Fuel gauge73
Fuel specifications25
Fuel tank capacity197
Fuel, average fuel
consumption85
Fuses176
GGasoline25
Glove compartment110
Glove compartment lamp,
bulb replacement167
Gross vehicle weight196HHand brake, refer to Parking
brake61
Handsfree system113
Hazard warning triangle24

Everything from A to ZStarting assistance179
Starting the engine59
Steering130
Steering lock59
Steering wheel adjustment,
automatic49
Steering wheel lock59
Steering wheel memory51
Steering wheel, heated106
Steptronic65
Stopping the vehicle60
Storage facilities113
Sun visors51
Symbols4,173TTachometer72
Tail lamps166
Tail lamps,
bulb replacement166
Tank capacity197
Technical modifications
6,157
Telephone
Refer to Car telephone 131
Telephone hookup113
Temperature adjustment 103
Temperature display, engine
coolant74
Temperature display,
outside temperature72
Third brake lamp166Tilt alarm41
Tire code134
Tire damage132
Tire failure170
Tire inflation pressure 26, 132
Tire Pressure Control
(RDC)94
Tire replacement133
Tire tread132
Tires, specifications136
Tools162
Topping up the windshield/
washer fluid reservoir142
Torque194
Towing eyes180
Towing the vehicle180
Tow-starting180
Track circle195
Transmission62,65
Tread depth, tires132
Trip odometer72
Trunk lid, refer to luggage
compartment lid37
Turn signal22,68
Turn signals, bulb
replacement165,166
Turning circle195
UUniversal Remote
Control108
Used batteries175
VVanity mirrors51
Vehicle battery173
Vehicle identification148
Vehicle Identification
Number148
Vehicle storage156
Ventilation outlet,
ventilation100
Ventilation, draft-free104
Voice input23WWarning lamp "Please fasten
safety belts"21
Warning lamps20
Warnings75
Washer system68
Washing your car150
Water on the roads
Flooding123
Waxing, finish152
Weights196
Wheel lug wrench171
Wheel rims134
Wheelbase195
Wheels and tires134,136
Width195
Windows, convenience
operating mode32
Windows, radio remote
control33
Windows,demisting102Windshield washer
Reservoir capacity197
Windshield washer nozzle
adjustment142
Windshield wiper blades,
replacing162
Windshield wipers68
Windshield, defrosting69
Winter operation128
Winter tires135
Wiper blades, replacing162
Wipers68
Work in the engine
compartment137
XXenon lamps96,164,190

Repairs
Index
Overview
Controls
Car care
Technology
Data
Owner service procedures from A to Z207 n
A
Adding brake fluid 147
Adding engine coolant 146
Adding engine oil 143
Adding fluid, power steering 148
Air pressure 26
B
Backup lamps, bulb
replacement 166
Battery change, radio remote control 168
Battery, checking charge condition 174
Battery, discharged 179
Brake lamps, bulb replacement 166
Brakes, brake faults 128
Bulb replacement 163
C
Changing a wheel 170
Charging the battery 174
Check Control 75
Checking the engine oil 143
Checking tire pressure 26
D
Defrosting, windows102
Difficult steering 130
Doors, manual operation 32
E
Electrical accessories,
failure 176
Electrical fault fuel filler door 178
Sliding/Tilt sunroof 178
Emergency release Doors 32
Fuel filler door 178
Luggage compartment
lid 37
Sliding/Tilt sunroof 178
Engine oil specifications 144
F
Failure messages75
Filling the windshield washer fluid reservoir 142
First-aid kit 24
Fittings, tow-starting and towing 180
Fog lamp,
replace the bulb 165
Footwell lamps, bulb replacement 167 Fuel filler door,
manual release after
electrical fault 178
Fuses, replacing 176
G
Glove compartment lamp,
bulb replacement 167
H
Hazard warning flashers 24
Hazard warning triangle 24
High beam headlamps, bulb replacement 164,165
Hood release 137
I
Indicator lamps 20
Interior lamps, bulb replacement 167
Interior motion sensor, deactivation 41
J
Jump starting 179
L
License plate lamps, bulb
replacement 166
Low beam headlamps, bulb
replacement 164 Luggage compartment
lamps, bulb
replacement 167
Luggage compartment lid, emergency release 37
M
Maintenance74,149
Malfunction displays 75
N
New transmitter, radio re-
mote control 168
O
Oil level check 143
Oil specifications 144
Onboard tool kit 162
P
Power steering,
adding fluid 148
Pressure, tires 26
R
Radio remote control,
battery change 168
Radio remote control, new transmitter 168
Rear lamp assembly 166
Removing condensation, windows 102