compression ratio BMW Z4 2.5I 2003 Owners Manual

Technical data
94
Technical data
Engine data
Weights

Z4 roadster 2.5iZ4 roadster 3.0i
Displacement
Number of cylinderscu in/cmµ152.1/2,494
6181.7/2,979
6
Maximum power output
at engine speedhp/kW
rpm184/141
6,000225/170
5,900
Maximum torque
at engine speedlb ft/Nm
rpm181/245
3,500222/300
3,500
Compression ratio
ε10.5 10.2
Stroke
Borein/mm
in/mm2.95/75
3.31/843.53/89.6
3.31/84
Fuel-injection system Digital electronic engine-management system DME
Z4 roadster 2.5iZ4 roadster 3.0i
Curb weight
with manual transmission
with automatic transmissionlbs/kg
lbs/kg2,932/1,330
2,998/1,3602,998/1,360
3,042/1,380
Approved gross vehicle weight
with manual transmission
with automatic transmissionlbs/kg
lbs/kg3,483/1,580
3,549/1,6103,549/1,610
3,593/1,630
Approved front axle load lbs/kg 1,720/780 1,742/790
Approved rear axle load lbs/kg 1,841/835 1,863/845
Luggage compartment capacity
with the convertible top compartment raisedcu ft/l
cu ft/l8.5/240
9.2/2608.5/240
9.3/260
Never exceed either the approved axle loads or the approved gross vehicle weight.

Everything from A - Z
98 Brake system 65
– brake fluid level 81
– brake pads 66
– break-in procedures 64
– disc brakes 65
Brakes
– driving notes 65
Break-in procedures 64
– brake system 64
– clutch 64
– differential 64
– engine 64
– tires 64
Bulb
– defective 45
– replacement 84
C
California Proposition 65
warning 83
Can holder 61
Capacities 94, 96
– luggage
compartment 22, 94
Car battery 87
Car radio, refer to the
Owner's Manual for Radio
Car wash, refer to the Car-
ing for your vehicle bro-
chure
Cargo loading 66
Cassette player operation,
refer to the Owner's Man-
ual for Radio
Catalytic converter, refer to
High temperatures 65
CD player operation, refer
to the Owner's Manual for
Radio
Cellular phone
preparation 61
Cellular phone, refer to the
separate Owner's Manual
Center high-mount brake
lamp 87
Central locking system 18
– button 20
– interior 20
Charge indicator
lamp 14, 88Check gas cap 70
– indicator lamp 14
Child seat 34
Child-restraint mounting
system (LATCH) 36
Child-restraint systems 34
Cigarette lighter 61
Cleaning the headlamps 43
Cleaning the windshield 43
Clock
– 12/24-hour mode 49
– adjusting, refer also to the
radio or onboard com-
puter Owner's Manual
Clothes hooks 27
Cluster 13
Clutch
– break-in procedure 64
Cockpit 12
Code, refer to the Owner's
Manual for Radio
Combination switch, refer
to Turn signal indicators/
Headlamp flasher 42
Compartments 60
Compression ratio 94
Computer 49
– average fuel
consumption 50
– average speed 50
– clock, 12/24-hour
mode 49
– cruising range 50
– outside temperature 49
Condensation
– removing from
windows 56, 58
Configuring adjustments,
refer to Vehicle Memory,
Key Memory 37
Consumption 50
Convenience operation
– convertible top 20
– windows 20
Convertible top 23
– convenience operation 20
– electrical fault 25
– emergency operation 25
– malfunction 25
– manual operation 23
– mechanical 23Convertible top compart-
ment panel 22
Coolant 80, 96
– indicator lamp 14
Coolant thermometer 47
Cooling system 96
Cooling, maximum 58
Copyright 4, 6
Cruise control 44
Cruising range 50
Cup holder, refer to Bever-
age holder 61
Curb weight 94
Cylinders 94
D
Data 94
– engine 94
– filling capacities 96
– weights 94
Daytime driving lamps 45
DBC Dynamic Brake
Control 52
Defects 8
Deflector for wind 26
Defrost setting 56, 58
Defroster, rear window
– air conditioning 56
– automatic climate
control 59
Defrosting
– windows 56, 58
Differential
– break-in procedures 64
Digital clock
Dimensions 95
Dimming mirror 33
Dipstick, engine oil 79
Disc brakes 65
Displacement 94
Displays, refer to Instru-
ment cluster 13
Door lock 20
Door lock buttons 21
Doors
– emergency operation 20
– locking 19
– unlocking 19
DOT quality grades 73
Drivelogic 42