Page 12 of 171
Contents
Owner service procedures
Advanced technology
Technical data
Replacement procedures:
Onboard tool kit128
Windshield wiper blades128
Lamps and bulbs129
Master key with battery-
powered lamp134
Changing a wheel135
Repairing a flat tire135
Battery140
Fuses142
In case of electrical
malfunction:
Power convertible top143
Fuel filler door143
Assistance, giving and
receiving:
Jump-starting144
Towing the vehicle145Airbags150
Radio reception150
Dynamic Stability Control
(DSC)151
Safety belt tensioner151
Interior rearview mirror with
automatic dimming
feature152
Limited slip differential153Engine specifications156
Dimensions157
Weights158
Capacities159
Electrical system160
Drive belts160
ProCarManuals.com
Page 49 of 171
49n
IndexDataTechnologyRepairsCar careControlsOverview
Drive with your safety belt onFasten your safety belt before begin-
ning every trip.
To fasten: make sure you hear the
catch engage in the belt buckle.
To release: press the red button in the
buckle. Hold the belt and guide it back
to its reel.
The safety belt locks:
>In an abrupt stop or a collision.
>If it is pulled out very quickly.
>During sudden braking or accelera-
tion.
>When the vehicle is at an extreme
angle.367de018
M roadsterMake sure the safety belts are routed
through the belt guides on the seat
backrests.367de019
M roadster
Safety belt height adjustment –
M coupeYou can adjust the safety belts to fit
your own physical dimensions by using
the safety belt height adjustment mech-
anism.
Downward adjustment:
Press the button down (arrow 1).
Upward adjustment:
Grasp the deflection fitting on the sides
and slide it upward (arrows 2).367de636
M coupe
Safety belts
ProCarManuals.com
Page 116 of 171

116n
Caring for your vehicleWhen using an automatic car wash, be
sure that:
>The car wash system is suited for the
dimensions of your vehicle.
>No damage will occur on vehicles
with attached body accessories (such
as spoilers or antennas). Consult the
car wash operator if necessary.
>The wheels and tires of your vehicle
cannot be damaged by the convey-
ance devices of the car wash system.
>The vehicle is cleaned with minimum
brush pressure, and ample water is
available for washing and rinsing.
Parts of the vehicle which are inacces-
sible to the automatic washer – such as
door sills, door and hood edges, etc. –
should be cleaned by hand.
In the winter months, it is especially
important to ensure that the vehicle is
washed on a regular basis. Large quan-
tities of dirt and road salt are difficult to
remove, and they also cause damage to
the vehicle.If spray wands or high-pressure
washers are used, be sure to
maintain an adequate distance between
the spray source and the vehicle's
surface. Inadequate distance and
excessive pressure can damage or
weaken the finish, making it more
susceptible to subsequent attack. In
addition, moisture could penetrate to
vehicle components, leading to long-
term damage.<
When cleaning the headlamps,
please observe the following:
>Do not rub dry (this causes scratches)
and never use abrasives or strong
solvents to clean the covers.
>Remove dirt and contamination (such
as insects) by soaking with BMW Car
Shampoo and then rinsing with plenty
of water.
>Always use a deicer spray to remove
accumulated ice and snow – never
use a scraper.<
After washing the vehicle, apply
the brakes briefly to dry them.
Braking efficiency might otherwise be
reduced by the moisture and the brake
discs could also be corroded.<
ProCarManuals.com
Page 155 of 171
Overview
Controls and features
Operation, care
and maintenance
Owner service procedures
Technical data
Index Advanced technology
155n
IndexDataTechnologyRepairsCar careControlsOverview
Engine specifications156
Dimensions157
Weights158
Capacities159
Electrical system160
Drive belts160
Data
ProCarManuals.com
Page 157 of 171
157n
IndexDataTechnologyRepairsCar careControlsOverview
M roadster, M coupe
Length in (mm) 158.5 (4,025)
Width in (mm) 68.5 (1,740)
Height (unloaded) in (mm) 49.8 (1,266)
Wheelbase in (mm) 96.8 (2,459)
Track, front in (mm) 56.0 (1,422)
Track, rear in (mm) 58.7 (1,492)
Min. turning circle dia. ft (m) 34.1 (10.4)
Dimensions
ProCarManuals.com
Page 165 of 171

Everything from A to Z
165n
IndexDataTechnologyRepairsCar careControlsOverview
Cigarette lighter80
Cleaning the headlamps60
Cleaning the rear
window60
Cleaning the windshield59
Cockpit16
Code, refer to the Radio
Owner's Manual
Coin box79
Cold start56
Compartments78
Connecting a car vacuum
cleaner80
Controls, cockpit16
Convertible top
care117
electrical defect143t
operation37, 41
weather protection41
Coolant93, 112
antifreeze protection93
Coolant temperature63
Copyright4
Cornering Brake Control
(CBC)90
Cover, convertible
top38, 43
Cruise control61
Cup holder, refer to
beverage holder79
Curb weight158
DDashboard16
Data link connector for
Onboard Diagnostics125
Date, refer to the Radio
Owner's Manual
Daytime running lamps69
Deep water87
Defrost the windows and
remove condensation76
Defrosting
rear window60
mirrors47
Difficult steering94t
Dimensions157
Dipstick, engine oil109
Dirty spots on
paintwork118
Disc brakes91
Displacement156
Display lighting69
Displays18
Disposal
batteries141t
brake fluid113t
engine oil111t
Door key30
Doors
manual operation32
unlocking and locking32
DOT Quality Grades99
Drive belts160Driving notes87
Driving through water87
DSC (Dynamic Stability
Control)65, 151
Dynamic Stability Control
(DSC)65, 151
EElectric convertible top
operation41
Electric power windows35
Electrical defect
convertible top143t
fuel filler door143t
Electrical system160
Electronic immobilizer31
Emergency operation
convertible top143t
doors32t
fuel filler door143t
luggage compartment
lid34t
Engine compartment107
Engine coolant112
adding112t
Engine oil109
adding109t
dipstick109
disposal111t
grades110
level22, 109t
pressure20
viscosity110Engine output156
Engine specifications156
Exterior finish118
FFailure of an electrical
accessory142t
Fan74
Filler cap cover25
Filling the washer
reservoir108t
First-aid kit25
Fittings, tow-starting and
towing145t
Flasher, headlamp58
Flat tire98
Z3 roadster,
Z3 coupe135t
Folding top37
Footbrake91
Front airbags51, 122
Frost protection, radiator93
Fuel26
Fuel filler door
electrical defect143t
emergency
operation143t
Fuel gauge62
Fuel tank capacity159
Fuses142
ProCarManuals.com