
67n
IndexDataTechnologyRepairsCar careControlsOverview
Tire Pressure Warning (RDW)The conceptThe Tire Pressure Warning (RDW) moni-
tors the tire pressure in all four wheels
while driving. The system is designed to
detect whenever the inflation pressure
in a tire drops significantly, monitoring
the speed of the tires relative to each
other. A flat tire can be detected and
reported because its speed suddenly
deviates drastically from that of the
other tires.
Initializing the systemInitializing is necessary to familiarize the
system with the correct inflation pres-
sure.
Repeat this process after any changes
in tire inflation pressure, tire rotation or
replacement. Do not carry out further
system initialization after correcting the
inflation pressure and letting the system
"learn" what condition is required.
1 Check the tire inflation pressure in all
the tires, comparing them with the
inflation pressure table (page 27),
and adjusting their pressure if neces-
sary.
2 Turn the ignition key to position 2.36mus735
3 Continue to press the button until the
indicator lamp in the instrument
cluster lights up. After a short time,
the indicator lamp will go out auto-
matically.
4 Switch the ignition off.
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93n
IndexDataTechnologyRepairsCar careControlsOverview
Winter operationThe onset of winter is often accompa-
nied by rapid changes in weather.
Adaptations in driving style should be
accompanied by preparations on the
vehicle itself to ensure that your vehicle
operation through the winter remains
safe and trouble-free.CoolantEnsure that the coolant contains the
year-round 50 : 50 ratio of water and
antifreeze with corrosion inhibitor.
This mixture provides protection
against freezing down to approx.
– 34 7 (– 37 6). Replace the coolant
every three years.LocksBMW door lock deicer can be used to
free the doors if they are frozen. This
deicer also contains lubricant.
After using deicer, treatment with BMW
lock cylinder grease is recommended.
Rubber seals and components In order to prevent freezing, apply BMW
rubber treatment or silicone spray to
weather-stripping on the doors, hood,
luggage compartment and to convert-
ible top seals.
A full range of car-care products is
available from your BMW center.< Snow chainsMount the BMW snow chains
* only in
pairs on the rear wheels only. Comply
with the manufacturer's safety precau-
tions. Do not exceed a speed limit of
30 mph (50 km/h) when driving with
chains. As an exception in this situa-
tion, we recommend that you deacti-
vate the DSC and RDW when snow
chains are mounted. Refer to page 65
or page 67.
Starting offWhen starting from a full stop or
"rocking" free in deep snow, we recom-
mend that you deactivate the DSC
system. Refer to page 65.Driving on low-traction road
surfacesUse smooth, gentle pressure to control
the accelerator pedal. Avoid excessive
engine speeds and shift to the next
higher gear at an early point. Shift down
into the next lowest gear when
approaching uphill or downhill grades.
Maintain an adequate distance between
yourself and the vehicle ahead.Braking Winter road conditions substantially
reduce the traction available between
the tires and the road surface.
Remember that – in every situation –
braking distances will be significantly
longer as a result of this.
ABS is intended to prevent the wheels
from locking during brake applications,
thus helping to maintain vehicle stability
and steering response.
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94n
Winter operation Power steeringIf it should occur that the ABS does not
respond in a critical braking situation
and the wheels lock: reduce the pres-
sure on the brake pedal until the wheels
just start to roll again while still main-
taining enough force to continue
braking. Following that, increase pedal
pressure again. Reduce the pressure as
the wheels lock, then reapply pressure.
Repeat this process.
This type of staggered braking will
lower the braking distance, and the
vehicle still remains responsive to
steering.
You can still attempt to steer around
hazards once you have reduced the
pressure on the brake pedal.
Do not shift down on slick road
surfaces. Doing so could cause
the rear wheels to lose traction and
skid, which could result in the loss of
vehicle control.<
Depress the clutch pedal during
hard braking on road surfaces
which provide only poor or uneven trac-
tion.<
Skid controlDepress the clutch pedal and release
the accelerator pedal. Countersteer
carefully and attempt to regain control
of the vehicle.ParkingEngage 1st or reverse gear. Depending
on the steepness of the incline, you can
apply the parking brake as well. In order
to prevent the parking brake pads from
locking due to frost or corrosion, dry
them by gently applying the parking
brake as the vehicle is coming to a stop.
Make sure that following traffic is not
endangered.
The brake lamps do not light
up when the parking brake is
applied.<
Changes in steering response
(high steering effort, for example):
Consult a BMW center to have the
system checked.
If the power steering fails,
increased effort will be required
to steer the vehicle.<
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102n
Special features of winter tires Snow chains
*
Choosing the right tireBMW recommends winter tires (M+S
radial tires) for operation under
inclement winter driving conditions.
While so-called all season tires (M+S
designation) provide better winter trac-
tion than summer tires with the load
ratings H, V, W, Y and ZR, they gener-
ally do not achieve the performance of
winter tires.
In the interests of sure tracking and safe
steering response, mount winter tires
which are made by the same manufac-
turer and which have the same tread
pattern at all four wheels.Comply with recommended speed
Never exceed the maximum
speed for which the winter tires
are rated.
Unprofessional attempts by laymen to
service tires can lead to damage and
accidents.
Have this work performed by skilled
professionals only. Any BMW center
has the required technical knowledge
and the proper equipment and will be
happy to assist you.<
Tire condition, tire pressureOnce the tire wears to below 0.16 in
(4 mm), winter tires display a percep-
tible decrease in their ability to cope
with winter driving conditions, and
should be replaced in the interest of
safety.
Comply with the specified tire inflation
pressures – and be sure to have the
wheel and tire assemblies balanced
every time you change the tires.The use of narrow-link BMW snow
chains on winter tires is approved only
in pairs and only on the rear wheels.
Comply with all manufacturer's safety
precautions when mounting the chains.
Deactivate the Tire Pressure
Warning (RDW) when using snow
chains. The snow chains can lead to
malfunction warnings and undetected
losses in pressure.
For further information, refer to
page 67.<
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123n
IndexDataTechnologyRepairsCar careControlsOverview
Storing your vehicle
If you intend to store the vehicle
for longer than three months, have
the maintenance operations described
on this page performed.<
Preparation for storageHave the following operations
performed by your BMW center:
1 Clean and apply a rustproofing agent
or other treatment to the engine,
engine compartment, undercarriage,
axles and major components in
accordance with approved repair
procedures. Wash the vehicle, clean
the interior and treat painted and
chromed parts. Clean the rubber
seals around the hood, luggage
compartment and doors.
2 Change the engine oil and oil filter
with the engine at operating tempera-
ture. As an additional corrosion
protection measure, a corrosion
inhibitor can be added to the engine
in accordance with the manufac-
turer's instructions.
3 Check the coolant level and concen-
tration and top up if necessary.
4 Check the fluid level of the wind-
shield washer fluid reservoir; top up if
necessary.
5 Fill the fuel tank completely to
prevent the formation of condensa-
tion.
6 Increase the tire inflation pressure to
51 psi (350 kPa).Before parking the vehicle for
storage1 Dry the parking brake and footbrake
by brake applications to prevent the
brake discs and drums from
corroding.
2 Park the vehicle in a covered, dry,
and well-ventilated room. Place the
transmission in 1st gear. Chock the
wheels to prevent the vehicle from
rolling if necessary. Do not apply the
parking brake.
3 Remove the battery, charge it
completely and store it in a cool (but
frost-free) room.
M roadster:
4 Remove the hardtop
* and store it
separately. Refer to page 97.
5 Close the convertible top.
During storageRecharge the battery every six months.
If it is not recharged, it will not be
serviceable. Every time the battery is
discharged, especially over extended
periods, its service life is reduced.Removing the vehicle from
storageRecharge the battery if the "Magic Eye"
turns black. Refer to page 141.
Then have Inspection I performed by
your BMW center, including a brake
fluid replacement if necessary. Refer to
the Service Manual.
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Everything from A to ZGGasoline26
Glass sunroof36
Glove compartment78
Grilles72
Gross vehicle weight158HHardtop96
Hazard warning
flashers24t
Hazard warning system24
Hazard warning
triangle24t
Head restraints47
Headlamp cleaning
system108
Headlamp cover,
care116t, 129t
Headlamp flasher58
Headlamp washers60
Headlamps, high
beam23, 58
bulb replacement129t
Headlamps, low beam69
bulb replacement129t
Heated seats77
Heating and ventilation72
Height157
Height adjustment, seats46
Help with jump starting144High beams23, 58
bulb replacement129t
Hood release104t
Horn17
IIdentification number of the
vehicle113
Identification, tires101
Ignition key30
Ignition lock55
Ignition switch55
Immobilizer
electronic31
vehicle31
Imprint4
Indicator lamps20
Inflation pressures27t, 98
INSPECTION64
Instrument panel16
Instrument panel lighting69
Instruments18
Interior lamps70
bulb replacement133t
Interior rearview mirror,
automatic dimming
feature48
Intermittent wipe switch59JJump-starting144t
KKey, battery change134t
Keys30LLamp switch69
Lamps and bulbs129
Lashing eyes82
Leather care121
Length157
License plate lamps, bulb
replacement133t
Light-alloy wheel103
LIGHTS ON warning69
Limited slip differential153
Load-securing devices82
Lock buttons33
Locks, care93
Low beam headlamps69
bulb replacement129t
Low-fuel indicator lamp62
Luggage compartment34
capacity158
locking separately34
manual operation34
Luggage compartment lamp,
bulb replacement133t
Luggage compartment
lid34
manual operation34t
MM + S tires102
M Mobility system
components137
using137
M+S radial tires102
Magic Eye, refer to Battery
charge condition141
Maintenance64, 114
Malfunction, cellular
telephone95
Manual operation
convertible
top37t, 143t
doors32t
luggage
compartment34t
Manual transmission58
Master key, battery
change134t
Mirrors47
adjusting47
defrosting47
Mobile phone95
refer also to the separate
Owner's Manual
Modifications,
technical6, 124
Multifunction switch58
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