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IndexDataTechnologyRepairsCar careControlsOverview
Tire Pressure Warning (RDW)The conceptThe RDW monitors the tire pressure in
all four wheels while driving. The sys-
tem provides an alert whenever the in-
flation pressure drops significantly in
one of the tires.
For RDW to "learn" the correct tire infla-
tion pressure, check the inflation pres-
sure in all tires, comparing them with
the values in the inflation pressure table
(refer to page 25), and make correc-
tions as necessary. Then activate the
system.
This indicator lamp in the instru-
ment cluster will flash to inform
you if the inflation pressure in
one of the tires has dropped signifi-
cantly.
To activate the system 1 Turn the ignition key to position 2
2 Press the switch long enough for the
indicator lamp in the instrument clus-
ter to light up red for a few seconds
3 The RDW undergoes an automatic
"learning" process while you are driv-
ing, and stores this data to aim for op-
timal conditions. This one-time "learn-
ing" process lasts at least 10 minutes,
after which the RDW is able to detect
and report any tire failure.
Repeat this process after any changes
in tire inflation pressure, tire rotation or
replacement.
Once the pressures have been adjusted
to the reference values used in the
"learning" process, do not activate the
system a further time.520de117
Tire failureThe red indicator lamp will flash in the
event of a tire failure.
A supplementary gong is also heard.
Carefully reduce speed to less than
50 mph (80 km/h), avoiding any hard
braking or steering maneuvers while
doing so.
For additional details, refer to page 135.
The RDW cannot alert you to
severe and sudden tire damage
caused by external factors.
Nor can it detect the gradual loss of
pressure at all four tires that normally
occurs over a period of time.<
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Winter tires Snow chains
*
Choosing the right tireFor winter road driving, BMW recom-
mends winter tires (M+S radial belt
tires). Although all-season M+S tires
provide better winter traction than stan-
dard summer tires with H, V, W and ZR
speed ratings, they generally fail to pro-
vide the same levels of performance as
standard snow tires in winter driving.
In the interests of safe tracking and
steering response, install radial tires
made by the same manufacturer and
with the same tread configuration on all
four wheels if you elect to mount winter
tires.
Mount only winter tires that have been
approved by BMW. Any BMW center
will be glad to provide you with informa-
tion on the best winter tires for your
particular driving conditions.
Use only winter tires with emer-
gency driving characteristics as
there is no spare tire available if you get
a flat.
For further information, refer to
page 135.<
Do not exceed specified
maximum speeds
Never exceed the maximum speed
for which 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. Your BMW center
will be glad to assist you with both their
expertise and the proper equipment for
your vehicle.<
Tire condition, tire pressureOnce the tread depth on winter tires is
less than 0.16 in (4 mm), they are no
longer suitable for winter road driving,
and in the interest of safety should be
replaced.
Comply with the specified tire inflation
pressures Ð and be sure to have the
wheel and tire assemblies balanced
every time you change the tires.StorageAlways store tires in a cool, dry place.
Store them away from light whenever
possible. Protect the tires against con-
tact with oil, grease and fuel.
The use of narrow-link BMW snow
chains is permissible in pairs only on
the rear wheels with winter tires with
tire size 245/45 R 18 96 H. Comply with
all manufacturer's safety precautions
when mounting the chains.
Do not activate the RDW system
while using snow chains.
Malfunction warnings and undetected
losses in pressure are possible when
driving with snow chains.
For further information, refer to
page 65.<
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Coolant Brake fluidAdding coolant Wait until the engine cools before
removing the cap from the expansion
tank. The needle of the coolant gauge
in the instrument cluster must fall within
the blue zone. If it is not, there is a
danger of scalding.
1 Turn the cap slightly counterclock-
wise in order to allow accumulated
pressure to escape. Then open
2 If the coolant is low, slowly add cool-
ant until the correct level is reached Ð
do not overfill.
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
required.
Replace the coolant every three years.If the brake warning lamp comes on
and the parking brake has been re-
leased:
Check the brake fluid level. Fill it to the
top mark ("MAX") if necessary.
For adding brake fluid or for determin-
ing and correcting the cause of brake
fluid loss, consult your BMW center.
Your BMW center is familiar with the
specifications for factory-approved
brake fluids (DOT 4).
Brake fluid loss can increase brake
pedal travel. For this type of situation,
refer to the notes on page 89.
520de093
Brake fluid is hygroscopic, that is,
it absorbs moisture from the air
over time.
In order to ensure the safety and reli-
ability of the brake system, have the
brake fluid changed every two years by
a BMW center. Refer also to the Service
and Warranty Information Booklet (US
models) or the Warranty and Service
Guide Booklet (Canadian models).
Brake fluid is toxic and eats away the
vehicle's paintwork. You should always
store it in its original container and in a
location that is inaccessible to children.
Do not spill the fluid and do not fill the
brake fluid reservoir beyond the "MAX"
mark. The brake fluid could ignite upon
contact with hot engine parts and
cause serious burns.<
Comply with the applicable envi-
ronmental laws regulating the dis-
posal of brake fluid.<
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The BMW Maintenance System has
been designed so that it will ensure reli-
able vehicle transportation and opera-
tion with the least amount of cost and
effort on your part as possible.
Please keep in mind that regular main-
tenance is not only necessary for the
safety of your vehicle, but also plays a
significant role in maintaining the resale
value of the vehicle.
520us006
Service Interval DisplayOptimal maintenance intervals are cal-
culated by using advanced technology;
these are then indicated in the Service
Interval Display. While conventional
systems rely on distance traveled alone
to determine when service is due, the
BMW Maintenance System has for
years considered the actual conditions
under which the vehicle operates, be-
cause miles can be traveled in many
different ways:
From the maintenance point of view,
62,000 miles (100,000 km) accumulated
in short-distance urban driving are not
equivalent to the same distance cov-
ered at moderate speeds in long-
distance highway travel.
The BMW Maintenance System, which
is based on operating conditions,
includes the Engine Oil Service and
Inspections I and II.
Determining the maintenance intervals
according to the actual loads on the ve-
hicle covers every kind of operating sit-
uation. However, even those drivers who
put significantly less than 6,000 miles
(10,000 km) on their vehicles annually,
should have the engine oil changed at
least every two years since oil deterio-
rates over time, regardless of use.
Service Warranty Information
Booklet (US models)/Warranty
and Service Guide Booklet
(Canadian models)For additional information on mainte-
nance intervals and procedures, please
refer to the Service and Warranty
Information Booklet (US models) or the
Warranty and Service Guide Booklet
(Canadian models).
Have your BMW center perform
maintenance and repair work.
Your BMW center is always informed on
the latest maintenance work and repair
techniques and equipped with the re-
quired special tools. In addition, check-
ing parts known from experience to be
subject to wear is a permanent part of
the maintenance specifications.
Be sure that all maintenance work is
confirmed in the Service and Warranty
Information Booklet (US models) or the
Warranty and Service Guide Booklet
(Canadian models). These entries are
your proof of regular vehicle mainte-
nance and the basis for warranty
claims.<
The BMW Maintenance System
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Storing your vehicle
If you plan on parking the vehicle
for more than three months,
please adhere the maintenance opera-
tions described below.<
Preparations for storageHave your BMW center perform the
following procedures:
1 Clean and apply a rustproofing agent
or other treatment to the engine,
engine compartment, undercarriage,
axles and major components in accor-
dance with approved repair proce-
dures. Wash the vehicle, clean the
interior and treat painted and
chromed parts. Clean the weather-
stripping around the hood, luggage
compartment and doors
2 Change engine oil and oil filter at op-
erating temperature. As an additional
corrosion protection measure, an an-
ticorrosive agent can be added to the
engine in accordance with the manu-
facturer's instructions
3 Check the coolant level and concen-
tration and top off if necessary
4 Check the fluid level of the wind-
shield washer fluid reservoir; top off
if necessary
5 Fill the fuel tank completely to pre-
vent the formation of condensation
6 Increase the tire inflation pressure to
51 psi (350 kPa).Before parking the vehicle1 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 area. Place the
transmission in first gear or, if neces-
sary, chock the wheels to prevent the
vehicle from rolling. Do not engage
the parking brake
3 Remove the battery, charge it com-
pletely and store it in a cool (but
frost-free) room
4 Remove the hardtop and store it
separately, refer to page 95
5 Close the convertible top.During storageRecharge a battery that has been taken
out of the car 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 136.
Then have Inspection I performed by
your BMW center, including a brake
fluid replacement, if necessary. Refer to
the Service and Warranty Information
Booklet (US models) or the Warranty
and Service Guide Booklet (Canadian
models).
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IndexDataTechnologyRepairsCar careControlsOverview
Capacities
Notes
Fuel tank
Reserve gal. (liters)
gal. (liters)approx. 19.3 (approx. 73)
approx. 2.6 (approx. 10)Fuel quality: page 24
Windshield washer system/
Headlamp washer system quarts (liters) approx. 5.6 (approx 5.3)For details: page 108
Cooling system including heater
circuitquarts (liters) 16.4 (15.5) For details: page 111
Engine oil filter change quarts (liters) 7.9 (7.5) "BMW High Performance Synthetic
Oil." For details: page 110
Manual transmission quarts (liters) 2.0 (1.9) Lifetime fluid; no fluid change required
Differential quarts (liters) 1.3 (1.2) Fluid change at the 1,200 Mile Service,
then lifetime fluid; no fluid change
required