BMW M ROADSTER COUPE 2001 Repair Manual

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IndexDataTechnologyRepairsCar careControlsOverview
Cruise control
*
You can store and automatically main-
tain any desired vehicle speed above
approx. 25 mph (40 km/h).
The system is switched off and the
stored speed deleted from its memory
when you turn the ignition key to posi-
tion 0.
Do not use the cruise control on
winding roads, when high traffic
density prevents driving at a constant
speed, when the road surface is slick
(snow, rain, ice) or when the road
surface is loose (rocks or gravel,
sand).< 365us059
To store and maintain speed/
to acceleratePress the lever briefly in direction 1:
The system records and maintains the
current vehicle speed. Every time you
briefly press the lever, the speed
increases by approx. 0.6 mph (1 km/h).
Hold the lever in position 1:
The vehicle accelerates without pres-
sure on the accelerator pedal. When
you release the lever, the system stores
and maintains the current speed.
If, on a downhill grade, the engine
braking effect is insufficient, the
controlled speed can be exceeded.
Speed can drop on uphill grades if the
engine output is insufficient.< To deceleratePress the lever briefly in direction 2:
If you are already driving with active
cruise control, the speed is decreased
by approx. 0.6 mph (1 km/h) every time
you briefly press the lever.
Hold the lever in position 2:
With the cruise control active, the
system automatically reduces the
throttle opening to slow the vehicle.
When you release the lever, the system
stores and maintains the current speed.Activate stored setting (resume)Press the lever briefly in direction 3:
The vehicle accelerates to and main-
tains the last speed stored.To deactivatePress the lever briefly in direction 4:
The cruise control is deactivated imme-
diately.
In addition, the system is also automati-
cally deactivated in response to the
following conditions:
>When you apply the brakes.
>When you depress the clutch.
>If you exceed or fall below the
programmed speed for an extended
period (by depressing the acceler-
ator, for example).
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1 OdometerYou can activate the displays shown in
the illustration with the ignition key in
position 0 by pressing the button in the
instrument cluster (arrow).2 Trip odometerTo reset the trip odometer to zero,
press the button (arrow) with the igni-
tion key in position 1 or higher.36mus728
Never allow the engine to operate with
the needle in the red overspeed sector
of the gauge.
To protect the engine, the engine
management system automatically
interrupts the fuel supply in this range;
you will notice a loss of power.36mde750
When you switch on the ignition, the
indicator lamp comes on briefly to
confirm that the system is operational.
Once the indicator lamp stays on
continuously, there are still approx.
2.1 gallons (8 liters) of fuel in the fuel
tank.
Tank capacity: page 159.
If the tilt of the vehicle varies (extended
driving in mountainous areas, for
example), the needle may fluctuate
slightly.
Please refuel early, since driving
to the last drop of fuel can result in
damage to the engine and/or catalytic
converter.< 36mus729
Odometer Tachometer Fuel gauge
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IndexDataTechnologyRepairsCar careControlsOverview
Coolant temperature gauge Engine oil temperatureBlueThe engine is still cold. Drive at
moderate engine and vehicle speeds.RedWhen you switch on the ignition, the
warning lamp comes on briefly to
confirm that the system is operational.
Comes on while driving: the engine is
overheated. Switch off the engine
immediately and allow it to cool down.36mde752
Between the blue and red zonesNormal operating range. It is not
unusual for the needle to rise as far as
the edge of the red zone in response to
high outside temperatures or severe
operating conditions.
Checking coolant level: page 112.
During normal operation the engine oil
temperature is between 175 7 (80 6)
and 250 7 (120 6). During perfor-
mance-oriented driving, do not exceed
the maximum temperature of 265 7
(130 6).
Up to an oil temperature of 140 7
(60 6) an engine speed of 4,000 rpm
may not be exceeded.
36mus730
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Service Interval Display Outside temperature ClockGreen lamps The number of illuminated lamps
decreases as the time for your next
maintenance visit approaches.Yellow lamp This field appears together with
OILSERVICE or INSPECTION.
This alerts you that maintenance is due.
Please arrange for an appointment with
your BMW center.Red lamp Maintenance is overdue.36mus731
The display appears from ignition key
position 1.36mus732
Set the clock
Starting in ignition key position 0.
Press adjustment knob (arrow) with a
pointed object, e.g. a ballpoint pen.
Press briefly: setting is carried out in
steps of one minute.
Keep pressing: setting is carried out in
fast mode.
Releasing adjustment knob stops
setting.36mde756
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IndexDataTechnologyRepairsCar careControlsOverview
The conceptDSC helps maintain vehicle stability,
even in critical driving situations.
The system optimizes vehicle stability
during acceleration and when starting
from a full stop, as well as optimizing
traction. In addition, it recognizes
unstable vehicle conditions, such as
understeering or oversteering, and, as
far as is possible within the laws of
physics, helps keep the vehicle on a
steady course by reducing the engine
speed and brake applications to the
individual wheels.
The DSC is operational every time you
start the engine.
Indicator lamp
The indicator lamp in the instru-
ment cluster goes out shortly
after you switch on the ignition.
Refer to page 22.
The indicator lamp flashes:
DSC is active and controls the drive
and braking forces.
If the indicator lamp fails to go out after
the engine has been started, or if it
comes on during normal driving and
stays on: the DSC has been switched
off via the button or there is a malfunc-
tion. You can continue to drive the
vehicle normally, but without DSC.
In the event of a malfunction, please
consult your BMW center.
To deactivate the systemPress the button (arrow) – the indicator
lamp comes on and remains on.
When the DSC is deactivated, you are
operating the vehicle in the conven-
tional drive mode.
In the following exceptional circum-
stances, it may be effective to deacti-
vate the DSC for a short period:
>When rocking the vehicle or starting
off in deep snow or on loose surfaces
>When driving with snow chains.
To help maintain driving stability,
always drive with the DSC acti-
vated when possible.< 36mus733
Dynamic Stability Control (DSC)
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Dynamic Stability Control (DSC)To reactivate the systemPress the button again; the indicator
lamp will go out.
The laws of physics cannot be
repealed, even with DSC. The
results of driving irresponsibly rest with
the driver. We therefore urge you to
avoid using the additional safety margin
of the system as an excuse for taking
risks.
Do not make any modifications to the
DSC system. Allow only authorized
technicians to perform service proce-
dures on the DSC.<
You will find additional details
concerning DSC in the chapter
"Advanced technology" on page 151.
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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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Tire Pressure Warning (RDW)Activating/deactivating the
systemThe system is automatically active in
ignition key position 2 and is therefore
always on during driving.
To deactivate the system: tap the
button, the indicator lamp will light up.
To activate the system: tap the button
again, the indicator lamp goes out.
Deactivate the system while driving
with snow chains, since false warnings
and undetected losses in pressure are
possible under these kinds of condi-
tions. 36mus735
Flat tire
The indicator lamp in the instru-
ment cluster will flash in the
event of tire pressure loss. To
come to an immediate stop, reduce
speed, while avoiding any sudden, jerky
braking or steering maneuvers.
Fix the flat tire using the M Mobility
system (refer to page 135).
Reset the indicator lamp: the indicator
lamp must be switched off manually
after mounting a new wheel. At this
point, hold the RDW button down until
the indicator lamp goes out. Re-
initialize the system afterward.
The RDW cannot alert you to
severe and sudden tire damage
caused by external factors.
The RDW will not identify the natural
loss of pressure in all four tires, either.<
Check the tire inflation pressure
on a regular basis and correct if
necessary. Refer to page 26.
Under certain circumstances, there
may be false warnings or a delayed
detection of pressure losses when
driving on snow-covered or slippery
road surfaces.
A sporty driving style (slip at the wheels
receiving the torque, high lateral accel-
eration) can lead to delayed RDW warn-
ings.<
System malfunctionAs long as there is still a malfunction,
the indicator lamp in the instrument
cluster will stay lit.
Please contact your BMW center for
assistance.
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IndexDataTechnologyRepairsCar careControlsOverview
Parking lamps/Low beamsParking lamps (position lamps/
side marker lamps)
Position 1
With the switch in this position,
vehicle lighting on both sides is
on.
Low beams
Position 2
When you switch the ignition off
while the low beams are still on,
only the parking lamps (position lamps/
side marker lamps) remain on.
36mus736
Instrument panel lightingIn order to adjust the illumination
intensity, turn the pulled switch. "LIGHTS ON" warningWhen you open the driver's door after
turning the ignition key to position 0,
a warning signal sounds for a few
seconds to remind you if the low beams
have not been switched off.Daytime running lamps
*
The headlamps are automatically
switched on for daylight driving at
ignition key position 2.
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Interior lampsM roadster1 Continuously off
2 Automatically controlled
3 Continuously on36mde762
M roadster
M coupe – front1 Continuously on
2 Continuously off
3 Automatically controlled36mde763
M cou
pe
M coupe – rear1 Continuously on
2 Continuously off
3 Automatically controlled367de626
M coupe
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