Bedienungsanleitung BMW M roadster (Seite 103 von 198) (Englisch)

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Index Data Technology Repairs Car care Controls Overview

Disc brakes

Disc brakes furnish optimum decelera-

tion and braking control and greater

fade resistance under heavy use.

When the vehicle is driven only occa-

sionally, during extended periods when

the vehicle is not used at all, or in oper-

ating conditions where brake applica-

tions are less frequent, there is an in-

creased tendency for corrosion of the

rotors and accumulation of contamina-

tion on the brake pads. This occurs be-

cause the minimal pressure which must

be exerted by the pads to clean the

rotors by brake applications is not

reached.

The pads must exert a minimal pressure

against the rotors for the brakes to

clean themselves effectively; under the

conditions described above, this may

not happen. If the brake rotors are cor-

roded, they will tend to respond to

braking with a pulsating effect which

even extended application will fail to

cure.

For your own safety: Use only

brake pads that BMW has ap-

proved for your specific vehicle model.

BMW cannot evaluate non-approved

brake pads to determine if they are

suited for use, and therefore cannot en-

sure the operating safety of the vehicle

in the event of their use.<

Driving notes

While driving in wet conditions and in

heavy rain, it is a good idea to apply

light pressure to the brake pedal every

few miles – watch traffic conditions to

ensure that this maneuver does not en-

danger other road users. The heat gen-

erated in this braking process helps dry

the brake pads and rotors.

Maximum braking force is obtained

while the wheels continue to rotate,

peaking when the wheels remain on the

verge of locking without actually doing

so. ABS maintains this state automati-

cally. If the ABS fails, you should revert

to the staggered braking technique

described below on page 106.

Extended or steep mountain descents

do not necessarily have to lead to re-

duced braking efficiency; shift down to

a gear in which only minimal periodic

brake applications are required (you can

move the selector lever to the appropri-

ate lower range if your car is equipped

with an automatic transmission).

You can continue to increase the

engine's braking effect by selecting

progressively lower gears, shifting

down as far as 2nd or 1st for extreme

descents, or position 1 or 2 with auto-

matic transmision.

Should engine braking prove inade-

quate, you should still avoid extended,

continuous braking. Instead, decelerate

the vehicle with increased pressure on

the brake pedal (watch for following traf-

fic), release the pedal and then repeat

the brake application (staggered brak-

ing). This staggered braking technique

allows the brakes to cool in the intervals

between active braking phases, pre-

venting overheating and ensuring that

full braking capacity remains available at

all times.

Do not allow the vehicle to coast

when the clutch is depressed or

by shifting into neutral while moving. Do

not drive when the engine is switched

off. The engine provides no braking

control when the clutch is depressed or

the transmission is in neutral and there

is no power assist for the brakes when

the engine is shut off.

Never allow floor mats, carpets or any

other objects to protrude into the area

around the accelerator, clutch and

brake pedals and obstruct their move-

ment.<

Missbrauch melden von Frage und/oder Antwort

Libble nimmt den Missbrauch seiner Dienste sehr ernst. Wir setzen uns dafür ein, derartige Missbrauchsfälle gemäß den Gesetzen Ihres Heimatlandes zu behandeln. Wenn Sie eine Meldung übermitteln, überprüfen wir Ihre Informationen und ergreifen entsprechende Maßnahmen. Wir melden uns nur dann wieder bei Ihnen, wenn wir weitere Einzelheiten wissen müssen oder weitere Informationen für Sie haben.

BMW M roadster Seite 103

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