BMW M3 Bedienungshandbuch PDF herunterladen (Seite 106)

106n

Disk brakes

Disk 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, and in

operating conditions where brake appli-

cations are less frequent, there is an

increased tendency for corrosion of the

disks and accumulation of contamina-

tion on the brake pads. This occurs

because the minimal pressure that must

be exerted by the pads to clean the

disks by brake applications is not

reached.

If the brake disks are corroded, 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 which BMW has

approved for your specific vehicle

model. BMW cannot evaluate non-

approved brake pads to determine if

they are suited for use, and therefore

cannot ensure the operating safety of

the vehicle if they are installed.<

Driving notes

While driving on wet roads or in heavy

rain, it is a good idea to apply light

pressure to the brake pedal every few

miles or kilometers. Watch traffic condi-

tions to ensure that this maneuver does

not endanger other road users. The

heat which is generated by the brake

applications helps to dry the brake

pads and disks.

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 should ever fail, pump

the brakes if possible (refer to

page 109).

Extended or steep mountain descents

should be driven in the gear in which

only minimal periodic brake application

is required. This avoids excessive strain

on the brakes and possible

impairment of the braking effect. Stay

within the allowable engine speed

range. For further information, refer to

page 69.

The braking effect of the engine can be

further increased by downshifting, into

first gear, if necessary.

Should engine braking prove inade-

quate, you should still avoid extended,

continuous braking. Instead of main-

taining low to moderate pressure over

an extended period of time, you should

decelerate the vehicle by applying more

substantial force on the pedal (watch

for following traffic). Pause before

repeating the brake application. This

staggered braking technique allows the

brakes to cool in the intervals between

active braking phases, preventing over-

heating and ensuring that full braking

capacity remains available at all times.

Do not coast with the clutch

depressed, with the shift lever in

neutral or with the engine shut off. The

engine does not provide any braking

effect with the transmission in neutral or

with the engine shut off.

Do not allow floor mats, carpets or any

other objects to protrude into the area

around the brake pedal, the clutch or

the accelerator which could obstruct

their freedom of movement.<

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