BMW SERIE 3 COUPE 2000 Manuel du propriétaire télécharger pdf (Page 110)

108n

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, and in op-

erating conditions where brakes appli-

cations 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 that must

be exerted by the pads to clean the

rotors by brake applications is not

reached.

If the brake rotors are corroded, they

will tend to respond to braking with a

pulsating effect that even extended

brake applications will fail to cure.

For your own safety: Only use

brake linings that BMW has re-

leased for your particular vehicle model.

BMW cannot vouch for driving safety or

the suitability of brake linings other than

those they have released.<

Driving notes

While driving in wet conditions and in

heavy rain, it is effective to apply light

pressure to the brake pedal every few

miles (kilometers). Watch traffic condi-

tions to ensure that this maneuver does

not endanger other road users. The

heat that is generated by the brake ap-

plications helps to 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 on page 110.

Long or steep mountain descents do

not necessarily lead to reduced braking

efficiency if you drive downhill with the

transmission in a gear that allows mini-

mal brake applications (or, with an auto-

matic transmission, in an appropriate

lower range).

You can further increase the engine's

braking effect by selecting a lower gear,

downshifting as far as first gear or plac-

ing the selector lever in position (1).

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!) and then pausing

before repeating the 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 de-

pressed or with the transmission

or selector lever in neutral. Do not drive

with the engine shut off. The engine

provides no braking effect when the

clutch pedal is depressed or the trans-

mission is in neutral, and there is no

power-assist for brakes and steering

when the engine is not running.

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.<

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