Bmw 2006 bmw 325i Bedienungsanleitung PDF herunterladen (Seite 120)

120n

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 oper-

ating conditions where brake applica-

tions are less frequent, there is an

increased tendency for corrosion of the

discs 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

discs by brake applications is not

reached.

If the brake discs 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: use only

brake pads that BMW has

approved for your particular 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

When driving in wet conditions and in

heavy rain, it is effective to apply light

pressure to the brakes every few miles

or kilometers. Be aware of traffic condi-

tions to ensure that this maneuver does

not endanger other road users. The

heat that is generated by the brake

applications helps to dry the brake

pads and discs.

Maximum braking force is obtained

while the wheels are not locked, but

rather when they are still barely turning

immediately prior to locking. ABS main-

tains this state automatically. If the ABS

fails, you should revert to the staggered

braking technique described on

page 122.

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.

The braking effect of the engine can be

further increased by downshifting, into

first gear, if necessary. In the manual

mode of the automatic transmission,

you can also downshift into first gear.

Refer to page 66.

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 by applying more substantial

pressure to the brake pedal (watch for

following traffic), releasing the pedal,

and then repeating the application

(staggered braking). The cooling

phases between active braking inter-

vals prevent the brakes from over-

heating, thus ensuring that full braking

capacity remains available at all times.

Do not coast with the clutch

depressed or with the shift lever

or selector lever in neutral. Do not drive

with the engine shut off. The engine

provides no braking effect when the

clutch is depressed or the transmission

is in neutral, and there is no power-

assist for braking or steering when the

engine is not running.

BMW 325xi, 330xi: have brake inspec-

tions performed at a BMW center only.

If you do not, parts of the four-wheel

drive system could be damaged.

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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