BMW 528I User Manual download pdf (Page 124)

124n

Break-in procedure

To ensure that your vehicle provides

maximum economy throughout a long

service life, we request that you ob-

serve the following:

Engine and differential

Up to 1,200 miles (2,000 km):

Drive at varying engine speeds and road

speeds, but do not exceed 4,500 rpm

and the following road speeds during

this initial period:

BMW 528i: 100 mph (160 km/h)

BMW 540i: 106 mph (170 km/h)

Obey your local and state maximum

speed limits.

Refrain from using full throttle and avoid

pressing the accelerator beyond the

kickdown point.

Once you have driven 1,200 miles

(2,000 km), engine and vehicle speeds

can gradually be increased.

You should also comply with these

break-in procedures if the engine or dif-

ferential is replaced later in the course

of the vehicle service life.

Tires

Due to technical factors associated

with their manufacture, tires do not

achieve their full traction potential until

an initial break-in period has elapsed

for this reason, drive with extra care

during the initial 200 miles (300 km).

Obey your local and state maximum

speed limits.

When the vehicle is operated on

wet or slushy roads, a wedge of

water may form between the tire and

the road surface. This phenomenon is

referred to as aquaplaning, or hydro-

planing, and can lead to partial or com-

plete loss of traction, vehicle control

and braking effectiveness. Reduce your

speed on wet roads.<

Brake system

Approximately 300 miles (500 km) must

elapse before the brake pads and rotors

achieve the optimal pad-surface and

wear patterns required for trouble-free

operation and long service life later on.

To break in the separate parking brake

drums, apply the parking brake lightly

when coasting to a standstill (at a traffic

signal, for instance), provided that traf-

fic conditions allow you to do so. To

avoid corrosion, repeat this procedure

from time to time.

The brake lamps do not come on

when the parking brake is applied.

Vacuum for the brake system servo unit

on your BMW is available only when the

engine is running. When you move the

car with the engine shut off – when

towing, for instance – substantially

higher levels of pedal force will be

required to brake the vehicle.<

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