BMW X5 2003 Owner's Manual download pdf (Page 130)

130n

Break-in procedures

To ensure that your vehicle provides

maximum economy throughout a long

service life, we request that you

observe the following instructions:

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:

6-cylinder engines: 100 mph/160 km/h

8-cylinder engines: 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 should the engine

or one of the differentials be replaced

later in the course of the vehicle's ser-

vice 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

Approx. 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 traffic

conditions allow you to do so.

To avoid corrosion, repeat this proce-

dure from time to time.

The brake lamps do not light up

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

vehicle with the engine switched off –

when towing, for instance – substan-

tially higher levels of pedal force will be

required to brake the vehicle.<

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