Break-In Procedures 98 - BMW SERIE 3 COUPE 2002 Owner's Manual

Break-in procedures
98n
To ensure that your vehicle provides
maximum economy throughout a long
service life, we request that you comply
with the following information.
Engine and differential
Up to 1,200 miles (2,000 km):
Constantly vary both engine and vehicle
speed, remembering not to exceed
4,500 rpm or 100 mph (160 km/h)
during this period.
Always obey all official speed limits.
Do not use full throttle, and avoid
pressing the accelerator beyond the
kickdown point during these initial
miles.
You can then proceed to increase both
engine and vehicle speed once the
initial 1,200 miles (2,000 km) have
elapsed.
You should also observe the same
break-in procedures if the engine or
differential is replaced later in the
course of the vehicle's life.
Tires
Due to technical factors associated
with their manufacture, tires do not
achieve their full traction potential until
after an initial break-in period. We thus
ask you to drive with extra care during
the first 200 miles (300 km).
Always obey all official 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
complete loss of traction, vehicle
control and braking effectiveness.
Reduce your speed on wet
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 an extended 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 come on
when the parking brake is set.
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 off – when
towing, for example – substantially
higher levels of pedal force will be
required to brake the
roads.<
Clutch
Approx. 300 miles (500 km) must
elapse before the clutch starts to
operate at optimum efficiency.
Remember to engage the clutch care-
fully during this initial period.
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