beautypg.com

Special operating instructions, Break-in procedures – BMW 325Ci Coupe 2004 User Manual

Page 112

background image

112

Special operating instructions

Break-in procedures

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

The first 1,250 miles/2,000 km:

Drive at varying engine and road
speeds, but do not exceed an engine
speed of 4,500 rpm or a road speed of
100 mph / 160 km/h.

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
engine or vehicle speeds once the ini-
tial 1,250 miles/2,000 km have elapsed.

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 hydroplaning and can
lead to partial or complete loss of trac-
tion, vehicle control and braking effec-
tiveness. 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 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 traf-
fic signal, for instance – provided that
traffic conditions allow you to do so.

To avoid corrosion, repeat this proce-
dure from time to time.

Clutch

Approx. 300 miles/500 km must elapse
before the clutch starts to operate at
optimum efficiency. Remember to
engage the clutch carefully during this
initial period.

After replacing parts

Follow the same break-in procedures if
any of the components mentioned
above have to be replaced in the future.

Online Edition for Part-No. 01 41 0 158 112 - © 03/04 BMW AG