142
n
Please comply with the following
instructions, which are intended to
ensure that your car achieves its
optimum operating life and economy.
Engine and final drive
Up to 2,000 km (approx. 1,300 miles):
drive at varying road and engine
speeds, but do not exceed the
following maximum values:
>
Cars with spark-ignition (petrol)
engine
6-cylinder: 4,500 rpm
or 160 km/h (100 mph)
8-cylinder: 4,500 rpm
or 170 km/h (105 mph)
>
Cars with diesel engine
3,500 rpm
or 150 km/h (93 mph)
Observe the national speed limits.
Avoid full throttle and do not use the
automatic transmission "kick-down".
From a distance reading of 2,000 km
(approx. 1,300 miles) onwards, engine
and road speeds can be gradually
increased.
Comply with these running-in instruc-
tions again if an exchange engine or
final drive is fitted later in the car's life.
Tyres
New tyres do not achieve their full road
grip immediately, for production
reasons. You should therefore drive in a
restrained manner for the first 300 km
(approx. 200 miles).
Braking system
Brake pads and discs do not achieve a
favourable wear and contact pattern
until the car has covered about 500 km
(approx. 300 miles).
Clutch
The clutch likewise needs to be run in
for about 500 km (approx. 300 miles)
before it will operate with maximum
efficiency. Operate the clutch gently
while running it in.
Brakes:
Do not rest your foot on the brake
pedal while the car is in motion. Even
slight continuous pressure on the brake
pedal could cause overheating, brake
pad wear or even brake system failure.
Aquaplaning:
When driving on wet or slushy surfaces,
reduce speed to prevent a wedge of
water from forming between the tyre
and the road. This situation, known as
aquaplaning, means that the tyre can
actually lose contact completely with
the road surface, so that the car can
neither be steered nor can the brakes
be properly applied.
Water on the road:
When there is water on the roads, drive
through it only to a max. depth of 30 cm
(approx. 12 in), and no faster than
walking pace, otherwise the engine,
electrical system and transmission may
be damaged.
Running in
Driving hints
ba.book Page 142 Tuesday, December 17, 2002 4:26 PM
Содержание 520D BROCHURE 2009
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