272 OperationThe first 1 000 miles (1 500 km)
In the “Operation” section you will find de-
tailed information on operating, maintain-
ing and caring for your vehicle.
The first 1 000 miles (1 500 km)
The more cautiously you treat your vehicle
during the break-in period, the more satis-
fied you will be with its performance later
on.
Drive your vehicle during the first
1 000 miles (1 500 km) at varying but
moderate vehicle and engine speeds.
During this period, avoid heavy loads
(full throttle driving) and excessive en-
gine speeds (no more than
2/3 of maxi-
mum rpm in each gear).
Avoid accelerating by kickdown.
Do not attempt to slow the vehicle
down by shifting to a lower gear using
the gear selector lever.
Select positions3,2or1 only when
driving at moderate speeds (for hill
driving).All of the above instructions, as may apply
to your vehicle type, also apply when driv-
ing the first 1 000 miles (1 500 km) after
the engine or the rear differential has been
replaced.
After 1 000 miles (1 500 km), you may
gradually increase vehicle and engine
speeds to the permissible maximum.
!Additional instructions for AMG vehi-
cles:
During the first 1 000 miles
(1 500 km), do not exceed a speed
of 85 mph (140 km / h).
During this period, avoid engine
speeds above 4500 rpm in each
gear.
iAlways obey applicable speed limits.
423 Technical terms
Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this en-
g ine s pe ed r ang e, a s it ma y r es ult i n se -
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Parktronic (Parking assist)*
System which uses visual and acoustic
signals to assist the driver during park-
ing maneuvers.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing
engine
clutch/torque converter
transmission
transfer case
drive shaft
differential
axle shafts/axlesProgram mode selector switch
Used to switch the automatic transmis-
sion between regular operationS and
comfort operationC.
CLK 55 AMG with steering wheel gear-
shift control and manual shift program:
In addition toS andC (for regularS or
comfortC operation, see above) you
can use theM for manual shift
program.
