2002 MERCEDES-BENZ SLK CLASS engine

131 The first 1 000 miles
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index The first 1 000 miles (1 500 km)
The more cautiously you treat your vehicle during the
break-in period, the more satisfied you will be with its
performance later on. Therefore, drive your vehicle
during the first 1 000 miles (1 500 km) at moderate
vehicle and engine speeds.
During this period, avoid heavy loads (full throttle
driving) and excessive engine speeds.
Manual transmission:
Downshift at proper engine speeds.
Automatic transmission:
Avoid accelerating by kickdown. It is not recommended
to brake the vehicle by manually shifting to a lower gear.
We recommend that you select positions “3”, “2” or “1”
only at moderate speeds (for hill driving).
After 1 000 miles (1 500 km) speeds may be gradually
increased to the permissible maximum.Maintenance
We strongly recommend that you have your vehicle
serviced by your authorized Mercedes-Benz Center, in
accordance with the Service Booklet at the times called
for by the FSS.
Failure to have the vehicle maintained in accordance
with the Service Booklet at the designated times /
mileage may result in vehicle damage not covered by
the Mercedes-Benz Limited Warranty.
For information on the Flexible service system (FSS),
see page 77.

140 Catalytic converter
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Catalytic converter
Your Mercedes-Benz is equipped with monolithic type
catalytic converters, an important element in
conjunction with the oxygen sensors to achieve
substantial control of the pollutants in the exhaust
emissions. Keep your vehicle in proper operating
condition by following our recommended maintenance
instructions as outlined in your Service Booklet.
Caution!
To prevent damage to the catalytic converters, use only
premium unleaded gasoline in this vehicle.
Any noticeable irregularities in engine operation should
be repaired promptly. Otherwise, excessive unburned
fuel may reach the catalytic converter causing it to
overheat, which could start a fire.
Wa r n i n g !
As with any vehicle, do not idle, park or operate
this vehicle in areas where combustible materials
such as grass, hay or leaves can come into contact
with the hot exhaust system, as these materials
could be ignited and cause a vehicle fire.

141 Emission control
Te ch n i c a l
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Emission control
Certain systems of the engine serve to keep the toxic
components of the exhaust gases within permissible
limits required by law.
These systems, of course, will function properly only
when maintained strictly according to factory
specifications. Any adjustments on the engine should,
therefore, be carried out only by qualified Mercedes-
Benz Center authorized technicians. Engine
adjustments should not be altered in any way. Moreover,
the specified service jobs must be carried out regularly
according to Mercedes-Benz servicing requirements.
For details refer to the Service Booklet.
Wa r n i n g !
Inhalation of exhaust gas is hazardous to your
health. All exhaust gas contains carbon monoxide,
and inhaling it can cause unconsciousness and
lead to death.Do not run the engine in confined areas (such as a
garage) which are not properly ventilated. If you
think that exhaust gas fumes are entering the
vehicle while driving, have the cause determined
and corrected immediately. If you must drive under
these conditions, drive only with at least one
window fully open.

142 Steering lock
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Steering lock
0The key can be withdrawn in this position only. The
steering is locked when the key is removed from the
steering lock. If necessary, move steering wheel
slightly to allow the locking mechanism to engage.
In vehicles equipped with automatic transmission,
the key can only be removed with the selector lever
in position “P”. After removing the key or with the
key in steering lock position 0, the selector lever is
locked in position “P”.1Steering is unlocked.
(If necessary, move steering wheel slightly to allow
the key to be turned clockwise to position 1.)
Most electrical consumers can be operated. For
detailed information see respective subjects.
2Driving position.
3Starting position.
See page 144 for instructions on starting and turning off
the engine.
2
3
0
1
Wa r n i n g !
When leaving the vehicle always remove the key
from the steering lock, and lock the vehicle. Do not
leave children unattended in the vehicle, or with
access to an unlocked vehicle. Unsupervised use of
vehicle equipment may cause serious personal
injury.

143 Steering lock
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
A warning sounds when the driver’s door is opened
while the key is in steering lock position 1 or 0.
With the engine at idle speed, the charging rate of the
alternator (output) is limited.
It is therefore recommended that you turn off
unnecessary electrical consumers while driving in stop-
and-go traffic. This precaution helps to avoid draining of
the battery.
Unnecessary strain on the battery and charging system
may be minimized by turning off the following power
consumers, for example: Heated seats, rear window
defroster.Caution!
To prevent accelerated battery discharge and a possible
dead battery, always remove the key from the steering
lock. Do not leave the key in steering lock position 0.

144 Starting and turning off the enging
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Starting and turning off the engine
Before starting
Ensure that parking brake is engaged and that selector
lever is in position “P” or “N” (gearshift lever in
neutral). Turn key in steering lock to position 2.
Starting
Vehicles with automatic transmission:
Do not depress accelerator. Briefly turn key in steering
lock clockwise to the stop and release. The starter will
engage until the engine is running.
If engine will not run, and the starting procedure stops,
turn key completely to the left and repeat starting the
engine.
After several unsuccessful attempts, have the system
checked at the nearest authorized Mercedes-Benz
Center.Vehicles with manual transmission:
Do not depress accelerator. Fully depress clutch pedal,
otherwise the engine cannot be started due to the
integrated safety interlock.
Turn key in steering lock clockwise to the stop. Release
key only when the engine is firing regularly.
Important!
Due to the installed starter nonrepeat feature, the key
must be turned completely to the left before attempting
to start the engine again.
In areas where temperatures frequently drop below
-4°F(-20°C) we recommend that an engine block heater
be installed. Your authorized Mercedes-Benz Center will
advise you on this subject, see page 165.
Turning off
Turn the key in the steering lock to position 0 to stop the
engine.
Vehicles with automatic transmission:
The key can only be removed with your foot off the
brake pedal and the selector lever in position “P”.

145 Manual transmission
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Manual transmissionSee illustration for gearshift lever positions
corresponding to the individual gears.
Stop the vehicle completely before shifting into reverse;
to shift into reverse, pull the gearshift lever up.
Do not exceed the maximum engine speed in the
individual gears. Refer to tachometer (see page 76) for
engine speeds.
4 1
6
5
1
3
R
4
R4
6
13
5
2
2
P26.60-2053-26

146 Manual transmission
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Important!
Downshifting gears leading to overrevving the engine
can result in transmission damage that is not covered
by the Mercedes-Benz Limited Warranty.
Do not exceed engine speed limits, see page 76 .
Wa r n i n g !
For vehicles equipped with a manual transmission,
getting out of your vehicle with the gearshift lever
not engaged in 1st or reverse gear and parking
brake engaged is dangerous.
Also, when parked on an incline, an engaged 1st or
reverse gear alone may not prevent your vehicle
from moving, possibly hitting people or objects.Always set the parking brake in addition to
engaging 1st or reverse gear, see page 156 for
parking brake.When parked on an incline, also turn front wheel
towards the road curb.
Wa r n i n g !
When leaving the vehicle always remove the key
from the steering lock, and lock the vehicle. Do not
leave children unattended in the vehicle, or with
access to an unlocked vehicle. Children could move
the gearshift lever, which could result in an
accident or serious injury.Wa r n i n g !
On slippery road surfaces as well as high engine
speeds, never downshift in order to obtain braking
action. This could result in drive wheel slip and
reduced vehicle control. Your vehicle’s ABS will not
prevent this type of loss of control.