2003 MERCEDES-BENZ SL55AMG catalytic converter

Contents
Retractable hardtop........................... 159
Opening and closing the retractable
hardtop ........................................ 159
Driving systems ................................. 168
Cruise control .............................. 168
Distronic* .................................... 171
Active Body Control (ABC) ........... 183
Parktronic system* ...................... 186
Useful features .................................. 190
Interior storage spaces ................ 190
Ashtray......................................... 196
Cigarette lighter ........................... 197
Heated steering wheel* (Canada
only–model SL 500) ..................... 197
Easy-Pack load assist in the trunk 198
Electrical outlet ............................ 199
Telephone* .................................. 199
Tele Aid ........................................ 200
Garage door opener ..................... 208Operation......................................... 213
The first 1000 miles (1500 km) ......... 214
Driving instructions............................ 215
Drive sensibly – save fuel............. 215
Drinking and driving ..................... 215Pedals ........................................... 215
Power assistance .......................... 216
Brakes........................................... 216
Driving off ..................................... 218
Parking.......................................... 218
Tires .............................................. 219
Hydroplaning................................. 219
Tire traction .................................. 220
Tire speed rating ........................... 220
Winter driving instructions ............ 221
Standing water.............................. 222
Passenger compartment ............... 222
Driving abroad .............................. 222
Control and operation of radio trans-
mitters .......................................... 222
Catalytic converter........................ 223
Emission control ........................... 224
Coolant temperature..................... 224
At the gas station ............................... 225
Check regularly and before a
long trip ........................................ 226Engine compartment .......................... 227
Hood ............................................. 227
Engine oil ...................................... 228
Transmission fluid level ................ 230
Oil level in the ABC system ........... 230
Coolant ......................................... 230
Battery .......................................... 232
Windshield washer system and
headlamp cleaning system ........... 233
Tires and wheels ................................ 234
Important guidelines ..................... 234
Life of tires ................................... 235
Direction of rotation ..................... 235
Checking tire inflation pressure .... 235
Rotating wheels ............................ 238
Winter driving ..................................... 239
Winter tires ................................... 239
Block heater (Canada only) ........... 240
Snow chains ................................. 240
Maintenance ...................................... 241
Clearing the service indicator ....... 241
Service term exceeded ................. 241
Calling up the service indicator .... 242
Resetting the service indicator ..... 242
Vehicle care ....................................... 243
Cleaning and care of the vehicle ... 243

42 Getting startedDrivingDriving
Place the gear selector lever in
positionD orR.

Release the brake pedal.

Carefully depress the accelerator
pedal.
Once the vehicle is in motion, the automat-
ic central locking system engages and the
locking knobs drop down.After a cold start, the transmission engag-
es at a higher revolution. This allows the
catalytic converter to reach its operating
temperature earlier.iYou can open a locked door from the
inside. Open door only when conditions
are safe to do so.!If you hear a warning signal when driv-
ing off, you have forgotten to release
the parking brake.
Release the parking brake.
iWait for the gear selection process to
complete before setting the vehicle in
motion.Warning!
G
It is dangerous to shift the selector lever out
ofP orN if the engine speed is higher than
idle speed. If your foot is not firmly on the
brake pedal, the vehicle could accelerate
quickly forward or in reverse. You could lose
control of the vehicle and hit someone or
something. Only shift into gear when the en-
gine is idling normally and when your right
foot is firmly on the brake pedal.
!Simultaneously depressing the acceler-
ator pedal and applying the brake re-
duces engine performance and causes
premature brake and drivetrain wear.Warning!
G
On slippery road surfaces, never downshift
in order to obtain braking action. This could
result in drive wheel slip and reduced vehi-
cle control. Your vehicle’s ABS will not pre-
vent this type of loss of control.

45 Getting started
Driving
Wiping with windshield washer fluid
Push switch in the direction of arrow1
past the resistance point.
The windshield wiper operates with
washer fluid.
Information on filling up the washer reser-
voir can be found in the "Operation" sec-
tion (page 233).
Problems while driving
The engine runs erratically and misfires

An ignition cable may be damaged.


The engine electronics may not be op-
erating properly.


Unburned gasoline may have entered
the catalytic converter and damaged it.

Give very little gas.

Have the problem repaired by an au-
thorized Mercedes-Benz Center as
soon as possible.
The coolant temperature gauge is over
248°F (120°C)
The coolant is too hot and is no longer
cooling the engine.

Stop the vehicle as soon as possible
and turn off the engine. Allow engine
and coolant to cool.

Check the coolant level and add cool-
ant if necessary (
page 230).
!If leaves, snow, etc. block the wind-
shield wipers, the wiper motor turns
off.

For safety reasons, withdraw key
from starter switch. Remove block-
age.


Turn the windshield wipers on
again.
If windshield wipers fail to function at
all in switch positionI,


set the combination switch to the
next highest wiper speed.


have the windshield wipers
checked at the nearest authorized
Mercedes-Benz Center.

223 Operation
Driving instructions
Telephones and two-way radios
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
Refer to the radio transmitter operation in-
structions regarding use of an external an-
tenna.
Catalytic converter
Your Mercedes-Benz is equipped with
monolithic type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial con-
trol of the pollutants in the exhaust emis-
sions. Keep your vehicle in proper
operating condition by following our rec-
ommended maintenance instructions as
outlined in your Service Booklet.
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.
!To prevent damage to the catalytic con-
verters, only use 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 caus-
ing it to overheat, which could start a
fire.
Warning!
G
As with any vehicle, do not idle, park or op-
erate this vehicle in areas where combusti-
ble 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.

229 Operation
Engine compartment
You can check the engine oil level on the
multifunction display.
Turn the key in the starter switch to
position2.
The standard display (
page 110) should
appear in the multifunction display fields.

Press button
k
or
j
on the
steering wheel until the following mes-
sage is seen in the right display field:
Measurement correct only if veh.
levelAfter about three seconds this mes-
sage is displayed:
Engine oil level –
Measuring now!
One of the following messages will sub-
sequently appear in the indicator:

Engine oil level OK



Engine oil add 1.0 qt (1.0 li-
ter)!


Engine oil add 1.5 qt (1.5 li-
ters)!



Engine oil add 2.0 qt (2.0 li-
ters)!
Adding engine oil
1Filler neck

Unscrew the cap from the filler neck1.
Be careful not to overfill with oil.
Be careful not to spill any oil when adding.
Avoid environmental damage caused by oil
entering the ground or water.

Screw the cap back on the filler neck. !Excessive oil must be siphoned or
drained off. It could cause damage to
the engine and catalytic converter not
covered by the Mercedes-Benz Limited
Warranty.

280 Practical hintsWhat to do if …Left display
Right display
Possible cause
Possible solution
:
Engine oil level
Check level!
The engine oil level is too low.

Check the engine oil level (
page 228) and
add oil as required.
Engine oil level
Reduce oil level!
You have added too much engine oil.
There is a risk of damaging the en-
gine or the catalytic converter.

Have oil siphoned. Observe all legal require-
ments with respect to its disposal.
Engine oil
Visit workshop!
The engine oil has dropped to a crit-
ical level.
There is water in the oil.

Check the engine oil level (
page 228) and
add oil as required.

If you must add engine oil frequently, have
the engine checked for possible leaks.

Have the oil checked.
Engine oil level
Visit workshop!
The measuring system is malfunc-
tioning.

Have the measuring system checked by an
authorized Mercedes-Benz Center.

323 Practical hints
Jump starting
Jump starting
If the starter battery is discharged, the en-
gine can be started with jumper cables and
the battery of another vehicle.Observe the following:


Jump starting should only be performed
when the engine and catalytic convert-
er are cold.


Do not start the engine if the battery is
frozen. Let the battery thaw out first.


Only use 12V batteries to jump start
your vehicle. Jump starting with a more
powerful battery could damage the ve-
hicle’s electrical system, which will not
be covered by the Mercedes-Benz
Limited Warranty.


Only use jumper cables with sufficient
cross section and insulated terminal
clamps.
Always make sure that the jumper ca-
bles are not on or near pulleys, fans, or
other parts that move when the engine
is started or running.
Warning!
G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
Read all instructions before proceeding.
!Jump starting may only be performed
on the battery installed in the engine
compartment.
Avoid repeated and lengthy starting at-
tempts.
Do not attempt to start the engine us-
ing a battery quick charge unit.
If the engine does not run after several
unsuccessful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and
may present a fire risk.
Make sure the jumper cables do not
have loose or missing insulation.
Make sure the cable clamps do not
touch any other metal part while the
other end is still attached to a battery.

359 Index
Brakes 216
Warning lamp 253
Break-in period 214
Bulbs, replacing
Backup lamps 299
Brake lamps 296
Front lamps 295, 298
License plate lamps 300
Parking lamps 299
Rear fog lamp 299
Standing lamps 299
Tail lamp assemblies 299
Turn signal lamps, front 298
Turn signal lamps, rear 299
C
CAC (Customer Assistance Center) 351
CAN System 351
Capacities
Fuels, coolants, lubricants etc. 342
Catalytic converter 223
CD player
Operating 116
Center air vents 23
Center console
Lower part 24
Upper part 23Centigrade
Setting temperature units 122
Central locking
Automatic 91
Central locking switch 92
Switching on/off (control
system) 128
Unlocking from inside 92
Central locking switch 23
Central unlocking switch 23
Changing
Batteries (key) 293
Batteries (KEYLESS-GO* card) 294
Key setting 81
KEYLESS-GO* card setting 86
Vehicle level 185
Charging
Vehicle batteries 321
CHECK ENGINE malfunction indicator
lamp 21, 256
Checking
Batteries (KEYLESS-GO* card) 87
Coolant level 230
Oil level 226, 228
Tire inflate pressure 226
Vehicle lighting 226Vehicle lock status (KEYLESS-GO*
card) 87
Child safety
Airbags 54
Automatic child seat recognition 64
Infant and child restraint systems 52
Cigarette lighter 23, 197
Cleaning
Headlamps 146
Windshield 44
Clock 19
Closing
Glove box 190
Hood 228
Retractable hardtop (electronic
key) 164
Retractable hardtop (switch) 161
Side windows 158
Side windows (KEYLESS-GO*) 88
Sunshade* 167
Trunk lid 83, 91
Cockpit 352
Collapsible tire 352
COMAND 23
COMAND* 352
COMAND*, radio and telephone 222