
2 Contents
Storing steering column 
position in memory  ..................... 70
Rear view mirrors  ............................ 71
Inside rear view mirror  ............... 71
Antiglare night position .............. 71
Exterior rear view mirrors .......... 72
Storing mirror positions in 
memory .......................................... 73
Instrument cluster  ........................... 74
Indicator lamps in the
instrument cluster  ....................... 76
Additional function indicator 
lamps .............................................. 77
Instrument lamps  ......................... 77
Display illumination  .................... 77
Coolant temperature gauge  ........ 78
Outside temperature
indicator ........................................ 78
Trip odometer  ............................... 79
Clock .............................................. 79
Tachometer .................................... 79
Flexible service system (FSS)  ........ 80
Engine oil level indicator in odometer 
display field  ................................. 82Fuel consumption gauge  ................ 83
Engine oil temperature gauge  ....... 83
Engine oil consumption  ................. 83
Exterior lamp switch ....................... 84
Standing lamps  ............................ 85
Night security illumination  ....... 85
Combination switch  ........................ 86
Blocked windshield wiper  .......... 88
Windshield wiper smears  .......... 88
Windshield and 
headlamp washer fluid
mixing ratio  .................................. 88
Hazard warning flasher 
switch ........................................... 89
Automatic climate control .............. 90
Display and controls  ................... 92
Basic setting -
automatic mode  ........................... 93
Economy ........................................ 93
Special settings  ............................ 94
Audio and telephone, operation .... 98
Power windows  ............................... 116
Express opening of 
door windows  .............................. 117Synchronizing
power windows ............................117
Roll bar  .............................................118
Interior lighting  ............................. 120
Interior lamps  ............................. 120
Reading lamps  ............................ 120
Entrance lamps in footwells,
exit lamps in doors  .................... 120
Sunshade, manual  ......................... 121
Power sunshade  ............................. 122
Sun visors  ....................................... 123
Illuminated vanity mirror  ............ 123
Interior ............................................ 124
Storage compartment
(eyeglasses compartment)
in the dashboard  ....................... 124
Interior central
locking system ............................ 125
Integration with vehicle 
central locking system  .............. 126
Separate locking of storage 
compartments ............................. 126
Armrest ........................................... 127
Console storage compartments  ... 127 

26 Contents - Operation
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Operation Vehicle keys  ...................................... 28
Remote control with 
folding master key  ....................... 28
Central locking system  ................... 29
Remote control  ............................. 29
Locking and unlocking ................ 30
Choosing global or selective 
mode on remote control  .............. 31
Opening the trunk  ....................... 31
Panic button  .................................. 32
Start lock-out  .................................... 33
General notes on the 
central locking system  ............... 33
Doors .................................................. 34
Central locking switch  .................... 36
Automatic central locking  .......... 37
Emergency unlocking in case of 
accident ........................................ 38
Trunk ................................................. 38
Trunk lid release switch  ................. 39
Trunk lid emergency release  ......... 40
Power windows ................................. 41Antitheft alarm system ................... 42
Tow-away alarm  ............................... 43
Power seats ....................................... 44
Storing position in memory  ....... 46
Backrest ............................................ 48
Multicontour seats  .......................... 49
Seat heater ........................................ 50
Seat belts and integrated 
restraint system  .......................... 52
Seat belts  .......................................... 52
Seat belt nonusage
warning system ............................ 53
Fastening of seat belts  ................ 54
BabySmart
TM airbag 
deactivation system  ................... 58
Self-test BabySmart
TM 
without special child
seat installed  ............................... 58
Supplemental restraint
system (SRS)  ............................... 59
Emergency tensioning
retractor (ETR)  ............................ 59
Airbags .............................................. 60
Front airbags  ................................ 62Side impact airbags  ..................... 62
Safety guidelines for the
seat belt, emergency tensioning 
retractor and airbag ..................... 67
Infant and child
restraint systems .......................... 68
Adjusting steering column  ............. 70
Storing steering column 
position in memory  ..................... 70
Rear view mirrors  ............................ 71
Inside rear view mirror ............... 71
Antiglare night position .............. 71
Exterior rear view mirrors .......... 72
Storing mirror positions in 
memory .......................................... 73
Instrument cluster  ........................... 74
Flexible service system (FSS)  ........ 80
Engine oil level indicator in odometer 
display field  ................................. 82
Fuel consumption gauge  ................ 83
Engine oil temperature gauge ........ 83
Engine oil consumption  .................. 83
Exterior lamp switch  ....................... 84
Standing lamps ............................. 85 

75 Instrument cluster
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 1Fuel gauge with reserve and fuel cap placement 
warning lamp (yellow), see page 207
2Coolant temperature gauge, see page 78
3Fuel consumption gauge, see page 83
4Engine oil temperature gauge, see page 83
5Left turn signal indicator lamp (green), 
see combination switch on page 86
6K nob for intensity of  instrum ent l amps, see pa ge 77, 
for resetting trip odometer, see page 79 and 
for calling up FSS indicator, see page 80
7Speedometer8EPS warning lamp (yellow), see page 207
9Odometer display field, see page 82
10Main/trip odometer, see page 79
or FSS indicator, see page 80
or engine oil level indicator, see page 82
11Outside temperature indicator, see page 78
12Right turn signal indicator lamp (green), 
see combination switch on page 86
13Tachometer, see page 79
14Knob for setting clock, see page 79
15Clock, see page 79 

83 Checking engine oil level 
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Notes:
If the symbols : and I are continuously 
illuminated after pressing button (1) twice and there is 
no change in the odometer display field or the low 
engine oil level warning lamp comes on, a malfunction 
has occurred to the system. Perform the engine oil level 
check with the dipstick.
If no oil leaks are noted continue to drive to the nearest 
Mercedes-Benz Center to have the system checked.
Observe the engine oil temperature gauge.
Fuel consumption gauge
While driving, instantaneous fuel consumption is 
indicated in miles per gallon (mpg), or in Canada liters 
per 100 kilometers (l/100 km).
With the engine switched off, the needle reads “0”.
Due to system design, minimum consumption is 
indicated at idle speed.Engine oil temperature gauge
Normal operating engine oil temperatures are from 
175°F (80°C) to 250°F (120°C).
During severe operating conditions and stop-and-go 
traffic, the engine oil temperature may rise close to the 
red marking.
The engine should not be operated with the engine oil 
temperature in the red zone. Doing so may cause 
serious engine damage which is not covered by the 
Mercedes-Benz Limited Warranty.
When the engine oil temperature is close to the red 
marking, relieve the load on the engine by decreasing 
vehicle speed to lower engine oil temperature.
Once the engine oil temperature returns to the normal 
temperature range, the engine oil level should be 
checked. See page 82 or 222.
Engine oil consumption
Engine oil consumption checks should only be made 
after the break-in period. During the break-in period, 
higher oil consumption may be noticed and is normal. 
Frequent driving at high engine speeds results in 
increased consumption. 

183 Driving instructions
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Winter driving
Have your vehicle winterized at your authorized 
Mercedes-Benz Center before the onset of winter.
• Change the engine oil if the engine contains an oil 
which is not approved for winter operation. For 
viscosity (SAE/CCMC class) and filling quantity,
see page 277.
• Check engine coolant anticorrosion/antifreeze 
concentration.
• Additive for the windshield washer and headlamp 
cleaning system: Add MB Concentrate “S” to a 
premixed windshield washer solvent/antifreeze 
which is formulated for below freezing 
temperatures, see page 88.
• Test battery: Battery capacity drops with decreasing 
ambient temperature. A well charged battery helps 
to ensure that the engine can be started, even at low 
ambient temperatures.
• Tires: We recommend M+S rated radial-ply tires on 
all four wheels for the winter season. Observe 
permissible maximum speed for M+S rated 
radial-ply tires and the legal speed limit.Note:
In winter operation, the maximum effectiveness of the 
antilock brake system (ABS) or electronic stability 
program (ESP) can only be achieved with M+S rated 
radial-ply tires and/or snow chains recommended by 
Mercedes-Benz. Snow chains maximize performance.
Block heater (for Canada only)
The engine is equipped with a block heater.
The electrical cable may be installed at your authorized 
Mercedes-Benz Center.
Traveling abroad
Abroad, there is a widely-spread Mercedes-Benz service 
network at your disposal. If you plan to travel into areas 
which are not listed in the index of your Center 
directory, you should request pertinent information 
from your authorized Mercedes-Benz Center. 

210 Malfunction and indicator lamps
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Low windshield and headlamp washer system fluid 
level warning lamp
With the key in steering lock position 2, the 
warning lamp comes on. It should go out 
when the engine is running.
If the warning lamp does not go out after starting the 
engine, or if it comes on while driving, the level of the 
reservoir has dropped to approx. 1/3 of the total volume. 
The reservoir should be refilled with MB Windshield 
Washer Concentrate “S” and water (or commercially 
available premixed windshield washer solvent/
antifreeze, depending on ambient temperature - see 
page 88) at the next opportunity. The reservoir for the 
windshield and headlamp washer systems is located in 
the engine compartment.Low engine oil level warning lamp
With the key in steering lock position 2, the 
oil level warning lamp comes on. It should 
go out immediately when the engine is 
running.
If the warning lamp does not go out after starting the 
engine, or comes on with the engine running and at 
operating temperature, the engine oil level has dropped 
to approximately the minimum mark on the dipstick.
When this occurs, the warning lamp will first come on 
intermittently and then stay on if the oil level drops 
further.
If no leaks are noted, continue to drive to the nearest 
service station where the engine oil should be topped to 
the “full” mark on the dipstick with an approved oil.
The low engine oil level warning light should not be 
ignored. Extended driving with the light illuminated 
could result in serious engine damage that is not 
covered by the Mercedes-Benz Limited Warranty.
In addition to the warning lamp, the engine oil level 
should be periodically checked with the dipstick, for 
example during a fuel stop, or before a long trip,
see page 222. 

221 Engine compartment
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index To  cl os e:
Lower hood and let it drop into lock from a height of 
approx. 1 ft. (30 cm), assisting with hands placed flat on 
edges of hood (3).
To avoid hood damage, please make sure that hood is 
fully closed. If not, repeat closing procedure. Do not 
push down on hood to attempt to fully close it.
Wa r n i n g !
To help prevent personal injury, stay clear of 
moving parts when the hood is open and the engine 
is running. Be sure the hood is properly closed 
before driving. When closing hood, use extreme 
caution not to catch hands or fingers.The radiator fan may continue to run another 
approximate 30 seconds or even restart after the 
engine has been turned off. Stay clear from fan 
blades.
The engine is equipped with a transistorized 
ignition system. Because of the high voltage it is 
dangerous to touch any components (ignition coils, 
spark plug sockets, diagnostic socket) of the 
ignition system
• with the engine running,
• while starting the engine,
• if ignition is “on” and the engine is turned 
manually.If you see flames, steam or smoke coming from the 
engine compartment, or if the coolant temperature 
gauge indicates that the engine is overheated, do 
not open the hood. Move away from vehicle and do 
not open the hood until the engine has cooled. If 
necessary, call a fire department. 

222 Checking engine oil level
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Automatic transmission fluid level
The transmission has a permanent fill of automatic 
transmission fluid.
Regular automatic transmission fluid level checks and 
changes are not required. For this reason the dipstick is 
omitted.
If you notice f luid loss or gear shifting malfunctions, 
have your authorized Mercedes-Benz Center check the 
transmission fluid level.Checking engine oil level
SL 500
1Oil dipstick
2Oil filler cap
To check the engine oil level, park vehicle on level 
ground, with engine at normal operational temperature.
Check engine oil level approximately 5 minutes after 
stopping the engine, allowing for the oil to return to the 
oil pan.