
2 Contents
Safety guidelines for the
seat belt, emergency
tensioning retractor
and airbag  .................................. 100
Infant and child
restraint systems ....................... 102
Steering wheel adjustment  .......... 105
Rear view mirrors  .......................... 106
Rear view mirror,
automatic antiglare ................... 106
Memory function  ............................111
Instrument cluster  ..........................114
Multifunction steering wheel, 
multifunction display  ............... 120
Trip and main odometer,
FSS, tire inflation pressure 
monitor and 
engine oil level indicator  ......... 124
Audio systems  ................................ 125
Radio ............................................ 125
CD player  ..................................... 126
Cassette player  ........................... 127
Telephone ........................................ 128
Telephone book  .......................... 128
Redialing ..................................... 130Incoming call ...............................131
Navigation system  ..........................132
Distronic (DTR)  ...............................133
Trip computer  .................................134
Malfunction/warning
message memory  ......................136
Individual settings  .........................138
Setting the audio volume  ............. 146
Flexible service system
(FSS) ........................................... 147
Tire inflation
pressure monitor  .......................150
Engine oil level indicator  ..............154
Engine oil consumption  ................155
Exterior lamp switch ......................156
Headlamp mode  ..............................157
Night security illumination  ..........158
Headlamp cleaning system  ...........159
Combination switch  .......................160
Hazard warning flasher
switch ..........................................163
Automatic climate control .............164
Display and controls  ..................166
Dust filter  .....................................167Basic setting  ............................... 168
Special settings  .......................... 169
Air recirculation  ......................... 171
Activated charcoal filter  ............ 172
Economy mode  ........................... 173
Residual engine heat 
utilization .................................... 174
Switching the automatic 
climate control on and off ......... 175
Front center console storage 
compartment ventilation  .......... 175
Rear window defroster  .................. 176
Rear passenger compartment 
adjustable air outlets  ................ 177
Power windows ............................... 178
Sliding/pop-up roof  ....................... 181
Interior lighting  ............................. 184
Rear window sunshade  ................. 186
Sun visors  ....................................... 187
Vanity mirrors  ................................ 187
Interior ............................................ 188
Storage compartments
and armrests .............................. 188
Glove box  ..................................... 189 

3 ContentsCoat hooks  ...................................... 192
Cup holder  ...................................... 193
Ashtrays .......................................... 196
Lighter ............................................. 198
Parcel net in trunk  ........................ 199
Cargo tie-down hooks  ....................200
Parcel net in front
passenger footwell  ....................200
Telephone, general  ........................ 201
Garage door opener  .......................202
Infrared reflecting windshield  ....206
DrivingControl and operation of radio 
transmitters ...............................208
The first 1 000 miles
(1 500 km)  .................................209
Maintenance ...................................209
Tele Aid  ........................................... 210
Catalytic converter  ........................220
Emission control  ............................221
Starter switch  .................................222
Starter switch – KEYLESS-GO ......224Starting and turning off
the engine  .................................. 227
Automatic transmission  ............... 229
Parking brake  ................................ 238
Driving instructions ...................... 239
Drive sensibly – save fuel  ........ 239
Drinking and driving  ................ 239
Pedals .......................................... 240
Power assistance ........................ 240
Brakes .......................................... 240
Driving off ................................... 241
Parking ........................................ 242
Tires ............................................. 243
Snow chains  ............................... 245
Winter driving instructions  ..... 246
Deep water  .................................. 248
Passenger compartment  ........... 248
Traveling abroad  ........................ 249
Cruise control  ................................ 250
Distronic (DTR)  .............................. 253
Brake assist system 
(BAS) .......................................... 268
Antilock brake system 
(ABS) .......................................... 269Electronic stability program 
(ESP) ........................................... 271
Active body control (ABC)  ............275
Level control system  ...................... 276
Parking assist (Parktronic)  ..........279
What you should know 
at the gas station  .......................284
Check regularly 
and before a long trip  ...............287
Instrument cluster displayMalfunction and indicator
lamps in the 
instrument cluster  ....................290
On-board diagnostic system  .....290
Check engine malfunction 
indicator lamp .............................290
Brake warning lamp  ..................292
Supplemental restraint
system (SRS) 
indicator lamp .............................293
Fuel reserve warning .................293
ABS malfunction
indicator lamp .............................294 

4 Contents
Electronic stability program 
(ESP) — warning lamp  ...............295
Distronic (DTR) — 
warning lamp  ..............................295
Seat belt nonusage
warning lamp  ..............................296
Malfunction and indicator
lamp in the center console  ......296
AIRBAG OFF indicator lamp .....296
Malfunction and
warning messages in the 
multifunction display  ...............297
DISPLAY DEFECTIVE 
(engine control unit) ..................298
DISPLAY DEFECTIVE 
(several systems)  ........................298
BATTERY /ALTERNATOR  ..........299
ENTRANCE POSITION  ..............300
BRAKE ASSIST  ...........................300
BRAKE LINING WEAR  .............. 301
BRAKE FLUID  ............................. 301
PARKING BRAKE  .......................302
TRUNK OPEN  .............................302ELEC. STABIL. PROG.
(Electronic stability
program) ..................................... 303
COOLANT (coolant level)  ......... 304
COOLANT
(coolant temperature)  ............... 305
LIGHTING SYSTEM  ................... 306
LIGHT SENSOR  .......................... 308
SEAT BELT SYSTEM  .................. 308
TELEPHONE – FUNCTION  ....... 309
CRUISE CONTROL ..................... 309
ACTIVE  BO DY  CO NTROL 
(ABC) ............................................ 310
TIRE PRESSURE  .........................312
ENGINE OIL LEVEL  .................... 314
SEAT BACKREST ......................... 315
KEY ...............................................316
DOOR ............................................ 316
HOOD ............................................ 317
TELE AID ......................................317
ENGINE OIL LEVEL  .................... 318
WASHER FLUID  ..........................319
LIGHT SENSOR  .......................... 320
DISTRONIC (DTR)  ...................... 321
Practical hintsFirst aid kit  .....................................324
Fuses ................................................325
Shelf below rear window  ..............327
Hood .................................................328
Checking engine oil level  ............. 331
Automatic transmission 
fluid level  ...................................332
Active b od y control  
(ABC) fluid level ........................332
Coolant level  ...................................333
Adding coolant  ...........................333
Windshield and headlamp
washer system  ...........................334
Windshield and headlamp 
washer fluid mixing ratio  .........334
Spare wheel, vehicle tools, 
storage compartment ................335
Jack ...................................................336
Wheels .............................................337
Tire Replacement  .......................337
Rotating wheels  ..........................338
Spare wheel  ....................................338 

27 Contents - Operation
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index CD player  ..................................... 126
Cassette player  ........................... 127
Telephone ........................................ 128
Telephone book  .......................... 128
Redialing ..................................... 130
Incoming call  .............................. 131
Navigation system .......................... 132
Distronic (DTR) ............................... 133
Trip computer  ................................. 134
Malfunction/warning
message memory  ...................... 136
Individual settings ......................... 138
Setting the audio volume .............. 146
Flexible service system
(FSS) ............................................ 147
Tire inflation
pressure monitor  ...................... 150
Engine oil level indicator .............. 154
Engine oil consumption  ................ 155
Exterior lamp switch  ..................... 156
Headlamp mode  ............................. 157Night security illumination  ..........158
Headlamp cleaning system  ...........159
Combination switch  .......................160
Hazard warning flasher
switch ..........................................163
Automatic climate control .............164
Display and controls  ..................166
Dust filter  .....................................167
Basic setting  ................................168
Special settings  ...........................169
Air recirculation  ......................... 171
Activated charcoal filter  ........... 172
Economy mode  ........................... 173
Residual engine heat 
utilization .....................................174
Switching the automatic 
climate control on and off  ........ 175
Front center console storage 
compartment ventilation  .......... 175
Rear window defroster  .................. 176
Rear passenger compartment 
adjustable air outlets  ............... 177Power windows ............................... 178
Sliding/pop-up roof  ....................... 181
Interior lighting  ............................. 184
Rear window sunshade  ................. 186
Sun visors  ....................................... 187
Vanity mirrors  ................................ 187
Interior ............................................ 188
Storage compartments
and armrests .............................. 188
Glove box  ..................................... 189
Coat hooks  ...................................... 192
Cup holder  ...................................... 193
Ashtrays .......................................... 196
Lighter ............................................. 198
Parcel net in trunk  ........................ 199
Cargo tie-down hooks ....................200
Parcel net in front
passenger footwell  ....................200
Telephone, general  ........................ 201
Garage door opener  .......................202
Infrared reflecting windshield  ....206 

264 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Distance notification function
Even if Distronic is deactivated, the distance to the 
vehicle ahead continues to be measured, see page 266 
for multifunction display.
The Distronic lamp in the speedometer dial illuminates 
to advise the driver of a situation which under normal 
braking conditions and dry surfaces should have been 
addressed by the driver.
The distance notification function can be activated 
separately, see page 265. It operates when driving at 
speeds above approx. 25 mph (Canada: 30 km/h).
When recognizing a stationary obstacle or a slower 
vehicle moving in the vehicle’s path and the danger of a 
collision exists, the distance warning lamp in the 
speedometer dial lights up and simultaneously a 
continuous warning sounds.
Note:
Model CL 55 AMG only:
Distance notification function is deactivated if the 
vehicle speed exceeds approximately 160 mph 
(260 km/h).Important!
With the Distronic switched off, only the distance 
notification function operates, meaning the vehicle does 
not slow down.
Important!
Complex driving situations are not always fully 
recognized by Distronic, which could result in wrong or 
missing distance warnings.
See page 261 for additional driving hints.
Wa r n i n g !
If the distance warning lamp in the speedometer 
dial lights up while driving and a continuous 
warning sounds, immediate attention on the part of 
the driver is required.As required by the traffic situation, apply the 
service brakes and navigate around a possible 
obstacle. However, do not drive by relying on the 
distance notification function as that will result in 
an emergency braking application which, 
especially depending on road surface conditions 
and driver reaction, will not always be able to avoid 
a collision. 

265 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Distronic settings
1Switch – for distance notification function
2Thumbwheel – for setting distance
Distronic provides a safe following distance range to the 
vehicle in front. The medium setting is noticeable by a 
detent in the center position of the thumbwheel (2). 
If you want to:
•Increase distance – turn thumbwheel (2) 
towards¯.•Decrease distance – turn thumbwheel (2) 
towards®.
To switch the distance notification function on or off:
To switch on – press upper half of switch (1). 
The indicator lamp in the switch lights up.
To switch off – press lower half of the switch (1). 
The indicator lamp in the switch goes out.
For distance notification function see page 264.
Notes:
With the distance notification function activated, you 
will still be advised by a continuous audible warning if a 
potential emergency braking circumstance has been 
detected, even if Distronic has been deactivated.
The last selected notification function mode (on/off) will 
be stored in memory, even when removing the 
electronic key from the starter switch.
Wa r n i n g !
It is up to the driver to exercise discretion to select 
the appropriate setting given road conditions, 
traffic, driver’s preferred driving style and 
applicable laws and driving recommendations for 
safe following distance. 

281 Parking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Warning indicators
1Frame
2SegmentsVisual and audible signals indicate to the driver the 
relative distance between the vehicle and an obstacle.
Warning indicators for the front area are located above 
the left and center air outlets in the dashboard.
Warning indicators for the rear area are integrated in 
the rear headliner.
The frames (1) are illuminated when the Parktronic is 
engaged.
Each warning indicator has 6 yellow and 2 red 
segments.
As soon as the sensors detect an obstacle, one or more 
segments light up, depending on the distance. An 
intermittent acoustic warning will also sound as the 
seventh segment lights up and a constant acoustic 
warning lasting a maximum of 3 seconds will sound for 
the eighth segment.
2
1
P54.65-2043-26 

283 Parking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index The obstacle may not be recognized if outside the 
shaded sensor field, and no longer be indicated when 
approaching it any closer (warning indicators go out).
Parktronic malfunction
All red segments of the warning indicators light up, and 
a warning sounds for 3 seconds, if Parktronic does not 
function properly. The indicator lamp in the switch 
lights up and the system switches off automatically!
A dirty sensor could be the reason. See page 378 for 
instructions on cleaning the sensors in the bumpers.
After cleaning the sensors, turn electronic key in starter 
switch to position 2. If the defect continues to be 
displayed, have the system checked at your authorized 
Mercedes-Benz Center.Parktronic switch
The switch is located on the center console.
1Parktronic switched off
2Parktronic switched on
3Indicator lamp – comes on when Parktronic is 
switched off
The parktronic system is switched on again when 
turning the electronic key in starter switch position 2.3