
215 Contents – Driving
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
DrivingControl and operation of 
radio transmitters  ..................... 216
The first 1 000 miles 
(1 500 km)  ................................. 217
Maintenance ................................... 217
Tele Aid  ........................................... 218
Catalytic converter  ........................228
Emission control  ............................229
Starter switch  .................................230
Starter switch – 
KEYLESS-GO ..............................232
Starting and turning off 
the engine  ..................................235
Automatic transmission  ...............237
Parking brake  .................................246
Driving instructions  ......................247
Drive sensibly – 
Save Fuel  .....................................247
Drinking and driving .................247Pedals .......................................... 247
Power assistance ........................ 248
Brakes .......................................... 248
Driving off ................................... 249
Parking ........................................ 250
Tires ............................................. 251
Snow chains  ............................... 253
Winter driving instructions  ..... 254
Block heater ................................ 255
Deep water  .................................. 256
Passenger compartment  ........... 256
Traveling abroad  ........................ 257
Cruise control  ................................ 258
Distronic (DTR)  .............................. 261
Brake assist system 
(BAS) .......................................... 277
Antilock brake system 
(ABS) .......................................... 278
Electronic stability program 
(ESP) ........................................... 280Active body control 
(ABC) ..........................................284
Level control system for vehicles 
with Airmatic system  ...............285
Level control system for vehicles 
with Active Body Control 
(ABC) ..........................................286
Adaptive damping system 
(ADS) ...........................................289
Parking assist (Parktronic)  .......... 291
What you should know 
at the gas station  .......................296
Check regularly and 
before a long trip  ......................299 

217 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.
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 149. 

230 Starter switch
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Starter switch
0The electronic key can be withdrawn in this position 
only. The electronic key can only be removed with 
the selector lever in position “P”. After removing the 
electronic key or with the electronic key in starter 
switch position 0 or 1, the selector lever is locked in 
position “P”.1Most electrical consumers can be operated. For 
detailed information see respective subjects.
2Driving position.
Gear selector lever is unlocked. 
To move the selector lever out of position “P”, firmly 
depress the service brake pedal.
3Starting position.
See page 235 for instructions on starting and stopping 
the engine.
See page 42 for instructions on the simultaneous use of 
the electronic key and the KEYLESS-GO-function.
P54.25-2427-26
Wa r n i n g !
When leaving the vehicle always remove the 
electronic key from the starter switch, take the 
KEYLESS-GO-card (if so equipped) with you 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. 

232 Starter switch — KEYLESS-GO
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Start- / Stop button (vehicles with KEYLESS-GO)
Symbols on start-/stop button for Canada only:
See page 235 for instructions on starting and turning off 
the engine.
See page 42 for instructions on the simultaneous use of 
the electronic key and the KEYLESS-GO-function.Pressing the start- / stop button (1) on the gear selector 
lever without depressing the brake pedal will 
sequentially activate the starter switch positions 1 (on) 
and 2 (operation) and 0 (off).
The engine can be started with the starter switch in any 
position (on, operation or off), as long as the gear 
selector lever is in position “P” or “N” and the brake 
pedal depressed.
1
P82.50-0759-26
Wa r n i n g !
When leaving the vehicle always take the electronic 
key and the KEYLESS-GO-card with you, 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. 

233 Starter switch — KEYLESS-GO
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index “On” position 
(starter switch position 1, see page 230).
Most electrical consumers can be operated. For detailed 
information see respective subjects.
Operation / driving position 
(starter switch position 2, see page 230).
All electrical consumers can be operated. Gear selector 
is unlocked.
“Off” position 
(electronic key removable from starter switch).
Most electrical consumers cannot be operated.
The selector lever is locked in position “P”.
Notes:
For improved recognition of the KEYLESS-GO-card the 
doors should be closed when pressing the start- / stop 
button.
The gear selector lever can only be moved with the 
vehicle battery charged and connected, and the starter 
switch in the Operation position. With the gear selector 
lever in position “P”, the brake pedal must also be 
depressed.Important!
For the KEYLESS-GO-system to function properly, the 
operator should observe the following:
•If the KEYLESS-GO-card is positioned farther away 
from the vehicle (e.g. inside clothing or a briefcase), 
the vehicle cannot be locked (see page 38) or started 
with the start-/stop button (see page 235).
•If the KEYLESS-GO-card is removed from the vehicle 
while the engine is running, or by placing the card 
in front of the center armrest (see page 198), the 
message “CHIP-CARD – NOT RECOGNIZED!” will 
appear repeatedly for approx. 2 seconds in the 
multifunction display, see page 328.
If the message “CHIP - CARD – NOT RECOGNIZED” 
is ignored for an extended of time (approx. 
15 minutes), the engine could stop by itself during a 
vehicle stop (e.g. traffic light). The vehicle can then 
no longer be centrally locked or the engine 
restarted. You must first find the card. Start the 
engine again. 

235 Starting and turning off the engine
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Starting and turning off the engine
Before starting
Ensure that parking brake is engaged and that selector 
lever is in position “P” or “N”.
Important!
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 255.
Starting with the electronic key
Do not depress accelerator.
Turn electronic key in starter switch to position 2. 
Briefly turn electronic key in starter switch 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 electronic 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.
Important!
Due to the installed starter non-repeat feature, the 
electronic key must be turned completely to the left 
before attempting to start the engine again.
Note:
Too many unsuccessful starting attempts may discharge 
the battery.
Turning off with the electronic key
Put the selector lever in position “P” and turn the 
electronic key in the starter switch to position 0 to stop 
the engine.
The electronic key can only be removed with the 
selector lever in position “P”. 

236 Starting and turning off the engine
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Starting with KEYLESS-GO
Note:
For improved recognition of the chip card the doors 
should be closed when pressing the start-/stop button.
Depress brake pedal during the starting procedure.
Do not depress accelerator.
Briefly press start-/stop button on gear selector lever. 
The starter will engage until the engine is running.
If engine will not run, and the starting procedure stops, 
press start-/stop button on gear selector lever and repeat 
starting the engine.
After several unsuccessful attempts, have the system 
checked at the nearest authorized Mercedes-Benz 
Center.Turning off with KEYLESS-GO
Stop the vehicle and put the selector lever in 
position “P”.
Press start-/stop button on the selector lever until the 
engine stops. With the driver’s door closed the starter 
switch is set to the “On” position (starter switch 
position 1). With the driver’s door opened the starter 
switch is set to the “Off” position (starter switch 
position  0, same as electronic key removed from starter 
switch).
Note:
The engine can only be turned off with selector lever in 
position “P”. If attempting to turn off the engine while 
the selector lever is in any other position than “P” a 
signal sounds and the message “SELECTOR LEVER 
TO P” appears in the multifunction display as a 
reminder to move the selector to position “P”. 

237 Automatic transmission
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Automatic transmissionThe automatic transmission selects individual gears 
automatically, dependent upon
•Selector lever position
•Program mode selector
•Accelerator position
•Vehicle speed
The gear shifting process is continuously adapted, 
dependent on the driving style, the driving situation 
and the road characteristics.
Important!
When parking the vehicle or before working on the 
vehicle with the engine running, firmly depress the 
parking brake pedal and shift the selector lever into “P”.
P27.60-2174-27