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270 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
ABS control
The ABS malfunction indicator lamp- in the 
instrument cluster comes on with the electronic key in 
starter switch position 2 and should go out with the 
engine running.
When the ABS malfunction indicator lamp in the 
instrument cluster comes on while the engine is 
running, it indicates that the ABS has detected a 
malfunction and has switched off. In this case, the brake 
system functions in the usual manner, but without 
antilock assistance.
For ABS malfunction indicator lamp, see page 294.
With the ABS malfunctioning, the BAS and ESP are also 
switched off. Both malfunction indicator lamps come on 
with the engine running.
If the charging voltage falls below 10 volts, the 
malfunction indicator lamp comes on and the ABS is 
switched off. When the voltage is above this value again, 
the malfunction indicator lamp should go out and the 
ABS is operational.If the ABS malfunction indicator lamp stays illuminated, 
have the system checked at your authorized 
Mercedes-Benz Center as soon as possible.
Note:
To alert following vehicles to slippery road conditions 
you discover, operate your hazard warning flashers as 
appropriate.
Wa r n i n g !
ABS cannot prevent the natural laws of physics 
from acting on the vehicle, nor can it increase 
braking or steering efficiency beyond that afforded 
by the condition of the vehicle brakes and tires or 
the traction afforded. The ABS cannot prevent 
accidents, including those resulting from excessive 
speed in turns, following another vehicle too 
closely, or aquaplaning. Only a safe, attentive, and 
skillful driver can prevent accidents. The 
capabilities of a ABS equipped vehicle must never 
be exploited in a reckless or dangerous manner 
which could jeopardize the user’s safety or the 
safety of others. 
         
        
        
     
        
        Page 276 of 424

271 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Electronic stability program (ESP)
The ESP enhances directional control and reduces 
driving wheel spin of the vehicle under various driving 
conditions.
Over/understeering of the vehicle is counteracted by 
applying brakes to the appropriate wheel to create a 
countervailing vehicle movement. Engine torque is also 
limited. The ESP warning lamp, located in the 
speedometer dial, starts to flash when ESP is in 
operation.Important!
If the ESP warning lampv flashes:
•During take-off apply as little throttle as possible.
•While driving ease up on the accelerator.
•Adapt your speed and driving to the prevailing road 
conditions.
•Do not switch off the ESP.
Caution!
If the vehicle is towed with the front axle raised (see 
page 351, towing the vehicle), the engine must be shut 
off (electronic key in starter switch position 0 or 1). 
Otherwise, the ESP will immediately be engaged and 
will apply the rear wheel brakes.
Wa r n i n g !
ESP cannot prevent the natural laws of physics 
from acting on the vehicle, nor can it increase the 
traction afforded. The ESP cannot prevent 
accidents, including those resulting from excessive 
speed in turns, or aquaplaning. Only a safe, 
attentive, and skillful driver can prevent accidents. 
The capabilities of an ESP equipped vehicle must 
never be exploited in a reckless or dangerous 
manner which could jeopardize the user’s safety or 
the safety of others. 
         
        
        
     
        
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272 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Notes:
The yellow ESP warning lampv in the speedometer 
dial comes on with the electronic key in starter switch 
position 2. It should go out with the engine running.
If the ESP warning message is displayed, a malfunction 
has been detected in the system. Only partial engine 
output will be available.
Have the ESP checked at your authorized 
Mercedes-Benz Center as soon as possible.
For ESP warning message, see page 303.
With the ABS malfunctioning, the ESP is also switched 
off.
Driving the vehicle with varied size tires will cause the 
wheels to rotate at different speeds, therefore the ESP 
may activate (yellow ESP warning lamp in speedometer 
dial comes on). For this reason, all wheels, including the 
spare wheel, must have the same tire size. When testing the parking brake on a brake test 
dynamometer, the engine must be shut off. Otherwise, 
the ESP will immediately be engaged and will apply the 
rear wheel brakes. 
In winter operation, the maximum effectiveness of the 
ESP is only achieved with Mercedes-Benz recommended 
M+S rated radial-ply tires and/or snow chains.
Synchronizing ESP
If the power supply was interrupted (battery 
disconnected or empty), the ESP warning message may 
be displayed with the engine running.
Turn steering wheel completely to the left and then to 
the right. The ESP warning message should go out. 
         
        
        
     
        
        Page 278 of 424

273 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index ESP control switch
ESP control switch located on center console.
1Press to switch ESP off
ESP warning lampv, located in speedometer 
dial, comes on.
2Press to switch ESP on
ESP warning lampv, located in speedometer 
dial, goes out.To improve the vehicle’s traction when driving with 
snow chains, or starting off in deep snow, sand or gravel, 
switch off ESP by pressing the upper half (1) of the ESP 
switch. The ESP warning lampv, located in the 
speedometer dial, is continuously illuminated.
With the ESP system switched off, the engine torque 
reduction feature is cancelled. Therefore, the enhanced 
vehicle stability offered by ESP is unavailable.
Adapt your speed and driving to the prevailing road 
conditions.
A portion of the ESP system remains active, even with 
the switch in the OFF position.
If one drive wheel loses traction and begins to spin, the 
brake is applied until the wheel regains sufficient 
traction. The traction control engages at vehicle speeds 
up to approximately 24 mph (40 km/h), and switches off 
at 50 mph (80 km/h).
Wa r n i n g !
When the ESP warning lamp is illuminated 
continuously, the ESP is switched off. Adapt your speed and driving to the prevailing road 
conditions. 
         
        
        
     
        
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274 Driving systems
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data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Notes:
Avoid spinning of one drive wheel. This may cause 
serious damage to the drive train which is not covered 
by the Mercedes-Benz Limited Warranty.
The ESP warning lamp, located in the speedometer dial, 
starts to f lash at any vehicle speed as soon as the tires 
lose traction and the wheels begin to spin.
To return to the enhanced vehicle stability offered by 
ESP: press lower half (2) of the switch (the ESP warning 
lamp in the speedometer dial goes out).Vehicles with Distronic (DTR):
With the ESP switched off, the Distronic could not be 
switched on. See page 253 for activation of Distronic.
Important!
If the ESP warning lamp flashes:
•during take-off, apply as little throttle as possible,
•while driving, ease up on the accelerator.
Wa r n i n g !
ESP should not be switched off during normal 
driving other than in circumstances described 
above. Disabling of the system will reduce vehicle 
stability in standard driving maneuvers. 
         
        
        
     
        
        Page 282 of 424
277 Driving systems
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Level control switch positions
Normal level – indicator lamps (3, 4) are not 
illuminated. To change from raised level options I or II, 
press lower half of switch (2) once respectively twice.
Raise level, option I – indicator lamp (3) is illuminated. 
To change from normal level, press upper half (1) of 
switch.
To change from raised level, option II, press lower 
half (2) of switch.
Raised level, option 2 – indicator lamps (3, 4) are 
illuminated.
To change from normal level or raised level, option I, 
press upper half (1) of switch once respectively twice.Normal level
Used for normal operation of the vehicle.
Speed dependent lowering of vehicle chassis 
(approximate values):
•between 0 mph (0 km/h) and 35 mph (60 km/h) 
– none
•between 35 mph (60 km/h) and 85 mph (140 km/h) 
– lowered progressively by approx. 7/16inch (11 mm) 
         
        
        
     
        
        Page 284 of 424

279 Parking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Parking assist (Parktronic)
The Parktronic system assists the driver during parking 
maneuvers. It visually and audibly indicates the relative 
distance between the vehicle and an obstacle.
The front area of the vehicle is monitored when driving 
forward. When reversing or with the gear selector lever 
in position “N”, the front as well as the rear areas are 
monitored.
With the electronic key in starter switch position 2, 
Parktronic engages automatically at speeds up to 
approximately 10 mph (15 km/h) and deactivates during 
higher speeds.
Parktronic can be switched off by a control switch 
located in the center console. It engages automatically 
again when starting the engine.
See page 283 for parktronic switch.
Wa r n i n g !
Parktronic is a supplemental system. It is not 
intended to nor does it replace the need for extreme 
care. The responsibility during parking and other 
critical maneuvers rests always with the driver.Special attention must be paid to objects having 
smooth surfaces or low silhouettes (e.g. trailer 
couplings, painted posts, or street curbs). Such 
objects may not be detected by the system and can 
damage the vehicle.The operational function of the Parktronic can be 
affected by dirty sensors, especially at times of 
snow and ice. See page 378 for notes on cleaning 
the parktronic system sensors.Interference caused by other ultrasonic signals 
(e.g. working jackhammers or the air brakes of 
trucks) can cause the system to send erratic 
indications, and should be taken into 
consideration. 
         
        
        
     
        
        Page 285 of 424
280 Parking system
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Sensors
1Sensors located in bumpers
(front bumper shown)A total of 10 sensors (1) monitor the vehicle’s front and 
rear areas. Six sensors are located in the front bumper, 
four sensors in the rear bumper.
For proper operation of the Parktronic always keep the 
sensors clean, especially at times of snow and ice.
See page 378 for instructions on cleaning the sensors in 
the bumpers.
1
1
1