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4.Switch off the engine.
Transmission position P will be engaged:
>after approx. 30 seconds
>if you remove the remote control from the 
ignition lock
Parking brake
The parking brake is primarily intended to pre-
vent the vehicle from rolling while parked; it 
brakes the rear wheels.
Indicator lamp
The indicator lamp lights up, and a sig-
nal also sounds when starting off. The 
parking brake is applied.
Indicator lamp for Canadian models.
Applying
The lever locks in position automatically.
Releasing
Pull slightly upwards, press the button and 
lower the lever.
If exceptional circumstances should 
make it necessary to apply the parking 
brake while the vehicle is in motion, do not pull it 
too firmly. In doing so, continuously press the 
button of the parking brake lever. Otherwise, 
too firm an application of the parking brake can 
lock up the rear wheels and cause the rear of the 
car to swerve.<
To prevent corrosion and one-sided brak-
ing action, occasionally apply the parking 
brake lightly when the vehicle is slowly coming to a stop if the traffic conditions are suitable. 
The brake lamps do not light up when the park-
ing brake is applied.<
Manual transmission
While shifting in the 5th/6th gear lane, 
press the gearshift lever toward the right, 
otherwise accidental shifting into the 3rd or 4th 
gear could result in engine damage.<
Reverse gear
Select only when the vehicle is stationary. 
When pressing the gearshift lever to the left, 
overcome some resistance.
Automatic transmission with 
Steptronic*
In addition to fully automatic operation, you can 
also manually shift with the Steptronic, refer to 
page61.
Transmission positions
P R N D M/S + – 

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Do not use washing mechanisms when 
the washer fluid reservoir is empty, other-
wise you will damage the washer pump.<
Washer fluid
Washer fluid antifreeze is flammable. For 
this reason, keep it away from ignition 
sources and store only in the closed original 
container out of reach of children. Otherwise, 
there is the danger of bodily injury. Always 
observe the instructions for use provided on the 
containers.<
Filler neck for washer fluid
Only add washer fluid with the engine 
cooled down to exclude contact with hot 
engine components. Otherwise there is a dan-
ger of fire and to personal safety if the fluid is 
spilled.<
All washer nozzles are supplied from one reser-
voir.
Fill with water and – if required – with a washer 
antifreeze, according to manufacturer's recom-
mendations.
In order to maintain the mixture ratio, mix 
the washer fluid before filling.<
Capacity
Sedan: 
Approx. 3.2 US quarts/3 liters, with headlamp 
washer system
* approx. 5.3 US quarts/5 liters.
Sports Wagon: approx. 5.3 US quarts/5 liters.
Cruise control*
The concept
The cruise control is available for use at speeds 
of approx. 20 mph/30 km/h and higher. The 
vehicle stores and maintains the speed that you 
set using the lever mounted on the steering col-
umn.  To maintain the specified speed, the sys-
tem brakes if the engine braking effect is not 
sufficient on a downhill grade. Speed can drop 
on uphill grades if the engine output is insuffi-
cient.
Do not use the cruise control under driv-
ing conditions that do not permit a con-
stant speed, e.g., when driving on winding 
roads, in heavy traffic or in poor road conditions 
such as snow, rain, ice, lose road surface, and 
poor visibility. Otherwise you could loose con-
trol of the vehicle and cause an accident.<
One lever for all functions
1Maintaining, storing and increasing speed
2Maintaining speed, storing speed, and 
decelerating
3Interrupting and deactivating system
4Resuming stored speed
Maintaining, storing and increasing 
speed
Press lever to resistance point, arrow 1: 
The speed currently being driven is maintained 
and stored. The display1 in the speedometer, 
see below, indicates this regulated speed. 
Every time you press the lever, the vehicle's 
speed increases by roughly 1 mph/1 km/h.
Press lever to resistance point for a longer time: 
The vehicle accelerates without pressure on  

Driving
66 the accelerator pedal. The system maintains 
and stores your current speed as soon as you 
release the lever.
Press the lever beyond the resistance point: 
The speed is increased to the next fives posi-
tion in the mph display or the next tens position 
in the km/h display.
Press and hold the lever beyond the resistance 
point: 
The vehicle accelerates more quickly.
Maintaining speed, storing speed, and 
decelerating
Pull the lever, arrow2: 
Functions are the same as1; the speed is 
reduced.
Interrupting system
Press the lever up or down, arrow3: The 
display1 in the speedometer changes color.
In addition, the system is interrupted:
>when you apply the brakes, even with the 
parking brake
>when you shift very slowly, when you shift 
the manual transmission into idling mode, 
or when you shift the automatic transmis-
sion into the N position
>when DTC is activated or DSC is deacti-
vated
>when the DSC comes on
Resuming stored speed
Press button4: 
The stored speed is resumed and maintained.
Deactivating system
>Press the lever up or down twice, arrow3
>Switch off the ignition
The speed stored in the memory is deleted.
Displays in instrument cluster
1Stored speed
2Selected speed is displayed briefly
Active cruise control*
With active cruise control you can select a 
desired speed which is then automatically 
maintained when driving on open roadways and 
is varied to maintain a selected distance setting 
to slower moving vehicles ahead.
Active cruise control represents a technological 
advance over the familiar cruise control and is a 
welcome relief from the constant adjustment of 
speed that can accompany driving in traffic on 
freeways or other high-speed thoroughfares. 
Especially on longer trips and in traffic conges-
tion, the system can reduce fatigue and tension, 
while increasing your enjoyment of driving. 
Please use it safely and responsibly.
In addition to holding a steady cruising speed, if 
you encounter slower vehicles ahead, active 
cruise control will, within limits, adjust your 
vehicle's speed automatically so that you can 
flow with the traffic without having to make con-
stant adjustments. If, for example, while cruis-
ing at the selected speed, you begin to 
approach a slower vehicle ahead of you in the 
same lane, the system will reduce your vehicle's 
speed to the same as that of the vehicle ahead 
to maintain your selected distance setting. You 
can vary the following distance, which will vary 
with speed. Based on your selected distance 
setting, the system automatically decreases the 
throttle setting and lightly applies the brakes if 
necessary. In addition, if the vehicle ahead of 
you slows to a complete stop, the system can  

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follow this action within the given scope and 
can also accelerate from a complete stop if the 
vehicle ahead of you drives off again shortly 
thereafter. During braking, your vehicle brake 
lamps will automatically illuminate to alert a fol-
lowing driver to take action. In addition, it may 
be necessary for your vehicle to downshift the 
automatic transmission to maintain the dis-
tance setting selected. As soon as the road in 
front of you has no moving vehicles, the system 
will accelerate to your desired speed. This set 
speed is also maintained on downhill grades, 
however the vehicle speed can drop below the 
set speed when driving uphill if the engine out-
put is not sufficient.
Active cruise control cannot detect stop 
signs, red lights, or any object that is 
stopped or is blocking the road.
Active cruise control is not and must not be 
used as a collision avoidance/warning system.
Since this active cruise control system is a new 
technology and operates differently from con-
ventional cruise control systems which you may 
be accustomed to, it is necessary that you read 
all of the pages relating to this system before 
use. Carefully read and observe the information 
on the system limitations beginning on page71 
to obtain a good command of the system and its 
range of applications.<
Brake pedal feel
When the system brakes and you also depress 
the brake pedal, a somewhat different braking 
feel results.
Professional* navigation system
If a navigation DVD is in the drive, refer to 
page132, within limits the system adjusts the 
accelerating and braking behavior of the vehicle 
to the road you are driving on.
To ensure that the system is informed of 
the current course of the road, always use 
the latest navigation DVD if possible.<
When the vehicle position is unknown, e. g. 
when you leave the map area, this influence of 
the navigation system is not available.
Applications
Please try the system first during sparse traffic 
and clear road conditions so that you can get 
used to the system. After you have experience 
and understand the system, only then use it 
during normal traffic.
As with conventional cruise control systems, 
active cruise control in no way reduces or sub-
stitutes for the driver's own personal experi-
ence, responsibility, alertness and awareness in 
adjusting speed, braking or otherwise control-
ling the vehicle. The driver should decide when 
to use the system on the basis of road, traffic, 
visibility, and weather conditions. Active cruise 
control is intended for use on highway-type 
roadways where traffic is moving relatively 
smoothly as well as in slow-moving traffic. Do 
not use the system in city driving; in complex 
driving situations; heavy traffic such as during 
rush hour; on curvy, winding roads, slippery 
roads or roads with sharp curves such as high-
way off-ramps; during inclement weather such 
as snow, strong rain or fog; or when entering 
interchanges, service/parking areas or toll 
booths. It is also important to regulate your 
vehicle's speed and distance setting within 
applicable legal limits. Always be ready to take 
action or apply the brakes if necessary, espe-
cially when the system is actively following a 
vehicle in front of you. Otherwise, driving condi-
tions can result which lead to a violation of the 
law or elevated risk of an accident.
The minimum initial activation speed is 20 mph/ 
30 km/h, and the maximum speed is 110 mph/
180 km/h. However, you can also activate the 
system while stopped, refer to While stopped, 
page69. 

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Use good judgment to select the appro-
priate following distance, given road con-
ditions, traffic, applicable laws and state driving 
recommendations for safe following distance. 
Otherwise, a violation of the law or risk of an 
accident could result.<
Interrupting cruise control
Press the lever upward or downward, and with 
the vehicle stopped also depress the brake 
pedal. The marking in the speedometer 
changes color and the distance indicator goes 
out.
In addition, the system is automatically inter-
rupted:
>when you apply the vehicle brakes
>when you shift the transmission
>when DTC is activated or DSC is deacti-
vated
>when DSC comes on
>when you apply the parking brake
>when you release the safety belt and open 
the driver's door with the vehicle stopped
>when the system does not recognize any 
objects for an extended period of time, e. g. 
on infrequently traveled roads without a 
shoulder or guard rails, or if the radar sensor 
is covered with dirt, refer to page70
If the system is interrupted, then it is nec-
essary for the driver to actively intervene 
by braking and steering. Otherwise, there is a 
risk of an accident.<
Resuming stored desired speed and 
distance
While driving
Press button4.
The displays appear in the instrument cluster.
While stopped
Before leaving the vehicle with the engine 
running, engage position P of the auto-
matic transmission and apply the parking brake. 
Otherwise the vehicle can roll.<
If a detected vehicle in front of you brakes to a 
complete stop and your vehicle has also been 
braked to a complete stop by the system:
>If the vehicle in front of you drives off while 
the marking1 for the desired speed in the 
speedometer is green, your vehicle will 
accelerate without you having to do any-
thing.
>If the vehicle in front of you drives off while 
the marking1 is orange, you briefly depress 
the accelerator pedal or press button4. 
Rolling bars in the distance indicator3 
mean that the vehicle in front of you has 
driven off.
If you are stopped behind a vehicle with the 
brake pedal depressed and the system is inter-
rupted or deactivated:
1.Press button4 to activate a stored desired 
speed or select a desired speed with the 
lever, arrow1 or arrow2.
2.Release the brake pedal.
3.If the vehicle in front of you drives off, briefly 
depress the accelerator pedal or press 
button4.
Deactivating system
>Press the lever upward or downward twice 
while driving.
>When stopped, do the same with the brake 
pedal depressed.
>Switch off the ignition.
The displays turn off, and the stored desired 
speed and distance are deleted. 

Driving
70
Displays in instrument cluster
1Stored desired speed
>Green: the system is active.
>Orange: the system is interrupted.
2Lights up yellow: vehicle detected ahead
Display also used for warnings, please read 
all information on warnings
3Selected distance to vehicle ahead
The indicator lights up as soon as the sys-
tem is activated
The bars roll: the vehicle in front of you has 
driven off
4Brief display of stored desired speed
If the display --- mph/--- km/h appears 
briefly, the conditions necessary for oper-
ation may currently not be met.<
Warning lamps
The indicator2 continuously 
flashes yellow.
The prerequisites for operating the 
system are no longer met as a 
result of ABS or DSC interven-
tions. The system brakes until you actively take 
over.
The indicator2 flashes red; a sig-
nal sounds.
The system indicates that you 
must brake and/or maneuver the 
vehicle yourself. The system can-
not automatically restore the distance to the 
vehicle driving ahead. 
However, this display cannot relieve the driver of the responsibility for adjusting the desired 
speed and driving style to the traffic conditions.
Radar sensors
1Long-range sensor
2Location of the short-range sensors behind 
the bumper
3Location of the short-range sensors behind 
the bumper with the M Sport Package
*
Heavy rain and also dirt, snow or ice can limit 
the detection of vehicles ahead. If needed, 
clean the radar sensor under the front bumper 
as well as the bumper area covering the short 
range sensors. When doing so, be particularly 
careful in removing layers of snow and ice.
Do not apply adhesive labels, etc., in the area of 
the short-range sensors.
If the sensor is not aligned properly, e. g. due to 
damage, the active cruise control cannot be 
activated.
Malfunction
The system cannot be activated if the sensor is 
incorrectly aligned. 
A message is displayed if the system fails.
For US owners only
The transmitter and receiver units comply with 
part 15 of the FCC/Federal Communication 
Commission regulations. Operation is gov-
erned by the following:
FCC ID:
>’’NF3 ACC2SCU 003YK04001 0000
>BV8SRS24
Compliance statement:
This device complies with part 15 of the FCC  

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Rules. Operation is subject to the following two 
conditions:
>This device must not cause harmful inter-
ference, and>this device must accept any interference 
received, including interference that may 
cause undesired operation.
Any unauthorized modifications or 
changes to these devices could void the 
user’s authority to operate this equipment.<
System limitations
As with conventional cruise control sys-
tems, active cruise control in no way 
diminishes or substitutes for the driver's own 
personal responsibility, alertness and aware-
ness in adjusting speed, braking or otherwise 
controlling the vehicle. The driver should 
decide when to use the system on the basis of 
road, traffic, visibility, and weather conditions. 
Active cruise control is intended for use on 
highway-type roadways where traffic is moving 
relatively smoothly. Do not use this system in 
city driving; in complex driving situations; on 
curvy, winding roads, slippery roads or roads 
with sharp curves such as highway off-ramps; 
during inclement weather such as snow, strong 
rain or fog; or when entering interchanges, ser-
vice/parking areas or toll booths. It is also 
important to regulate your vehicle's speed and 
distance setting within applicable legal limits. 
Always be ready to take action or apply the 
brakes if necessary, especially when the sys-
tem is actively following a vehicle in front of 
you.<
Always remember that the range and abil-
ity of the system do have physical limita-
tions. For example, the system may not detect 
vehicles driving ahead if they suddenly brake 
heavily in stop-and-go traffic during accelera-
tion. The system will not apply the brakes or 
slow your vehicle when a very slow-moving vehicle, stopped vehicle or stationary object is 
in the lane ahead of you, for example when 
approaching a traffic light or parked vehicle or 
when a vehicle is stalled in your lane. Also, the 
system does not react to oncoming traffic, 
pedestrians or other types of potential traffic 
such as a rider on horseback. It is also possible 
that the system may not detect smaller moving 
objects such as motorcycles or bicycles. Be 
especially alert when encountering any of these 
situations as the system will neither automati-
cally brake, nor provide a warning to you. Also, 
be aware that every decrease in the distance 
setting allows your vehicle to come closer to a 
vehicle in front of you and requires a heightened 
amount of alertness.<
The system cannot allow the vehicle to drive off 
automatically in situations that make driving off 
considerably more difficult, e.g., on steep uphill 
grades, with a heavy trailer or before raised 
areas in the road.
Near radio astronomy stations, the system 
radar is deactivated at speeds under 20 mph/
30 km/h due to legal regulations.
Be certain to interrupt the system when 
you pull into an exit lane for a highway 
offramp.<
Also, vehicles traveling in a staggered manner 
on a highway may cause a delay in the system's  

Driving
72 reaction to a vehicle in front of you or may cause 
the system to react to a vehicle that is actually in 
the lane next to yours. Always be ready to take 
action or apply the brakes if necessary.
In addition, the system is interrupted 
whenever the driver applies the vehicle 
brakes, shifts the transmission from drive/D to 
neutral/N, or deactivates DSC. After any inter-
ruption, the system will no longer automatically 
activate the vehicle brakes, which means the 
driver must intervene and resume manual brak-
ing. You should then reactivate the system only 
when you are fully aware of the prior speed and 
distance settings.<
Active cruise control may brake when you 
reduce the stored desired speed; however, the 
driver must constantly monitor traffic and inter-
vene if necessary.
When you switch off the engine or ignition, 
active cruise control is fully switched off, too, 
and any settings you have selected are can-
celed.
Unexpected lane change
If a vehicle in front of you is behind a stopped 
vehicle and unexpectedly changes lanes, you 
must react yourself, as the system does not 
react to stopped vehicles.
Swerving vehicles
When a vehicle swerves out of adjacent lanes 
into your lane, the system does not detect the 
vehicle until it is completely in your lane.
When a vehicle ahead suddenly swerves 
into your lane, the system may not be able 
to restore the selected distance automatically. 
This also applies to great differences in speed 
between your vehicle and vehicles ahead, e. g. 
when quickly approaching a truck. Once the 
system has established that a vehicle is indeed 
in front of you, it will indicate that you must 
brake and/or maneuver the vehicle yourself. 
Take action yourself, otherwise there is a risk of 
an accident.<
Behavior in curves
If the selected desired speed for a curve is too 
high, the system reduces the speed within a 
curve. However, it cannot detect curves in 
advance. Therefore, select a suitable speed at 
the start of a curve.
Because of the limited range of the system, it is 
possible that in curves or on the peaks and val-
leys of hilly roads, a vehicle ahead may be rec-
ognized late, or not at all. Therefore, it is up to 
the driver to select a speed that is prudent in 
view of the curves and terrain of the roadway.