
Driving
62 >if you remove the remote control from the 
ignition lock
Handbrake
The handbrake is primarily intended to prevent 
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 
handbrake 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 handbrake 
while the vehicle is in motion, do not pull it too 
firmly. In doing so, continuously press the but-
ton of the handbrake lever. Otherwise, too firm 
an application of the handbrake 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 hand-
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 hand-
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 
page63.
Transmission positions
P R N D M/S + –
Displays in instrument cluster
P R N D DS S1* to S6* M1 to M6
The transmission position is indicated, and in 
the manual mode, the gear currently engaged. 

Driving
68
Windshield washer nozzles
Both windshield washer nozzles are automati-
cally heated with the engine running or the igni-
tion switched on.
Sports Wagon: 
Rear window wiper
1Intermittent mode. When reverse gear is 
engaged, continuous operation is switched 
on automatically
2Cleaning the rear window
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. 
Always keep it well away from sparks and 
open flames, and store it in tightly closed con-
tainers well out of the reach of children. 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.
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. 3.2USquarts/3liters, with headlamp 
washer system
* approx. 5.3USquarts/5liters.
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 roa d co nditions 
such as snow, rain, ice, and loose road surface. 
Otherwise you could loose control of the vehi-
cle and cause an accident.< 

Driving
70 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 
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, 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 page74 
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 
page140, 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 con-
gestion. Do not use the system in city driving; in 
complex driving situations; heavy traffic such as 
during rush hour; on curvy, winding roads, slip-
pery roads or roads with sharp curves such as 
highway off-ramps; during inclement weather 
such as snow, strong rain or fog; or when enter-
ing 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- 

Driving
72 The selected distance is displayed in the instru-
ment cluster.
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 handbrake
>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 page73
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 handbrake. 
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. Distance 1, closest
Distance 2
Distance 3
Distance 4, furthest
This distance is always set when 
you activate the system. 

Controls
 73Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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.
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 speedIf 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, e.g. 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 sports 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. 

Driving
74 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.
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, vehicles driving ahead, 
which suddenly brake heavily in stop-and-go 
traffic during acceleration, may no longer be 
detected. It will not apply the brakes or deceler-
ate your vehicle when there is a very slow-mov-
ing vehicle, stopped vehicle or stationary object 
ahead of you, for example when approaching a 
traffic light or a 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 a 
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 automatically 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 off-
ramp.<
Also, vehicles traveling in a staggered manner 
on a highway may cause a delay in the system’s 
reaction to a vehicle in front of you or may cause 
the system to react to a vehicle actually in the 
lane next to you. 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  

Controls
 75Reference
At a glance
Driving tips
Communications
Navigation
Entertainment
Mobility
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.
In approaching a curve, it is possible that active 
cruise control might react briefly to a vehicle in 
the adjacent lane. In addition, the system can 
sense if your vehicle is in a curve and may not 
accelerate. If your vehicle decelerates in either  

Driving
76 case, you can choose to overcome the deceler-
ation by briefly pressing the accelerator pedal.
Driver interventions and your 
responsibility
Any time the driver presses down on the 
accelerator pedal, any automatic braking 
action by the system is interrupted and the dis-
tance indicator goes out until the pedal is fully 
released. As soon as you release the accelera-
tor pedal fully the system again controls your 
cruising speed and distance setting. While driv-
ing with the system activated, resting your foot 
on the accelerator pedal will cause the system 
not to brake even if necessary. Be certain that 
floormats or other objects on the vehicle floor 
do not interfere with movement of the accelera-
tor pedal.<
While active cruise control is capable of 
braking your vehicle automatically when 
you approach a slower vehicle ahead, it is 
important to be aware that the ability of the sys-
tem to apply the brakes is also limited, e. g. 
when you reduce your desired speed sharply. It 
uses only a portion of braking system capacity 
and does not utilize the full capacity of the vehi-
cle braking system. Therefore, the system can-
not decrease your speed due to large differ-
ences in speed between your vehicle and the 
vehicle ahead. Example: when you approach a 
vehicle traveling at a much lower speed than 
your own speed such as approaching a toll 
booth or when a much slower vehicle cuts in 
front of you at close range.<