
Maintaining, storing, and changing the
speed
Information WARNING
The desired speed can be incorrectly ad‐
justed or called up by mistake. There is risk of
an accident. Adjust the desired speed to the traffic conditions. Watch traffic closely and ac‐
tively interfere in the respective situations. ◀
WARNING
Risk of accident due to too high speed
differences to other vehicles, e.g. in the follow‐
ing situations:▷When fast approaching a slowly moving ve‐
hicle.▷Suddenly swerving vehicle onto the own
lane.▷When fast approaching standing vehicles.
There is risk of injuries or danger to life. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
Maintaining/storing the speed Press button.
Or:
Press
or button in the interrupted state.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
The speed is displayed on the symbol.
DSC Dynamic Stability Control will be
switched on if needed.
Changing the speed
or button: press until the desired speed
is set.
If active, the displayed speed is stored and the
vehicle reaches the stored speed when the
road is clear.
▷ or button: each time it is pressed to
the point of resistance, the desired speed
increases or decreases by approx.
1 mph/1 km/h.▷ or button: each time it is pressed
past the point of resistance, the desired
speed increases or decreases by a maxi‐
mum of 5 mph/10 km/h.
or button: hold down to repeat the cor‐
responding action.
Distance WARNING
The system does not relieve from the per‐
sonal responsibility. Due to the system limits,
braking can be late. There is risk of accidents or
risk of property damage. Be aware to the traffic
situation at all times. Adjust the distance to the
traffic and weather conditions and maintain the
prescribed safety distance, possibly by brak‐
ing. ◀
Reduce distance Press button repeatedly until the de‐
sired distance is set.
The set distance is briefly displayed in
the left part of the instrument cluster.
Increase distance Press button repeatedly until the de‐
sired distance is set.
The set distance is briefly displayed in
the left part of the instrument cluster.
Continue cruise control
While driving Press button with the system inter‐
rupted. Cruise control is continued with
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the saved values. The selected distance is
briefly displayed in the info display.
In the following cases, the stored speed value is
deleted and cannot be called up again:▷When the system is switched off.▷When the ignition is switched off.
Changing between cruise control with/
without distance control
WARNING
The system does not react to traffic driv‐
ing ahead of you, but instead maintains the stored speed. There is risk of accidents or risk of
property damage. Adjust the desired speed to
the traffic conditions and brake as needed. ◀
Changing to Active Cruise Control without dis‐
tance control:
Press and hold this button, or
Press and hold this button.
The indicator lamp in the instrument
cluster lights up.
To switch back to cruise control, press one of
the buttons briefly.
After switching, a Check Control message is dis‐
played.
Displays in the instrument cluster
Desired speed In addition to the indicator lamp, the
desired speed is displayed in the central
information display.
▷The indicator lights up green: the system is
active.▷The indicator lights up orange: the system
has been interrupted.▷No display: system is switched off.If no speed is indicated, it is possible that the
conditions necessary for operation are not cur‐
rently fulfilled.
Distance to vehicle ahead of you
Selected distance from the vehicle driving
ahead is briefly displayed in the left hand por‐
tion of the info display.Distance displayDistance 1Distance 2Distance 3Distance 4
This value is set automatically after
the system is switched on.
Indicator/warning lights
Symbol lights up orange:
A vehicle has been detected ahead of
you.
Symbol flashes orange:
The conditions are not adequate for the
system to work.
The system was deactivated but applies the
brakes until you actively resume control by
pressing on the brake pedal or accelerator
pedal.
Symbol flashes red and a signal sounds:
You are requested to intervene by brak‐
ing or make an evasive maneuver.
The system has been interrupted or dis‐
tance control is temporarily suppressed
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because the accelerator pedal is being pressed;
a vehicle was not detected.
Distance control is temporarily sup‐
pressed because the accelerator pedal
is being pressed; a vehicle was de‐
tected.
Displays in the Head-up Display The information from Active Cruise Control can
also be displayed in the Head-up Display.
Adjusting the Head-up Display, refer to
page 89.
System limits
Speed range The system is best used on well-constructed
roads. The system is functional at speeds be‐
ginning at approx. 20 mph/30 km/h.
The max. speed that can be set is
85 mph/140 km/h.
Comply with the legal speed limit and safety
distance in every situation when using the sys‐
tem.
Detection range
The detection capacity of the system and the
automatic braking capacity are limited.
Two-wheeled vehicles for instance might not
be detected.
WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. Based on the limits of the system,
it cannot independently react to all traffic situa‐
tions. There is risk of an accident. Adjust the
driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
Deceleration The system also does not decelerate in the fol‐
lowing situations:▷In case of pedestrians, cyclists or similar
slow road users.▷For red traffic lights.▷For cross traffic.▷For oncoming traffic.▷Unlit vehicles or vehicles with nonworking
lighting at night.
Swerving vehicles
A vehicle driving in front of you is not detected
until it is completely within the same lane as
your vehicle.
If a vehicle driving ahead of you suddenly
swerves into your lane, the system may not be
able to automatically restore the selected dis‐
tance. This also applies to major speed differ‐
ences to vehicles driving ahead of you, e.g.,
when rapidly approaching a truck. When a ve‐
hicle driving ahead of you is reliably detected,
the system requests that the driver intervene
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by braking and carrying out evasive maneu‐
vers, if needed.
WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. Based on the limits of the system,
it cannot independently react to all traffic situa‐
tions. There is risk of an accident. Adjust the
driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
Cornering
If the desired speed is too high for a curve, the
speed is reduced slightly, although curves can‐
not be anticipated in advance. Therefore, drive
into a curve at an appropriate speed.
In tight curves the system offers only restricted
detection where a vehicle ahead of you might
be detected late or not at all.
When you approach a curve the system may
briefly report vehicles in the next lane due to
the bend of the curve. If the system decelerates
you may compensate it by briefly accelerating.
After releasing the gas pedal the system is reac‐
tivated and controls speed independently.
Weather
In the event of unfavorable weather and light conditions, e. g. if there is rain, snowfall, slush,
fog or glare, this may result in poorer recogni‐
tion of vehicles as well as short-term interrup‐
tions for vehicles that are already detected.
Drive attentively, and react to the current traffic
situation. If necessary, intervene actively, e.g.
by braking, steering or evading.
Malfunction
A Check Control message is displayed if the sys‐
tem fails or was automatically deactivated.
The system may not be fully functional in the
following situations:▷When an object was not correctly detected.▷In heavy fog, rain, sprayed water or snow‐
fall.▷In tight curves.▷If the field of view of the camera or the
front windshield are dirty or covered.▷When driving toward bright lights.▷Up to 20 seconds after the start of the en‐
gine, via the Start/Stop button.▷During calibration of the camera immedi‐
ately after vehicle delivery.
Cruise control
The concept
The system is functional at speeds beginning at
approx. 20 mph/30 km/h.
It maintains the speed that was set using the
control elements on the steering wheel.
The system brakes on downhill gradients if en‐
gine braking is insufficient.
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InformationWARNING
The use of the system can lead to an in‐
creased risk of accidents in the following situa‐
tions:▷On winding roads.▷In heavy traffic.▷On slippery roads, in fog, snow or rain, or
on a loose road surface.
There is risk of accidents or risk of property
damage. Only use the system if driving at con‐
stant speed is possible. ◀
General information Depending on the driving program, refer to
page 117, set, the characteristics of the cruise
control in particular areas can change.
Overview
Buttons on the steering wheel
Press buttonFunctionCruise control on/offStore speedPausing cruise control
Continue cruise control with the
last settingIncreasing, maintaining or storing
the speedReducing, maintaining or storing
the speed
Controls
Switching on Press button on the steering wheel.
The indicator lamp in the instrument
cluster lights up.
The current speed is adopted as the de‐
sired speed and is displayed with the symbol in the instrument cluster.
Cruise control is active and maintains the set
speed.
DSC Dynamic Stability Control will be switched
on if needed.
Switch off WARNING
The system does not relieve from the per‐
sonal responsibility to correctly assess the traf‐
fic situation. Based on the limits of the system,
it cannot independently react to all traffic situa‐
tions. There is risk of an accident. Adjust the
driving style to the traffic conditions. Watch
traffic closely and actively interfere in the re‐
spective situations. ◀
Press button on the steering wheel.
The displays go out. The stored desired speed is
deleted.
Interrupting When active, press the button on the
steering wheel.
The system is automatically interrupted in the
following situations:▷When the brakes are applied.▷If the clutch pedal is depressed for a few
seconds or released while a gear is not en‐
gaged.▷If the gear engaged is too high for the cur‐
rent speed.▷If selector lever position N is set.▷If DTC Dynamic Traction Control is activated
or DSC is deactivated.▷When DSC is actively controlling stability.Seite 125Driving comfortCONTROLS125
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Maintaining, storing, and changing the
speed
Information WARNING
The desired speed can be incorrectly ad‐
justed or called up by mistake. There is risk of
an accident. Adjust the desired speed to the
traffic conditions. Watch traffic closely and ac‐
tively interfere in the respective situations. ◀
Maintaining/storing the speed Press button.
Or
or button: press while the system is in‐
terrupted.
When the system is switched on, the current
speed is maintained and stored as the desired
speed.
This is displayed in the instrument cluster.
DSC Dynamic Stability Control will be switched
on if needed.
Changing the speed
or button: press repeatedly until the de‐
sired speed is set.
If active, the displayed speed is stored and the
vehicle reaches the stored speed when the
road is clear.
▷ or button: each time it is pressed to
the point of resistance, the desired speed
increases or decreases by approx.
1 mph/1 km/h.▷ or button: each time it is pressed
past the point of resistance, the desired
speed increases or decreases by a maxi‐
mum of 5 mph/10 km/h.
The maximum speed that can be set de‐
pends on the vehicle.▷ or button: pressing it to the resist‐
ance point and holding it there acceleratesor decelerates the vehicle without requiring
pressure on the accelerator pedal. After the
button is released, the vehicle maintains its
final speed. Pressing the switch beyond the
resistance point causes the vehicle to accel‐
erate more rapidly.
Continue cruise control
Press button on the steering wheel.
The stored speed is reached and maintained.
Displays in the instrument cluster
Indicator lamp Depending on how the vehicle is equip‐
ped, the indicator lamp in the instru‐
ment cluster indicates whether the sys‐
tem is switched on.
Desired speed The desired speed is displayed together
with the symbol.
▷The indicator lights up green: the
system is active.▷The indicator lights up orange: the system
has been interrupted.▷No display: system is switched off.
If no speed is indicated, it is possible that the
conditions necessary for operation are not cur‐
rently fulfilled.
PDC Park Distance Con‐
trol
The concept
PDC supports you when parking. Slowly ap‐
proaching an object behind or, with the appro‐
priate equipment, also in front of your vehicle is
signaled by:
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SymbolMeasureManual transmission: follow shifting
instructions.Manual transmission: engage neutral
for engine stop.
Indications on the Control Display
MINIMALISM
Information on fuel consumption and technol‐
ogy can be displayed while driving.
1. "Vehicle info"2."MINIMALISM"
Displaying MINIMALISM info
The current efficiency can be displayed.
"MINIMALISM info"
The following systems are displayed:
▷Auto Start/Stop function.▷Energy recovery.▷Climate control output.▷Coasting.
Displaying GREEN mode tips
"GREEN tips"
Driving instruction and an additional symbol
are displayed.
Settings are stored for the profile currently
used.
Coasting
The concept The system helps to conserve fuel.
To do this, under certain conditions the engine
is automatically decoupled from the transmis‐ sion when selector lever position D is set. The
vehicle continues traveling with the engine
idling to reduce fuel consumption. Selector
lever position D remains engaged.
This driving condition is referred to as coasting.
As soon as the brake or accelerator pedal is de‐
pressed, the engine is automatically coupled to
the transmission again.
Information
Coasting is a component of the GREEN driving
mode, refer to page 165.
Coasting is automatically activated when
GREEN mode is called via the Driving Dynamics
Control, refer to page 117.
The function is available in a certain speed
range.
A proactively driving style helps the driver to
use the function as often as possible and sup‐
ports the fuel-conserving effect of coasting.
Safety mode
The function is not available under one of the
following conditions.▷DSC OFF or TRACTION activated.▷Driving in the dynamic limit range and on
steep uphill or downhill grades.▷Battery charge status temporarily too low
or vehicle electrical system drawing exces‐
sive current.▷Cruise control activated.
Functional requirements
In GREEN mode, this function is available in a
speed range from approximately 30 mph, ap‐
prox. 50 km/h to 100 mph, approx. 160 km/h,
if the following conditions are met:
▷Accelerator pedal and brake pedal are not
operated.▷The selector lever is in selector lever posi‐
tion D.▷Engine and transmission are at operating
temperature.Seite 168DRIVING TIPSSaving fuel168
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Everything from A to ZIndexA
ABS, Antilock Brake Sys‐ tem 115
Acceleration Assistant, refer to Launch Control 74
ACC, see camera-based cruise control 119
Activated-charcoal filter 141
Active Cruise Control, see camera-based cruise con‐
trol 119
Additives, oil 197
Adjustments, seats/head re‐ straints 49
Adjustments, steering wheel 57
After washing vehicle 221
Airbags 99
Airbags, indicator/warning light 100
Air circulation, refer to Recir‐ culated-air mode 140
Air circulation, see Recircu‐ lated-air mode 137
Air conditioner 136
Air, dehumidifying, see Cool‐ ing function 137, 139
Air distribution, manual 137, 140
Air flow, air conditioner 137
Air flow, automatic climate control 140
Air pressure, tires 178
Air vents, refer to Ventila‐ tion 141
Alarm system 43
Alarm triggering 43
Alarm, unintentional 44
All around the center con‐ sole 16 All around the roofliner 17
All around the steering wheel 14
All-season tires, see Winter tires 187
Alternating-code hand-held transmitter 144
Alternative oil types 197
Antifreeze, washer fluid 70
Antilock Brake System, ABS 115
Anti-slip control, see DSC 115
Approved axle load 227
Arrival time 85
Ash tray 147
Assistance when driving off 118
Assist system, see Intelligent Safety 108
AUTO intensity 139
Automatic car wash 220
Automatic climate con‐ trol 138
Automatic Curb Monitor 55
Automatic deactivation, Front- seat passenger airbags 101
Automatic headlight con‐ trol 95
Automatic locking 43
Automatic recirculated-air control 140
Automatic transmission with Steptronic 71
AUTO program, automatic cli‐ mate control 139
AUTO program, intensity 139
Auto Start/Stop function 64
Average fuel consumption 85
Average speed 85
Axle loads, weights 227 B
Backrest curvature, refer to Lumbar support 50
Band-aids, see First-aid kit 214
Bar for tow-starting/ towing 217
Battery replacement, vehicle battery 212
Battery, vehicle 212
Belts, safety belts 51
Beverage holder, cu‐ pholder 152
Bonus range, GREEN mode 167
Bottle holder, see Cu‐ pholder 152
Brake assistant 115
Brake discs, break-in 158
Brake pads, break-in 158
Braking, hints 159
Breakdown assistance 214
Break-in 158
Brightness of Control Dis‐ play 88
Bug light 204
Bulb replacement 203
Bulb replacement, front 204
Bulb replacement, rear 206
Bulb replacement, side 209
Bulbs and lights 203
Button, Start/Stop 62
Bypassing, see Jump-start‐ ing 214
C
California Proposition 65 Warning 8 Seite 236REFERENCEEverything from A to Z236
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