Narrow vehicles or vehicles travelling side by side
Narrow vehicles or vehicles travelling side by side are not detected by the ra-
dar sensor until they are within the sensor's range » Fig. 205 -
.
If necessary, slow down the car by applying the brake.
Other vehicles changing lanes
Vehicles that change onto the lane with a small proximity » Fig. 206 -
do not
have to be detected by the radar sensor in time. The result may be a delayed
ACC response.
If necessary, slow down the car by applying the brake.
Stationary vehicles
The ACC does not detect stationary objects! When a vehicle detected by the
ACC turns or sheers off and there is a stationary vehicle in front of this vehicle,
» Fig. 206 -
the ACC does not respond to the stationary vehicle.
In such cases, take over the steering and stop the vehicle by applying the foot
brake.
When overtaking
When your vehicle is being controlled (the speed is lower than that which is
stored) and the indicator is activated, the ACC interprets this situation as
meaning that the driver intends to overtake. The ACC automatically acceler-
ates the vehicle, thereby reducing the proximity to a vehicle ahead.
If the vehicle changes to the fast lane and no vehicle is detected ahead, the
ACC accelerates until the set speed is reached and then keeps it constant.
Acceleration can be cancelled at any time by touch on the brake pedal or
pressing the button on the lever
» Fig. 204 on page 165 .
Vehicles with special load or special body parts
Other vehicles with a load or with body parts protruding from the sides, back
or top of the vehicle contour may not be detected by the ACC.
Control should therefore be disabled whenever you are driving behind or over-
taking such a vehicle.
Towing a trailer
When towing, or in when another accessory is connected to the trailer socket
the ACC control is set with a lower rate. The manner of driving should there-
fore be adapted to this limitation.Information messages
Read and observe
on page 163 first.
The warning symbols are shown in the instrument cluster display.
ACC: no sensor view!
The sensor cover or the sensor is covered or dirty.
Stop the car, switch off the engine and clean the sensor cover or remove the
obstacle » Fig. 174 on page 143 .
If this message appears in winter, the cause can be snow covering the sensor.
The ACC is functional again after the snow melts away from the sensor.
If the message appears again after starting the engine, the position of the lev- er should be
» Fig. 204 on page 165 adjusted.
ACC not available.
The ACC is not available for an unknown reason.
Stop the vehicle, switch off the engine and then start it again. If the ACC is still
not available, push the lever into position . Seek help from a specialist ga-
rage.
Error: ACC
There is an ACC system error.
Push the lever into position / press. Seek help from a specialist garage.
Speed limit
Increase the speed accordingly and start control
» page 166.
Front Assist
Introduction
This chapter contains information on the following subjects:
Operation
169
Distance warning (dangerous distance)
169
Warning and automatic braking
169
Disable/enable
170
Information messages
171
168Driving
The Front Assist (hereinafter referred to as the system) warns you of the dan-
ger of a collision with a vehicle or another obstacle in front of the vehicle, and
tries to avoid a collision or mitigate its consequences by automatically applying
the brakes where necessary.
The area in front of the vehicle is monitored by a radar sensor » page 143.WARNING■
Please take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .■
The system does not respond to crossing or oncoming objects.
CAUTION
In case of failure of more than one brake light on the vehicle or on the electri-
cally connected trailer, the system becomes unavailable.
Operation
Read and observe
and on page 169 first.
The system support is provided in the following manner.▶ Alerts you about a dangerous proximity to the vehicle ahead.
▶ Warns you of an impending collision.
▶ Prepares the brakes for emergency braking prior to a detected danger.
▶ Assists with a brake action triggered by the driver.
▶ If the driver fails to respond to a detected danger, an automatic braking ac-
tion is performed.
The system can work only if the following basic conditions are met. The system is activated.
The TCS is activated » page 143, Braking and stabilisation systems .
The vehicle is moving forwards at a speed of more than approx. 5 km/h.
Note
The system can be impaired or may not be available, for example when driving
in “sharp ”curves or with an ESC engagement » page 144.Distance warning (dangerous distance)Fig. 207
Symbols in the instrument cluster: Note (dangerous
proximity)
Read and observe and on page 169 first.
The display of the distance warning is for vehicles with MAXI DOT display.
If a safe interval to the vehicle ahead falls below a minimum the display of the
instrument cluster shows the symbol
» Fig. 207 .
Immediately increase the proximity if the current traffic situation allows you
to do so!
The proximity at which the warning is displayed depends on the current speed.
The warning may occur when driving between about 60 km/h and 210 km/h.
Warning and automatic braking
Fig. 208
Symbols in the instrument cluster: Warning or emer-
gency braking at low speed
Read and observe and on page 169 first.
Emergency braking at low speed
In a driving speed range of about 5 km/h to about 30 km/h the automatic brak- ing action is not preceded by a warning. With an immediate impact hazard au-
tomatic braking is done with the breaking force increasing in stages.
169Assist systems
With automatic braking the symbol appears » Fig. 208 in the display.
Advance warning
If the system detects a risk of collision, the symbol
» Fig. 208 appears in the
display and you will hear an acoustic signal.
At the same time, the braking system is prepared for possible emergency brak- ing.
The pre-warning display can occur in the following situations.
▶ If there is a risk of collision with a moving obstacle in a driving speed range of
about 30 km/h to about 210 km/h.
▶ There is a risk of a collision with a stationary moving obstacle in a vehicle
speed range of approximately 30 km/h to about 85 km/h.
With a warning the brake pedal must be pressed or the moving obstacle is to
be avoided!
Acute alert
If the driver does not react to the advance warning, the system briefly applies
the brake automatically via an active brake intervention to draw attention to
the potential danger of a collision again.
Automatic Braking
If the driver fails to respond to the acute warning, the system starts to apply
the brakes automatically with increasing stopping power in several stages.
Brake assist
If the driver brakes inadequate with an impending collision, the system auto-
matically increases braking force.
The braking assistance only occurs as long as the brake pedal is being firmly
pressed down.
Note
■ If an automatic brake intervention is triggered by the system, the pressure in
the brake system increases and the brake pedal cannot be operated with the
normal pedal stroke.■
The automatic braking interventions can be cancelled by pressing the accel-
erator pedal or by steering intervention.
Disable/enableFig. 209
Buttons/dial: on the control lever / multifunction steering wheel
Read and observe
and on page 169 first.
The system is automatically activated each time the ignition is switched on. The system should only be disabled in exceptional cases »
.
On vehicles with the MAXI DOT display, the system can be activated / deactiva-
ted in the main menu in menu item
Assist systems
» page 45 .
Deactivation / activation in vehicles with segment display
Button
» Fig. 209ActionOperationAPress and hold at the top or press downShow Front Assist menu itemBPress brieflyConfirm entry (disable / enable)
Deactivation / activation in vehicles with multi-function steering wheel
Button /dial
» Fig. 209ActionOperation
CPress brieflyShow Front Assist menu itemDPress brieflyConfirm entry (disable / enable)
Disable / enable and setting in the Infotainment
In the Infotainment the entire system or the functions warning and distance warning can be disabled / enabled » Owner´s Manual Infotainment , chap-
ter CAR - Vehicle Settings .
170Driving
Information messagesRead and observe
on page 177 first.
The warning messages are available for both the assistant “blind spot moni-toring” and the Rear Traffic Alert and are displayed together in the instrument
cluster.
Rear Traffic Alert/ Blind Spot Monitor currently not avail.
The system is not available for an unknown reason.
Stop the vehicle, switch off the engine and then start it again.
If after engine start the message persists, then the help of a professional or- ganisation is required.
Error: Rear Traffic Alert/ Blind Spot Monitor
System error detected. Seek help from a specialist garage.
R. Traf. Alert/Blind Spt Mntr not avail. No sensor view.
The sensors are dirty or covered.
Stop the vehicle, stop the engine, clean the area in front of and around the
sensors or remove the obstructing item.
If after engine has restarted the message persists, then the help of a profes-
sional organisation is required.
Trailer: Rear Traf. Alert/Blind Spot Mntr not avail.
If the vehicle has a towing device, a trailer or any other accessory connected
that was done at the factors then the system is not available.
Traffic jam assistant
Introduction
This chapter contains information on the following subjects:
Operation
179
Operating conditions
179
The traffic jam assistant helps at speeds below 60 km / h to keep the vehicle within the lane while keeping the distance to the vehicle ahead.
The system is only available for vehicles with Automatic transmission.
WARNING■
Please take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .■
The driver must always have hands on the steering wheel and be ready to
take over steering of the vehicle himself (accelerate or brake).
Note
The system is designed primarily for use on motorways.
Operation
Read and observe
on page 179 first.
The traffic jam assistant is an extension of the systems Lane Assist » page 174
and ACC » page 163 and works by using the functions of these two systems.
For this reason, the chapters on System Lane Assist and ACC are to be read
carefully and the safety notes are to be observed.
Operating conditions
Read and observe
on page 179 first.
The system can work when the following basic conditions are present. Lane Assist with the adaptive tracking is enabled, the boundary lines on
both sides are recognized lane » page 174.
ACC is activated and the regulation » page 163 follows.
The vehicle is travelling less than about 60 km/h.
The system activation is automatic provided that the above conditions are met and a preceding vehicle is detected. The warning light
illuminates in the in-
strument cluster.
Assistant for emergencies
Introduction
This chapter contains information on the following subjects:
Operation
180
Operating conditions
180
179Assist systems
The assistant for emergencies (following known as system) detects inactivity
of the driver, which for example can be caused by a sudden loss of conscious-
ness. The system then performs measures as safely as possible to decelerate
the vehicle to a stop.
The system is only available for vehicles with Automatic transmission.WARNING■
Please take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .■
The system is intended for emergency situations when the driver is sud-
denly unable to take over the steering task. Therefore, never try to test out
the system - there is a risk of an accident!
Operation
Read and observe
on page 180 first.
The assistant for emergencies is an extension of the systems Lane Assist
» page 174 and ACC » page 163 and works by using the functions of these two
systems.
For this reason, the chapters on System Lane Assist and ACC are to be read
carefully and the safety notes are to be observed.
System intervention
If the system detects the driver's inactivity, it draws attention to this fact by a
beep and a message on the display of the instrument cluster. It keeps the ve-
hicle in its lane.
If the driver does not take over the steering even after repeated warning, the
system begins to automatically brake the vehicle. This is followed by continu-
ous braking. After the vehicle has come to a stop, automatic activation of the
parking brake takes place.
With automatic braking, the hazard warning lights are activated to warn other
road users.
Note
The automatic braking interventions can be cancelled by pressing the acceler-
ator pedal or by steering intervention.Operating conditions
Read and observe
on page 180 first.
The system can intervene when the following basic conditions are present. Lane Assist is activated and the boundary line is detected at least on one
side of the lane » page 174.
ACC is activated and the regulation » page 163 follows.
Traffic sign recognition
Introduction
This chapter contains information on the following subjects:
Function
181
Additional display
181
Information messages
182
The traffic sign recognition (following known as system) shows certain traffic
signs (e.g. speed limits) on the display of the instrument cluster and if necessa-
ry warns against excessive speeds.
WARNING■ Please take note of the general points relating to the use of assistance
systems » page 142, in section Introduction .■
Vertical traffic signs must always take precedence over the traffic signs
shown in the display. The driver is always responsible for correctly assess-
ing the traffic situation.
■
Traffic signs may not be recognised at all by the system, or may be recog-
nised incorrectly. As a result, the traffic signs may not be displayed at all, or
the wrong one may appear.
■
The speed limits shown in the road signs displayed refer to the country-
specific speed measurement units. For example, the display
may refer to
km/h or mph, i.e. specific to that country.
Note
The system is only available in some countries.180Driving
WARNINGSliding cargo can significantly adversely affect stability and driving safety -
risk of accident!
Trailer load
The permissible trailer load must not be exceeded under any circumstances.Permissible trailer load - SuperbEngineGearboxPermissible trailer load, braked (kg)Permissible trailer load, unbraked (kg)Gradients of up to 12 %Gradients of up to 8 % a)1.4 l/92 kW TSIMG16001800680
1.4 l/110 kW TSI ACT
MG16001900690MG 4x418002000750DSG160019007101.4 l/110 kW TSIMG16001900690DSG160019007001.8 l/132 kW TSIMG18002000730DSG180020007402.0 l/162 kW TSIDSG200020007502.0 l/206 kW TSIDSG 4x422002200750
1.6 l/88 kW TDI CR
MG15001800730MG (GreenLine)15001800740DSG15001800740
2.0 l/110 kW TDI CR
MG20002000740MG 4x422002200750DSG200020007502.0 l/130 kW TDI CRDSG20002000750
2.0 l/140 kW TDI CR
MG20002000750DSG20002100750DSG 4x422002200750a)
Only valid for some countries.
187Hitch and trailer
Permissible trailer load - Superb EstateEngineGearboxPermissible trailer load, braked (kg)Permissible trailer load, unbraked (kg)Gradients of up to 12 %Gradients of up to 8 %a)1.4 l/92 kW TSIMG16001800690
1.4 l/110 kW TSI ACT
MG16001900700MG 4x418002000750DSG160019007201.4 l/110 kW TSIMG16001900700DSG160019007101.8 l/132 kW TSIMG18002000740DSG180020007502.0 l/162 kW TSIDSG200020007502.0 l/206 kW TSIDSG 4x422002200750
1.6 l/88 kW TDI CR
MG15001800740MG (GreenLine)15001800750DSG15001800750
2.0 l/110 kW TDI CR
MG20002000750MG 4x422002200750DSG200020007502.0 l/130 kW TDI CRDSG20002000750
2.0 l/140 kW TDI CR
MG20002000750DSG20002100750DSG 4x422002200750a)
Only valid for some countries.
WARNINGNever exceed the maximum permissible axle and draw bar load or the per-
missible weight of the trailer - risk of accident!
Towing a trailer
Driving speed
For reasons of safety do not drive more than 100 km / h when the towing vehi-
cle is a passenger car of category M1.
For reasons of safety do not drive more than 80 km / h when the towing vehi-
cle is a lorry of category N1.
Immediately reduce your speed as soon as even the slightest swaying of the
trailer is detected. Never attempt to stop the trailer from “swaying” by acceler-
ating.
Brakes
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply
the brakes gently at first, then brake firmly. This will avoid brake jolts resulting
from the trailer wheels locking. 188Driving
On downhill sections shift down a gear in good time to also use the engine as
a brake.WARNINGAlways drive particularly carefully with the trailer.
CAUTION
If you tow a trailer frequently, you should also have your vehicle inspected be-
tween service intervals.
Anti-theft alarm system
If the vehicle is locked, the alarm is activated when the electrical connection to
the trailer is interrupted.
Always switch off the anti-theft alarm system before a trailer is coupled or un-
coupled » page 57 .
Conditions for including a trailer in the anti-theft alarm system. The vehicle is factory-fitted with an anti-theft alarm system and towing
device.
The trailer is electrically connected to the towing vehicle via the trailer
socket.
The electrical system of the vehicle and trailer is functional.
The vehicle is locked and the anti-theft alarm system is activated.
CAUTION
For technical reasons, trailers with rear LED lights cannot be connected to the
anti-theft alarm system.189Hitch and trailer