
Brake fluid142Vehicle battery142
Wheels
145
Wheels and tyres
145
Operating in winter conditions
148
Do-it-yourself
Emergency equipment, and self-help
149
Emergency equipment
149
Changing a wheel
151
Breakdown kit
154
Jump-starting
156
Towing the vehicle
157
Remote control - change battery
159
Emergency unlocking / locking of doors
159
Replacing windscreen wiper blades
161
Fuses and light bulbs
162
Fuses
162
Bulbs
165
Technical data
Technical data
173
Basic vehicle data
173
Vehicle-specific details per engine type
178
Index
3Table of Contents

Interior lighting, rearFig. 46
Interior lights at the rear
Operation (by moving the lens
A
) » Fig. 46
Activating
Automatic operation (centre position) 1)
Switching off
Visibility
Introduction
This chapter contains information on the following subjects:
Rear window heater
58
Front sun visors
59
Panoramic roof sun shade
59WARNINGNo objects should be attached to the sun visor that could restrict the view
or endanger the vehicle occupants during sudden braking or in a collision.Rear window heaterFig. 47
Button for rear window heater
Read and observe on page 58 first.
The heater for quick defrosting and ventilation of the rear window.
The heating only works when the engine is running.
›
To switch the heating on / off,press
button
» Fig. 47 .
When the heater is switched on, a lamp illuminates inside the button.
The heating automatically switches off after 10 minutes.
Note
If the on-board voltage decreases, the heating switches off automatically
» page 142 , Automatic shutdown of consumers - vehicle battery discharge
protection .1)
In this position, the same conditions apply as for the automatic operation of the lighting from the front
seats » page 57 .
58Operation

Removing/insertingFig. 60
Removing/instaling the headrest
The removal and installation of headrests is the same in the front and rear.
›
Before removing/installingthe headrests, fold the corresponding seat back-
rest slightly forward » page 63.
›
To remove the headrest, pull it out of the seat backrestup to the latch.
›
Press locking button
A
in the direction of arrow
1,
and pull out the head re-
straint in the direction of arrow
2
» Fig. 60 .
›
To insert the headrest, push the headrest into the seat backrest in the direc-
tion of arrow
3
until the locking button clicks into place.
Front seat heater
Fig. 61
Buttons for front seat heater
The seat backrests and seats can be heated electrically.
Seat heating buttons » Fig. 61
Left seat heating
Right seat heating
›
To turn on the heater at maximum heat (level 2) press button
or
.
By repeatedly pressing the button, the heat is turned down until it is com-
pletely switched off . The level of the seat heater is indicated by the number of
illuminated warning lights in the switch.
The seat heating only operates when the engine is running.WARNINGIf you are sensitive to pain and/or temperature, e.g. through medication,
paralysis or because of chronic illness (e.g. diabetes), we recommend not to
use the seat heating. If the seat heater is used, we recommend to make
regular breaks in your journey when driving long distances, so that the
body can recuperate from the stress of the journey. Please consult your
doctor, who can evaluate your specific condition.
CAUTION
The following instructions must be observed to avoid damage to the seats.■Do not kneel on the seats or otherwise apply concentrated pressure to them.■
Do not switch on the heating for unoccupied seats.
■
Do not switch on the heating for seats which have objects on them (e.g. a
child seat, bag or similar).
■
Do not switch on the heating for seats which have seat covers or protective
covers on them.
Note
■ If the heaters for the rear seats are set to their highest intensity (level 2),
they are automatically switched down to level 1 after 10 minutes.■
If the on-board voltage decreases, the seat heating switches off automati-
cally » page 142 , Automatic shutdown of consumers - vehicle battery dis-
charge protection .
65Seats and headrests

Fig. 141
Display of the instrument cluster: Examples of ACC status dis-
plays
Read and observe
on page 110 first.
The ACC allows a speed of 30-160 km/h to be set or a distance to the preced-
ing vehicle to be very short of very long to be set.
The ACC adjusts the set speed with respect to the detected vehicle ahead,
thus maintaining the selected proximity.
The ACC can detect a vehicle that is up to approx. 120 m ahead using the radar
sensor.
ACC display » Fig. 140
Vehicle detected (control active)
Line showing the displacement of the distance when setting » page 113,
Set the clearance level
Set distance to the vehicle ahead
Vehicle detected (control deactivated)
ACC status displays » Fig. 141
Control deactivated.
Control activated - no vehicle detected.
Regulation deactivated - no speed stored.
Control activated (vehicle detected).
Note to reduce speed
If the delay of the ACC is insufficient in relation to the vehicle in front, the
warning light lights up in the instrument cluster and the display shows a
message to engage the brake pedal.
1234NoteSome ACC notifications in the display of the instrument cluster may be hidden
by notifications for other functions. An ACC notification automatically appears
for a brief moment when there is a change in status of the ACC.
Automatic stop-start
Read and observe
on page 110 first.
Vehicles with an automatic transmission can decelerate to a complete stop
and start moving again using the ACC.
Decelerate to a complete stop
If a vehicle ahead decelerates to a standstill, the ACC will also decelerate your
vehicle to a complete stop.
Starting to drive again after a holding period
As soon as the vehicle ahead starts moving again after a holding period, your
vehicle will also move and the speed will continue to be controlled. Control is
automatically disconnected in case of longer holding periods.
Operation overview
Fig. 142
Operating lever
Read and observe
on page 110 first.
Overview of ACC functions operated with the lever » Fig. 1421Activate ACC (control deactivated)2Start control (resume) / increase speed by 1 km/h at a time
(sprung position)3Interrupt control (sprung position) 111Assist systems

4Deactivate ACC5 Increase speed by 10 km/h at a time6 Decrease speed by 10 km/h at a timeA Set proximity levelBStart control / reduce speed in increments of 1 km/h
If the lever is set from the position
directly into the sprung position
the current speed is stored and the control process is started.
Start control
Read and observe
on page 110 first.
Basic requirements for start of control The ACC is activated.
On vehicles with manual transmission , the second gear or a higher gear is
selected and the current speed is greater than 25 km/h.
On vehicles with automatic transmission the selector lever is in the posi-
tion D / S or in the Tiptronic position and the current speed is higher than
2 km / h.
Start control
›
Press the button
» Fig. 142 on page 111 press.
›
Or Set the lever into the sprung position
» Fig. 142 on page 111 set.
The ACC takes the current driving speed and performs the control, the warning
light illuminates in the instrument cluster.
If the control is started by moving the lever to the position and should
the speed be stored already, the ACC adopts this speed and executes control.
Note
If control is started at a speed of less than 30 km/h on vehicles with an auto-
matic transmission, the speed of 30 km/h is stored. The speed increases auto-
matically to 30 km/h or is regulated with respect to the speed of the vehicle
ahead.
Stop/resume control
Read and observe
on page 110 first.
Stop control
›
Set the lever into the sprung position
» Fig. 142 on page 111 set.
›Or
Apply the brake.
Control stops, the speed remains stored.
Resume control›
Start control » page 112, Start control .
Note
Control is also stopped when the clutch pedal is held down for longer than 30
s or the TCS is deactivated.
Set/change the desired speed
Read and observe
on page 110 first.
The desired speed can be set or changed using the control lever » Fig. 142 on
page 111 .
Setting/changing the speed by increments of 10 km/h at a time ( ) - re-
quirements
The ACC is activated.
Increasing/reducing the speed by increments of 1 km/h at a time ( /
-
requirements
The ACC is activated.
Vehicle control takes place.
Changing the speed by adopting the current speed ( ) - requirements
The ACC is activated.
The vehicle is moving at a speed other than that which is stored.
Note
■
If during control the speed is increased by pressing the accelerator, control is
temporarily stopped. Upon releasing the accelerator, control is automatically
resumed.■
If during control the speed is reduced by applying the brake, control is stop-
ped. Control needs to be restarted in order to resume » page 112.
■
If the vehicle is controlled by a lower speed than the stored speed, then
the current speed is stored by pressing the button again
and the speed is
reduced in increments of 1 km/h.
112Driving

Set the clearance levelRead and observe
on page 110 first.
The proximity to the vehicle ahead can be set with the lever » Fig. 142 on
page 111 or in the Infotainment » Owner's Manual Infotainment .
Setting by means of the lever
›
Set the switch
Adjust in the spring-tensioned position
or
» Fig. 142
on page 111 .
The display of the instrument cluster shows line
2
» Fig. 140 on page 110 ,
which indicates the proximity.
›
Using the switch on the lever, adjust the line
2
to the desired dis-
tance.
Note
■ If the proximity is changed in infotainment, the change will only come into
effect after a subsequent activation of the ACC.■
The higher the speed, the greater the proximity to the vehicle ahead.
Special driving conditions
Fig. 143
Cornering / narrow vehicles or vehicles travelling side by side
Fig. 144
Lane changes of other vehicles / stationary vehicles
Read and observe
on page 110 first.
The following (and similar) situations require special attention and possibly the intervention of the driver (braking, accelerating etc.).
When cornering
When driving into or driving out of long corners, it could be that a vehicle is
travelling in the adjacent lane and is scanned by the radar » Fig. 143 -
. The
host vehicle is then controlled according to this vehicle.
Narrow vehicles or vehicles travelling side by side
A narrow or offset vehicle driving can only be recognized by the ACC if this is
located in the scanning range of the radar » Fig. 143 -
.
Other vehicles changing lanes
Vehicles that change onto the lane with a small distance » Fig. 144 -
may not
be detected by ACC in good time.
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 vehi-
cle, » Fig. 144 -
the ACC does not respond to the stationary vehicle.
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.
113Assist systems

Overtaking and towingRead and observe
on page 110 first.
When overtaking
When your vehicle is being controlled at a speed that is lower than the set
speed and the turn signal is operated, ACC assesses this situation as meaning
that the driver wishes to overtake. The ACC automatically accelerates the vehi-
cle, thereby reducing the proximity to a vehicle ahead.
If your vehicle changes to the overtaking lane and no vehicle is detected
ahead, ACC accelerates until the set speed is reached and then keeps it con-
stant.
Acceleration can be cancelled at any time by touch on the brake pedal or
pressing the button on the lever
» Fig. 142 on page 111 .
Towing a trailer
When towing, or if another accessory is connected to the trailer socket, ACC control is set with a lower rate. The manner of driving should therefore be
adapted to this limitation.
Malfunctions
Read and observe
on page 110 first.
If, for some unknown reason, ACC is not available, the warning light appears
in the display of the instrument cluster and an appropriate message is shown.
Sensor covered / dirty
If the sensor is dirty or covered, a message indicating that there is no sensor
view appears. Clean the sensor cover or remove the obstacles » Fig. 125 on
page 100 .
ACC not available
If the ACC is currently unavailable, a message concerning the unavailability ap-
pears. Stop the vehicle, switch off the engine and then start it again. If ACC
continues to be unavailable, seek the assistance of a specialist garage.
ACC fault
With an ACC fault, an error message appears. Seek help from a specialist ga-
rage.
Front Assist
Introduction
This chapter contains information on the following subjects:
Operation
114
Distance warning
115
Warning and automatic braking
115
Deactivation/activation
116
Malfunctions
116
The Front Assist (hereinafter referred to as "system") warns you of the danger
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 100.
WARNING■
The general information relating to the use of assistance systems must
be observed » page 100, 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 114 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.
▶ 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.
TCS is activated » page 102.
The vehicle is travelling forwards at a speed of more than approx. 5 km/h.
114Driving

Opening and closing the bonnetFig. 167
Opening the bonnet
Read and observe
and on page 137 first.
Open flap
›
Ensure that the windscreen wipers are not raised away from the windscreen
- risk of damage to the bonnet.
›
Open the front door and pull the release lever below the dash panel in the
direction of arrow
1
» Fig. 167 .
›
Press the release lever in the direction of arrow
2
and the bonnet will be
unlocked.
›
Raise the bonnet in the direction of the arrow
3
.
›
Remove the lid prop in the direction of arrow
4
from the holder.
›
Secure the open flap inserting the end of the post into the opening in the di-
rection of arrow
5
.
Close the flap
›
Lift the bonnet.
›
Decouple the bonnet support and press into the holder designed to hold it.
›
Drop down the bonnet lid from a height of about 20 cm applying light pres-
sure until it clicks safely into place.
WARNING■ Never drive with the bonnet lid not properly closed - risk of accident!■Make sure that when closing the bonnet, no body parts are crushed -
there is danger of injury!Engine compartment overviewFig. 168
Arrangement (example) in the engine compartment
Read and observe
and on page 137 first.
Windscreen washer fluid reservoir
139
Coolant expansion reservoir
141
Engine oil dipstick
140
Engine oil filler opening
140
Brake fluid reservoir
142
Vehicle battery
142ABCDEF138General Maintenance