Page 35 of 334
Function Page
0079
Horn
007A
Opens the hood 248
007B
Steering wheel buttons 37 Cockpit
33At a glance
Page 36 of 334
Instrument cluster
Displays and controls
Instrument cluster on vehicles without steering wheel buttons
Instrument cluster in vehicles with steering-wheel buttons
Function Page
0043
Speedometer 181
0044
Tachometer 181
0087
0074,
0075Brightens/dims the
instrument cluster lighting 181
0085
Fuel gage with fuel filler flap
location indicator 181
0083
Display
Vehicles without steering
wheel buttons
182
Vehicles with steering
wheel buttons 184 Function Page
0084
Reset button
0045 34
006B
Menu button
0079 • changes standard display 182
• selects menus 183
006C
Service button
0098 Checks the engine oil level 25034
Instrument clusterAt a glance
Page 37 of 334
Indicator and warning lamps
Instrument cluster on vehicles without steering wheel buttons
Instrument cluster in vehicles with steering-wheel buttons
Function Page
0043 Speedometer with warn-
ing and indicator lamps
0072
ESP
®
warning lamp 218
ASR warning lamp 218
003F
Coolant level too low 223
00AC
Coolant temperature too
high 223
0075
Restraint systems malfunc-
tion 42
0065
Brake fluid level too low 219
EBD malfunctioning 218
Trailer brake force booster
malfunction
219
00B2
Engine oil level warning 222 Function Page
00B9
Check Engine indicator
lamp
224
0028
Preglow 139
Preglow system malfunc-
tion
225
0044 Indicator and warning
lamps
004A
Left-hand turn signal 94
0025
ABS malfunction 218
0077
Tire pressure loss or the tire
pressure monitor is mal-
functioning (USA only) 226
Tire pressure loss (Canada
only)
292Instrument cluster
35At a glance
Page 38 of 334

Function Page
00B1
Fluid level too low in wind-
shield washer/headlamp
cleaning system
226
00E2
DEF supply low or contami-
nated/thinned 182
Exhaust gas aftertreatment
malfunction 221
00C7
Warning and indicator
lamps, distance warning
system
162
00B0
Warning and indicator
lamps, Lane Keeping Assist
166
003E
Door or hood open 227
Electrically operated step
malfunction 227
0026
Brake pads/linings worn 222
0057
High-beam headlamps on
(vehicle with steering wheel
buttons) 94
004D
Right-hand turn signal 94
003D
ASR malfunction 58
BAS malfunction 218
0089
ESP
®
malfunction 218 Function Page
009F
Dirt accumulation in air fil-
ter
225
00B4
Reserve fuel 181
Fuel filler cap open 224
00B8
Water in the fuel 226
003D
Battery charging malfunc-
tion
222
0049
Bulb defective 227
0087 Tachometer with warn-
ing and indicator lamps 0066
Parking brake applied 155
0058
Low-beam headlamps on 92
004E
Working speed governor
(ADR) on
172
0057
High-beam headlamps on
(vehicle without steering
wheel buttons) 94
0077
Reserve fuel 224
Fuel filler cap open 224
0089
ESP
®
malfunction 218
0076
Fasten seat belts 227
i
Corresponding messages may also be
shown in the display (Y page 197).36
Instrument clusterAt a glance
Page 39 of 334
Steering wheel buttons
Function Page
0043
Display 184
On-board computer oper-
ation 0044
Selects a submenu or
adjusts the volume
184
0081
Up/increases the vol-
ume 0082
Down/reduces the
volume Using the telephone 196
0061
Accepts a call/starts
dialing 0076
Ends a call/rejects an
incoming call 0087
Scrolls from one menu to
another
184
0080
Forwards 007F
Back Scrolls within a menu 184
0063
Forwards 0064
Back Center console
Function Page
0043
Stowage compartment 231
0044
Audio 10 or Audio 15 (see
the separate operating
instructions)
0087
Air-conditioning control
panel
112
Paper holder
1 233
0085 Center console control
panel
0072
Switches the left/right-
hand seat heating on/off
87
0085
Switches the windshield
heating on/off
119
0071
Switches the rear window
defroster on/off
119
0069
Activates/deactivates
PARKTRONIC
169
1
Only on vehicles without rear-compartment climate control. Center console
37At a glance
Page 58 of 334

G
WARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. G
WARNING
If persons, particularly children are subjected to prolonged exposure to extreme heat or
cold, there is a risk of injury, possibly even
fatal. Never leave children unattended in the
vehicle. G
WARNING
If the child restraint system is subjected to
direct sunlight, parts may get very hot. Chil-
dren may burn themselves on these parts,
particularly on the metal parts of the child
restraint system. There is a risk of injury.
If you leave the vehicle, taking the child with
you, always ensure that the child restraint
system is not exposed to direct sunlight. Pro- tect it with a blanket, for example. If the childrestraint system has been exposed to direct
sunlight, let it cool down before securing the
child in it. Never leave children unattended in the vehicle. Child-proof locks for the sliding door
and rear door Sliding door
Rear door
0043
Child safety bolt
0048 Door secured – then make sure that the
child-proof locks are working properly.
0049 Door released
The child-proof lock on the doors enable you
to secure each door individually.
A door with an activated child-proof lock can- not be opened from the inside. If the vehicle is unlocked, the door can be opened from the
outside. Pets in the vehicle
G
WARNING
If you leave animals unattended or unsecured in the vehicle, they could press buttons or
switches, for example. 56
Pets in the vehicleSafety
Page 60 of 334

Braking
If ABS intervenes when braking, you will feel a
pulsating in the brake pedal.
The pulsating brake pedal can be an indica-
tion of hazardous road conditions and func-
tions as a reminder to take extra care while
driving.
X If ABS intervenes: continue to depress the
brake pedal with force until the braking sit-
uation is over.
X To make a full brake application:
depress the brake pedal with full force. ASR (acceleration skid control)
General notes Important safety notes
Observe the important safety guidelines for
the driving safety system (Y
page 57).
ASR can neither reduce the risk of an accident nor suspend the laws of physics if the driver
does not pay attention when pulling away or
accelerating. ASR is only an aid. Always adapt
your driving style to suit the prevailing road
and weather conditions.
Vehicles without steering wheel buttons: if
ASR is malfunctioning, the 003Dindicator
lamp lights up while the engine is running and the engine power may be reduced
(Y page 218).
ASR significantly improves traction, i.e. the
transmission of power from the tires to the
road surface, and thus increases the vehicle's driving stability. If the driving wheels start to
spin, ASR brakes individual drive wheels and
limits the engine torque. ASR thus signifi-
cantly assists you when pulling away and
accelerating, especially on wet or slippery
roads.
If traction on the road surface is not sufficient,
even ASR will not allow you to pull away with- out difficulty. The type of tires and total
weight of the vehicle as well as the gradient of
the road also play a crucial role. If ASR intervenes, the
0072warning lamp in
the instrument cluster flashes.
Activating/deactivating ASR G
WARNING
If deactivated, ASR will not attempt to stabi-
lize the vehicle during pulling away and accel- eration. There is an increased risk of skiddingand of an accident.
Only deactivate ASR in the situations descri-
bed in the following.
! If you deactivate ASR, ESP ®
will still inter-
vene to stabilize the vehicle. Frequent brak-
ing automatically triggered by ESP ®
can
damage the brake system.
For this reason, deactivate ASR only briefly and when absolutely necessary. When ESP
®
is intervening and the 0072warn-
ing lamp in the instrument cluster is flashing,
leave ASR on. In this case, only depress the
accelerator pedal as far as required when
pulling away.
X Press the 00E3button.
If ASR is deactivated, the 0072warning
lamp in the instrument cluster lights up.
ASR is automatically activated when the
engine is started.
It may be best to deactivate ASR briefly in the
following situations:
R when using snow chains
R in deep snow
R on sand or gravel 58
Driving safety systemsSafety
Page 61 of 334

If you deactivate ASR:
R engine torque is not limited and the drive
wheels are able to spin. The spinning
wheels will then achieve a cutting effect for
better traction.
R traction control remains active through
brake intervention. If a drive wheel attains
its tire traction limit because one side of the
road is slippery, for example, that wheel is
braked. The traction is then increased in
this situation.
R active brake intervention by ESP ®
to
increase driving stability remains active.
The 0072 warning lamp in the instrument
cluster flashes when ESP ®
is intervening. BAS (Brake Assist System)
G
WARNING
If BAS is malfunctioning, the braking distance
in an emergency braking situation is
increased. There is a risk of an accident.
In an emergency braking situation, depress
the brake pedal with full force. ABS prevents
the wheels from locking.
Vehicles without steering wheel buttons: if
the BAS driving safety system is malfunction-
ing, the 003Dwarning lamp lights up while the
engine is running (Y page 218).
BAS operates in emergency braking situa-
tions. If you depress the brake quickly, BAS
automatically increases the brake pressure,
thereby reducing the stopping distance.
The brakes will function as usual once you
release the brake pedal. BAS is deactivated. EBD (electronic brake force distribu-
tion) G
WARNING
If EBD is malfunctioning, the rear wheels can
lock, e.g. under full braking. This increases the risk of skidding and an accident. You should therefore adapt your driving style
to the different handling characteristics. Have
the brake system checked at a qualified spe-
cialist workshop.
EBD monitors and controls the brake pres-
sure to the rear wheels. This enables EBD to
improve handling during braking.
Observe the information on warning and indi- cator lamps (Y page 218). ESP
®
(Electronic Stability Program)
Important safety notes Observe the important safety guidelines for
the driving safety system (Y
page 57). G
WARNING
If ESP ®
is malfunctioning it will not provide
any vehicle stabilization. There is an increased
risk of skidding or of an accident.
Exercise caution when continuing to drive.
Have ESP ®
checked at a qualified specialist
workshop.
! Do not run the vehicle on a roller dyna-
mometer (e.g. for performance tests). If
you must operate the vehicle on a roller
dynamometer, please consult a qualified
specialist workshop in advance. You could
otherwise damage the drive train or the
brake system.
If ESP ®
is malfunctioning, the 0089warning
lamp lights up while the engine is running and
the engine power may be reduced
(Y page 218).
Only use wheels with the recommended tire
sizes. Only then will ESP ®
function properly.
Crosswind Assist Crosswind Assist does not work if ESP
®
is
deactivated or disabled because of a mal-
function. Driving safety systems
59Safety Z