
H
Handbrake see Parking brake
Hazard warning lamps ......................138
Head bags Display message ............................ 254
Operation ........................................ .48
Headlamps
Fogging up ..................................... 141
see Automatic headlamp mode
Head level heating (AIRSCARF) ........124
Head restraint Lowering manually (rear) ...............119
Head restraints
Adjusting ....................................... 118
Adjusting (electrically). ..................119
Adjusting (rear) .............................. 119
see NECK-PR Ohead restraints
Heating
see Climate control
High-beam headlamps
Changing bulbs .............................. 143
Display message ............................ 258
Switching on/off ........................... 138
Hill start assist .................................. 168
HOLD function Activating ....................................... 202
Deactivating ................................... 202
Display message ............................ 263
Function/notes ............................. 201
Hood
Closing .......................................... .313
Display message ............................ 272
Important safety notes ..................312
Opening ......................................... 312
Hydroplaning ..................................... 188I
Ignition lock see Key positions
Immobilizer .......................................... 78
Indicator lamps see Warning and indicator lamps Instrument cluster
Overview .......................................... 31
Settings ......................................... 243
Warning and indicator lamps ...........32
Instrument cluster lighting ..............244
Interior lighting ................................. 141
Automatic control ..........................141
Delayed switch-off (on-board
computer) ...................................... 245
Emergency lighting ........................142
Manual control ............................... 142
Overview ........................................ 141
Reading lamp ................................. 141
Setting the brightness of the
ambient lighting (on-board
computer) ...................................... 244
Setting the brightness of the
display/switch (on-board
computer) ...................................... 244
Setting the color of the ambient
lighting (on-board computer) .........244 J
Jack Storage location ............................ 328
Using ............................................. 369
Jump starting (engine) ......................334 K
KEYLESS-GO Convenience closing feature ............97
Display message ............................ 274
Locking ............................................ 83
Start/Stop button .......................... 165
Starting the engine ........................167
Unlocking ......................................... 83
Keyp ositions
KEYLESS-GO .................................. 165
SmartKey ....................................... 165
Kickdown
Driving tips .................................... 175
Manual drive program ....................178
Knee bag .............................................. 47 Index
11

Correct driver's seat position
........116
Folding the backrests forward/
back ............................................... 120
Important safety notes ..................117
Overview ........................................ 117
Seat backres tdisplay message .....272
Seat heating problem ....................123
Seat ventilation problem ................124
Storing settings (memory function) 130
Switching AIRSCARF on/off ..........124
Switching sea theating on/off .......122
Switching seat ventilation on/off ..123
Selector lever
Cleaning ......................................... 325
Sensors (cleaning instructions) .......323
Service menu (on-board computer) .243
Service products Brake fluid ..................................... 387
Coolant (engine) ............................ 388
Engine oil ....................................... 386
Fuel ................................................ 384
Important safety notes ..................384
Refrigerant (air-conditioning
system) .......................................... 389
Washer fluid .................................. .389
Service work
see ASSYST PLUS
Settings
Factory (on-board computer) .........247
On-board computer .......................243
Setting the air distribution ...............155
Setting the airflow ............................156
Side impact air bag .............................47
Side marker lamp (display
message) ............................................ 259
Side windows Cleaning ......................................... 322
Convenience closing feature ............97
Convenience opening feature ..........96
Important safety information ...........94
Opening/closing .............................. 94
Opening/closing all (Cabriolet) ........95
Problem (malfunction) .....................99
Resetting ......................................... 98
Sliding sunroof
see Panorama roof with power
tilt/sliding panel SmartKey
Changing the battery .......................85
Changing the programming .............83
Checking the battery .......................85
Convenience closing feature ............97
Convenience opening feature ..........96
Display message ............................ 274
Door central locking/unlocking .......82
Important safety notes ....................82
Loss ................................................. 87
Mechanical key ................................ 84
Opening/closing soft top .............. .101
Overview .......................................... 82
Positions (ignition lock) .................165
Problem (malfunction) .....................87
Starting the engine ........................167
Snow chains ...................................... 347
Sockets General notes ................................ 296
Rea rcompartmen t......................... 297
Soft top
AIRCAP .......................................... 107
Cleaning ......................................... 320
Closing manually in an emergency .101
Display message ............................ 273
Important safety notes ....................99
Installing/removing the AIRCAP
wind screen ................................... 108
Opening/closing (SmartKey) .........101
Opening/closing (with soft-top
switch) ........................................... 100
Problem (malfunction) ...................110
Relocking ....................................... 105
wind screen ................................... 106
Soft-top switch .................................. 100
Spare wheel Storage location ............................ 378
see Emergency spare wheel
Specialist workshop ............................ 25
Special seat bel tretractor .................. 65
Speed ,controlling
see Cruise control
Speedometer
Digital ............................................ 236
In the Instrument cluster .................31
Segments ...................................... 233
Selecting the unit of measurement 243
see Instrument cluster 16
Index

Dashboard
Function Page
0002
Steering wheel paddle
shifters
176
0003
Cruise control lever 189
0023
Instrument cluster 31
0022
Horn
0020
DIRECT SELECT lever 172
0021
PARKTRONIC warning
display
204
0014
Overhead control panel 38
0015
Climate control systems 148
0016
Ignition lock 165
Start/Stop button
165 Function Page
0017
Adjusts the steering wheel 124
Steering wheel heating 125
0018
Combination switch 137
001A
Parking brake 183
001B
Diagnostics connection 25
001C
Opens the hood 312
001D
Releases the parking brake 183
001E
Light switch 13430
Dashboa
rdAt a glance

G
WARNING
If head restraints are not installed and
adjusted correctly, they cannot provide
protection as intended. There is an increased
risk of injury in the head and neck area, e.g.
in the event of an accident or when braking.
Always drive with the head restraints
installed. Before driving off, make sure for
every vehicle occupant that the center of the
head restraint supports the back of the head
at about eye level.
General notes Observe the important safety notes regarding
the seats (Y page 117).
Do not rotate the head restraints of the front
and rear seats. Otherwise, you cannot adjust
the height and angle of the head restraints to
the correct position.
Adjusting the height of the head
restraints electrically X
To adjust the head restraint height: slide
switch for head restraint adjustment 0002up
or down in the direction of the arrow. Rear seat head restraints Lowering and extending the rear seat
head restraints from the front (Cabriolet)
X
Turn the SmartKey to position 2in the
ignitio nlock (Y page 165).
X To lower: press button 0002.
The head restraints move to the lowest
position.
If AIRCAP is activated, the right-hand
indicator lamp on the AIRCAP button goes
out.
X To extend: press button 0002again.
The head restraints only move into the
central position if AIRCAP is activated and
no rear seat belt has been fastened.
If AIRCAP is activated, the right-hand
indicator lamp on the AIRCAP button
comes on.
i Please see further information on AIRCAP
(Y page 107). Lowering the head restraints in the
rear compartment manually
(Cabriolet)
If the head restraints in the rear compartment
are in the upper position, the soft top cannot
be closed fully. Seats
119Seats, steering wheel and mirrors Z

Folding the seat backrest forward
Example: Coupe
The seat moves forwards if you have folded
the backrest forwards and the seat is in the
rear half of the range. This makes it easie rfor
passengers to get into and out of the rear
compartment.T he head restraint is lowered
simultaneously.
X Pull seat release handle 0002forwards and
fold the backrest forwards as far as it will
go.
The seat automatically moves to the
foremost position and the head restraint is
lowered.
Folding the seat backrest back X
Swing back the seat backrest.
The seat moves automatically to the stored
position. Adjusting the multicontour seat
0002
To adjust the thigh cushion
0003 To adjust the backrest contour in the
lumbar region
0023 To adjust the backrest contour in the
upper back region
0022 To adjust the side bolsters of the seat
backrest
You can adjust the contour of the front seats
individually so as to provide optimum support
for your back and sides.
X Turn the SmartKey to position 2in the
ignition lock (Y page 165). Adjusting the 4-way lumbar support
0002
To raise the backrest contour
0003 To soften the backrest contour
0023 To lower the backrest contour
0022 To harden the backrest contour
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. Seats
121Seats, steering wheel and mirrors Z

Switching the seat heating on/off
Activating/deactivating G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk
of injury.
Therefore, do not switch the seat heating on
repeatedly. Driver's and front-passenger seat
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level
3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 165).
X To switch on: press button0002repeatedly
until the desired heating level is set.
X To switch off: press button0002repeatedly
until all the indicator lamps go out. i
If the battery voltage is too low, the seat
heating may switch off. 122
SeatsSeats, steering wheel and mirrors

Problems with the seat heating
Problem Possible causes/consequences and
0001 Solutions
The seat heating has
switched off
prematurely or cannot
be switched on. The on-board voltage is too low because too many electrical
consumers are switched on.
X
Switch off electrical consumers that you do not need, such as
the rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating will
switch back on automatically. Switching the seat ventilation on/off
Activating/deactivating Driver's and front-passenger seat
The three blue indicator lamps in the buttons
indicate the ventilation level you have
selected.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 165).
X To switch on: press button0002repeatedly
until the desired ventilation level is set.
X To switch off: press button0002repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
i Coupe: you can open the side windows
and the panorama roof with power tilt/
sliding panel using the "Convenience
opening" feature (Y page 96). The seat
ventilation of the driver's seat
automatically switches to the highest level. Cabriolet: you can open the soft top and the
rear side windows with the SmartKey
(Y
page 101). The seat ventilation of the
driver's seat automatically switches to the
highest level. Seats
123Seats, steering wheel and mirrors Z

G
WARNING
Childre ncould injure themselves if they
adjust the steering wheel. There is a risk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle. Adjusting the steering wheel
0002
To adjust the steering wheel height
0003 To adjust the steering wheel position
(fore-and-aft adjustment)
i Further related subjects:
R EASY-ENTRY/EXIT feature
(Y page 126)
R Storing settings (Y page 130) Steering wheel heating
Activating/deactivating X
Turn the SmartKey to position 2in the
ignition lock (Y page 165).
X To switch on/off: turn the lever in the
direction of arrow 0002or0003.
Indicator lamp 0023lights up or goes out.
Vehicles without KEYLESS-GO: when you
remove the SmartKey from the ignition lock,
the steering wheel heating is deactivated.
Vehicles with KEYLESS-GO: when you switch
off the ignition and open the driver's door, the
steering wheel heating is deactivated.
i The steering wheel heating may switch off
temporarily if:
R the temperature in the vehicle interior is
above 86 ‡ (30 †).
R the temperature of the steering wheel is
above 95 ‡ (35 †).
Indicator lamp 0023remains on. Steering wheel
125Seats, steering wheel and mirrors Z