2012 MERCEDES-BENZ A CLASS turn signal bulb

Notes/function
.............................. 198
Trailer towing ................................. 199
Bonnet
Active
bonnet (pedestrian protec-
tion) ............................................... 284
Closing ........................................... 286
Display message ............................ 254
Important safety notes .................. 284
Opening ......................................... 285
Boot
see Tailgate
Boot load (maximum) ........................ 346
Brake Assist System see BAS (Brake Assist System)
Brake fluid
Display message ............................ 236
Notes ............................................. 344
Brake lamps
Adaptive ........................................... 65
Changing bulbs .............................. 116
Display message ............................ 240
Brakes
ABS .................................................. 61
Adaptive Brake Assist ......................64
BAS .................................................. 62
Brake fluid (notes) .........................344
Display message ............................ 230
Driving tips .................................... 166
Important safety notes .................. 166
Parking brake ................................ 163
Warning lamp ................................. 258
Breakdown
see Flat tyre
see Towing away/tow-starting
Bulbs
see Replacing bulbs C
Calling up a fault see Display messages


Car
see Vehicle
Care
Automatic car wash ....................... 291
Carpets .......................................... 296
Display ........................................... 295
Exhaust pipe .................................. 294Exterior lighting
............................. 293
Gear or selector lever ....................295
High-pressure cleaner ....................

291
Interior ........................................... 295
Matt paintwork .............................. 292
Notes ............................................. 290
Paint .............................................. 292
Plastic trim .................................... 295
Reversing camera ..........................294
Roof lining ...................................... 296
Seat belt ........................................ 296
Seat cover ..................................... 296
Sensors ......................................... 294
Steering wheel ............................... 295
Trim pieces .................................... 295
Washing by hand ........................... 291
Wheels ........................................... 292
Windows ........................................ 293
Wiper blades .................................. 293
Wooden trim .................................. 295
Car wash (care) ................................. 291
Central locking Automatic locking (on-board com-
puter) ............................................. 223
Locking/unlocking (key) ..................75
Centre console
Lower section .................................. 35
Upper section .................................. 34
Changing bulbs
Brake lamps ................................... 116
Cornering light function .................115
Dipped-beam headlamps ............... 114
Main-beam headlamps ................... 114
Rear foglamp ................................. 116
Reversing lamps ............................ 116
Tail lamps ...................................... 116
Turn signals (front) ......................... 115
Turn signals (rear) .......................... 116
Child-proof locks
Important safety notes .................... 60
Rear doors ....................................... 60
Children
In the vehicle ................................... 50
Restraint systems ............................ 50
Child seat
Automatic recognition ..................... 52
ISOFIX .............................................. 53
On the front-passenger seat ............516
Index

Reading lamp
................................. 111
Setting the ambient lighting
brightness (on-board computer) .... 222
Interior motion sensor ........................70
ISOFIX child seat securing system ....53 J
Jack Storage location ............................ 299
Using ............................................. 326
Jump starting (engine) ...................... 308K
Key Changing the battery ....................... 76
Checking the battery ....................... 76
Convenience closing feature ............ 85
Convenience opening feature .......... 85
Display message
............................ 256
Door central locking/unlocking ....... 75
Emergency key element ................... 75
Important safety notes .................... 74
Loss ................................................. 78
Modifying the programming .............75
Positions (ignition lock) ................. 143
Problem (malfunction) .....................78
Starting the engine ........................ 144
Key positions (ignition lock) ............143
Kickdown Driving tips .................................... 154
Manual drive program ....................158
Kneebag ............................................... 44L
Lamps see Warning and indicator lamps


Lane Keeping Assist
Activating/deactivating ................. 219
Display message ............................ 247
Function/information .................... 199
Lane package ..................................... 197
Lap time (RACETIMER) ......................226
Lashing eyelets ................................. 273
Licence plate lamp (display mes-
sage) ................................................... 241Lighting
see Lights

Lights
Activating/deactivating the Intel-
ligent Light System ........................ 221
Activating/deactivating the inte-
rior lighting delayed switch-off ....... 223
Active light function .......................109
Automatic headlamp mode ............ 105
Cornering light function .................109
Dipped-beam headlamps ............... 105
Display message ............................ 239
Driving abroad ............................... 104
Foglamps ....................................... 106
Foglamps (extended range) ...........109
Hazard warning lamps ................... 108
Headlamp flasher ........................... 108
Headlamp range ............................ 107
Light switch ................................... 105
Main-beam headlamps ................... 107
Motorway mode ............................. 109
Parking lamps ................................ 106
Rear foglamp ................................. 106
Setting the ambient lighting
brightness (on-board computer) .... 222
Side lamps ..................................... 106
Switching Adaptive Highbeam
Assist on/off ................................. 222
Switching the daytime driving
lights on/off (on-board computer) . 221
Switching the daytime driving
lights on/off (switch) ..................... 105
Switching the exterior lighting
delayed switch-off on/off (on-
board computer) ............................ 222
Switching the surround lighting
on/off (on-board computer) ..........222
Turn signals ................................... 107
see Interior lighting
see Replacing bulbs
Light sensor (display message) .......242
LIM indicator lamp Cruise control ................................ 169
DISTRONIC PLUS ........................... 174
Variable SPEEDTRONIC .................171
Limiting the speed
see SPEEDTRONIC
Loading guidelines ............................26812
Index

Outside temperature ...................... 209
Setting (climate control)
................128
TEMPOMAT
Function/notes ............................. 168
Theft-deterrent system
ATA (Anti-Theft Alarm system) .........69
Immobiliser ...................................... 69
Through-loading ................................ 271
Time see Separate Owner's manual
Timing (RACETIMER) .........................226
TIREFIT kit .......................................... 301
Top Tether ............................................ 54
Tow-away protection .......................... 70
Towing Important safety notes .................. 310
Towing a trailer
Active Parking Assist .....................190
Axle load, permissible .................... 349
Bulb failure indicator for LED lamps 206
ESP ®
(Electronic Stability Program) . 68
Pulling away with a trailer ..............145
Trailer tow hitch display message .. 255
Towing away
Fitting the towing eye ....................311
Removing the towing eye ...............312
With both axles on the ground ....... 312
With front axle raised ..................... 312
Tow-starting
Emergency engine starting ............ 314
Fitting the towing eye ....................311
Important safety notes .................. 310
Removing the towing eye ...............312
Trailer coupling
see Towing a trailer
Trailer towing
7-pin connector ............................. 206
Blind Spot Assist ............................ 199
Cleaning the trailer tow hitch ......... 294
Coupling up a trailer ......................204
Decoupling a trailer ....................... 204
Driving tips .................................... 201
Folding in the ball coupling ............205
Folding out the ball coupling ..........203
Important safety notes .................. 201
Lights display message .................. 239
Mounting dimensions .................... 348Parktronic ......................................
185
Power supply ................................. 206
Trailer loads ................................... 349
Transmission
see Automatic transmission
see Manual transmission
Transmission position display
(DIRECT SELECT lever) ......................152
Transporting the vehicle .................. 313
Trim pieces (cleaning instructions) . 295
Trip computer (on-board computer) 211
Trip meter Calling up ....................................... 211
Resetting (on-board computer) ...... 213
Turn signals
Changing bulbs (front) ................... 115
Changing bulbs (rear) .................... 116
Switching on/off ........................... 107
TV
Operating (on-board computer) ..... 215
see Separate operating instructions
Two-way radio
Frequencies ................................... 336
Installation ..................................... 336
Transmission output (maximum) .... 336
Type identification plate
see Vehicle identification plate
Tyre pressure
Display message ............................ 251
Not reached (TIREFIT) .................... 303
Reached (TIREFIT) .......................... 303
Recommended ............................... 321
Tyre pressure loss warning
Important safety notes .................. 323
Restarting ...................................... 323
Tyres
Changing a wheel .......................... 324
Checking ........................................ 319
Direction of rotation ......................324
Display message ............................ 251
Important safety notes .................. 318
M+S tyres ...................................... 320
MOExtended tyres .........................320
Replacing ....................................... 324
Service life ..................................... 319
Storing ........................................... 324
Summer tyres ........................ 168, 32018
Index

Overview of bulb replacement – bulbs
You can replace the following bulbs. The
details for the bulb type can be found in the
legend. Halogen headlamps
:
Turn signal lamp: PY 21 W
; Main-beam headlamp/side lamp/park-
ing lamp: H15 55 W/15 W
= Dipped-beam headlamp: H7 55 W Vehicles with Intelligent Light System
:
Cornering lamp: H7 55 W Tail lamp (halogen headlamps)
:
Reversing lamp: W 16 W
; Turn signal lamp: PY 21 W
= Tail lamp/brake lamp: W 16 W
? Rear foglamp: W 16 W
A Tail lamp: W 16 W Replacing the front bulbs
Fitting/removing the cover on the front
wheel arch You must remove the cover from the front
wheel housing before you can change the
front bulbs.
X
To remove: switch off the lights.
X Turn the front wheels inwards.
X Turn rotary knob : through 90°.
Cover ; is released.
X Push cover ; down.
X To fit: push cover ; up.
X Turn rotary knob : through 90°.
Cover ; is locked. Replacing bulbs
113
Lights and windscreen wipers Z

Turn signal lamp (halogen headlamps)
X
Switch off the lights.
X Open the bonnet.
X Turn bulb holder : anti-clockwise and pull
it out.
X Take the bulb out of bulb holder :.
X Insert the new bulb into bulb holder :.
X Insert bulb holder : and turn it clockwise
until it engages.
Cornering lamps (Intelligent Light Sys-
tem) G
WARNING
These bulbs are pressurised.
They can explode when being changed if:
R they are still hot
R they hit an object when being removed
R they are dropped
There is a risk of injury.
You should wear eye protection and clean
gloves when you are changing a bulb. If nec-
essary,

have bulbs changed at a qualified spe-
cialist workshop. X
Switch off the lights.
X Open the bonnet.
X Turn housing cover : anti-clockwise and
pull it out.
X Turn bulb holder ;
anti-clockwise and pull
it out.
X Take the bulb out of bulb holder ;.
X Insert the new bulb into bulb holder ;.
X Insert bulb holder ;
into the lamp and turn
it clockwise.
X Align housing cover : and turn it clock-
wise until it engages. Replacing the rear bulbs
Opening and closing the side trim pan-
els You must open the side trim panel in the lug-
gage compartment before you can replace
the bulbs in the tail lamps.
Left-hand side trim panel Replacing bulbs
115
Lights and windscreen wipers Z

Right-hand side trim panel
X
To open: turn release knob : 90° in the
direction
of the arrow and remove side trim
panel ;.
X To close:
insert side trim panel ; and turn
release knob : 90° in the opposite direc-
tion to the arrow.
Tail lamps X
Switch off the lights.
X Open the luggage compartment.
X Open the side trim panel ( Y page 115).X
Release and remove connector ;.
X Unscrew wing nut :
and remove the lamp
cluster. Lamp cluster
X
Remove plastic nut ? using a suitable
item, e.g. a coin.
X Release attachments =.
X Remove the bulb holder from the lamp clus-
ter. Bulb holder
A
Tail lamp/brake lamp
B Reversing lamp
C Rear foglamp
D Tail lamp
E Turn signals
X Tail lamp/brake lamp/rear foglamp/
reversing lamp: remove the correspond-
ing bulb from the bulb holder.
X Insert the new bulb into the bulb holder.
X Turn signal lamp: lightly press the bulb
into the bulb holder, turn it anti-clockwise
and remove it from the bulb holder. 116
Replacing bulbs
Lights and windscreen wipers

Display messages Possible causes/consequences and
M Solutionsb
Trailer left indi‐
cator or Trailer
right indicator The left or right-hand trailer turn signal lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself.
or
X Visit a qualified specialist workshop. b
Trailer brake lamp The trailer brake lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself.
or
X Visit a qualified specialist workshop. b
Rear left indica‐
tor or Rear right
indicator The rear left-hand or rear right-hand turn signal is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 112).
or
X Visit a qualified specialist workshop. b
Front left indica‐
tor or Front right
indicator The front left-hand or front right-hand turn signal is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 112).
or
X Visit a qualified specialist workshop. b
Left
mirror indica‐
tor or Right mir‐
ror indicator The turn signal in the left-hand or right-hand exterior mirror is
faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 112).
or
X Visit a qualified specialist workshop. b
Third brake lamp The third brake lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 112).
or
X Visit a qualified specialist workshop. b
Left brake lamp
 or 
Right brake lamp The left or right-hand brake lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 112).
or
X Visit a qualified specialist workshop.240
Display messages
On-board computer and displays