2012 MERCEDES-BENZ E-Class COUPE ignition

Fuel gauge ....................................... 27
Important safety notes ..................342
Premium-grade unleaded gasoline . 342
Problem (malfunction) ...................158
Refueling ........................................ 155
Specifications ................................ 343
Tank content/reserve fuel .............342
Fuel filler flap, opening/closing ....... 156
Fuel level Calling up the range (on-board
computer) ...................................... 201
Fuel tank
Capacity ........................................ 342
Problem (malfunction) ...................158
Fuse allocation chart (vehicle tool
kit) ...................................................... 290
Fuses Allocation chart ............................. 303
Before changing ............................. 303
Dashboard fuse box .......................303
Fuse box in the engine
compartment ................................. 304
Fuse box in the trunk .....................304
Important safety notes ..................303
G
Garage door opener Clearing the memory .....................270
Notes ............................................. 267
Opening/closing the garage door ..270
Programming (button in the rear-
view mirror) ................................... 268
Gasoline ............................................. 156
Gear or selector lever (cleaning
guidelines) ......................................... 286
Genuine Mercedes-Benz parts ......... 338
Glove box ........................................... 252
H
Handbrake see Parking brake
Hazard warning lamps ...................... 119
Head bags ............................................ 41
Head bags ........................................ 41
Headlamp cleaning system
Notes ............................................. 346
Headlamps
Adding fluid to cleaning system .....277
Cleaning system (function) ............119
Fogging up ..................................... 121
see Automatic headlamp mode
Head level heating (AIRSCARF) ........ 108
Head restraint Lowering manually (rear) ...............105
Head restraints
Adjusting ....................................... 105
Adjusting (electrically) ...................105
Adjusting (rear) .............................. 105
see NECK-PRO head restraints
Heating
see Climate control
High-beam headlamps
Changing bulbs .............................. 124
Display message ............................ 223
Switching Adaptive Highbeam
Assist on/off ................................. 120
Switching on/off ........................... 119
Hill start assist .................................. 147
HOLD function Display message ............................ 228
Function/notes ............................. 176
Hood
Closing ........................................... 275
Display message ............................ 237
Opening ......................................... 274
Hydroplaning ..................................... 163
I
Ignition lock see Key positions
Immobilizer .......................................... 67
Indicator lamps see Warning and indicator lamps
Indicators
see Turn signals
Instrument cluster
Overview .......................................... 27
Settings ......................................... 208
Warning and indicator lamps ...........28
Instrument cluster lighting ................ 27
Instrument lighting see Instrument cluster lighting
10Index

Mechanical key ................................ 73
Positions (ignition lock) .................145
Problem (malfunction) .....................76
Starting the engine ........................146
Snow chains ...................................... 311
Sockets Center console .............................. 261
Points to observe before use .........261
Rear compartment .........................261
Soft top
AIRCAP ............................................ 94
Cleaning ......................................... 282
Closing manually in an emergency ... 88
Display message ............................ 238
Important safety notes ....................86
Installing/removing the AIRCAP
wind screen ..................................... 95
Opening/closing (with key) .............. 88
Opening/closing (with soft-top
switch) ............................................. 87
Problem (malfunction) .....................97
Relocking ......................................... 93
wind screen ..................................... 93
Soft-top switch .................................... 87
Spare wheel Notes/data .................................... 335
Storage location ............................ 290
see Emergency spare wheel
Specialist workshop ............................ 23
Speed, controlling see Cruise control
Speedometer
Digital ............................................ 201
In the Instrument cluster .................27
Segments ...................................... 197
Selecting the unit of
measurement ................................ 208
see Instrument cluster
SRS (Supplemental Restraint
System) Display message ............................ 218
Introduction ..................................... 36
Warning lamp ................................. 244
Warning lamp (function) ................... 36
Standing lamps
Changing bulbs .............................. 125
Display message ............................ 224
Switching on/off ........................... 116Starting (engine) ................................ 146
Station see Radio
Steering (display message) .............. 237
Steering wheel Adjusting (electrically) ...................109
Button overview ............................... 29
Buttons (on-board
computer) ...................................... 197
Cleaning ......................................... 286
Important safety notes ..................109
Paddle shifters ............................... 152
Storing settings (memory
function) ........................................ 113
Steering wheel paddle shifters ........ 152
Stowage compartments Armrest (under) ............................. 253
Cup holders ................................... 257
Glove box ....................................... 252
Important safety information .........252
Parcel net ...................................... 253
Stowage well beneath the trunk
floor .................................................... 256
Summer opening see Convenience opening feature
Summer tires ..................................... 310
Sun visor ............................................ 258
Supplemental Restraint System see SRS (Supplemental Restraint
System)
Surround lighting (on-board
computer) .......................................... 209
Switching air-recirculation mode
on/off ................................................. 139
Switching off the alarm (ATA) ............ 67
T
Tachometer ........................................ 197
Tail lamps Display message ............................ 223
Tank
see Fuel tank
Tank content
Fuel gauge ....................................... 27
16Index

CockpitiIllustration: CoupeFunctionPage:Steering wheel paddle
shifters
152
;Cruise control lever164=Instrument cluster27?HornAPARKTRONIC warning
display
178
BOverhead control panel32CClimate control systems130DIgnition lock145Start/Stop button145FunctionPageEAdjusts the steering wheel
electrically
109
FCombination switch119GParking brake159HOn-board diagnostics
socketIOpens the hood274JReleases the parking brake159KLight switch11626CockpitAt a glance

Useful information
i This Operator's Manual describes all
models and all standard and optional
equipment of your vehicle available at the
time of publication of the Operator's
Manual. Country-specific differences are
possible. Please note that your vehicle may
not be equipped with all features
described. This also applies to safety-
related systems and functions.
i Please read the information on qualified
specialist workshops ( Y page 23).
Occupant safety
Overview of occupant safety
In this section, you will learn the most
important facts about the restraint system
components of the vehicle.
The restraint system consists of:
R seat belts
R child restraint systems
R LATCH-type (ISOFIX) child seat anchors
Additional protection is provided by:
R SRS (Supplemental Restraint System)
R NECK-PRO head restraints
R PRE-SAFE ®
R Cabriolet: roll bar
R Air bag system components with:
- PASSENGER AIR BAG OFF indicator lamp
- front-passenger seat with Occupant
Classification System (OCS)
The different air bag systems work
independently of each other. The protective
functions of the system work in conjunction
with each other. Not all air bags are deployed
in an accident.
GWARNING
Modifications to or work improperly
conducted on restraint system components
or their wiring, as well as tampering with
interconnected electronic systems, can lead
to the restraint systems no longer functioning
as intended.
Air bags or Emergency Tensioning Devices
(ETDs), for example, could deploy
inadvertently or fail to deploy in accidents
although the deceleration threshold for air
bag deployment is exceeded. Therefore,
never modify the restraint systems. Do not
tamper with electronic components or their
software.
i See "Children in the vehicle"
( Y page 55) for more information on
infants and children traveling with you in
the vehicle and restraints for infants and
children.
SRS (Supplemental Restraint System)
Introduction
SRS consists of:
R the 6 SRS warning lamp
R air bags
R air bag control unit (with crash sensors)
R Emergency Tensioning Devices
R belt force limiters
SRS reduces the risk of occupants coming
into contact with the vehicle's interior in the
event of an accident. It can also reduce the
effect of the forces to which occupants are
subjected during an accident.
SRS warning lamp
SRS functions are checked regularly when
you switch on the ignition and when the
engine is running. Therefore, malfunctions
can be detected in good time.
The 6 SRS warning lamp in the instrument
cluster lights up when the ignition is switched
on. It goes out no later than a few seconds
after the engine is started.
36Occupant safetySafety

If the SmartKey has been removed from the
ignition lock or is in position 0, indicator lamp
45 : does not light up.GWARNING
If the red 6 SRS warning lamp in the
instrument cluster and the 45
indicator lamp light up simultaneously, the
OCS is malfunctioning. The front passenger
front air bag will be deactivated in this case.
Have the system checked by qualified
technicians as soon as possible. Contact an
authorized Mercedes-Benz Center.
Only have the seat repaired or replaced at an
authorized Mercedes-Benz Center.
In order to ensure proper operation of the air
bag system and OCS:
R Sit with the seat belt properly fastened in a
position that is as upright as possible with
your back against the seat backrest.
R When seated, a passenger should not
position him/herself in such a way as to
cause the passenger's weight to be lifted
from the seat cushion as this may result in
the OCS being unable to correctly
approximate the passenger's weight
category.
R Read and observe all warnings in this
chapter.
System self-test
The 45 indicator lamp illuminates
when you:
R turn the SmartKey to position 1 or 2 in the
ignition lock
R on vehicles with KEYLESS-GO, press the
Start/Stop button once or twice
If an adult occupant is properly sitting on the
passenger seat and the OCS classifies the
occupant as an adult, the 45 indicator
lamp illuminates and goes out again after
approximately 6 seconds.
If the seat is not occupied and the OCS
classifies the front passenger seat as being
unoccupied, the 45 indicator lamp
will illuminate and not go out.GWARNING
If the 4 5 indicator lamp does not
illuminate, the system is not functioning. You
must contact an authorized Mercedes-Benz
Center before seating any child on the front
passenger seat.
For more information, see "Problems with the
Occupant Classification System"
( Y page 47).
GWARNING
Never place anything between seat cushion
and child seat (e.g. a pillow), since it reduces
the effectiveness of the OCS. The underside
and rear side child restraint system must be
placed entirely on the seat cushion and the
backrest of the front-passenger seat
backrest.
If necessary, adjust the tilt of the passenger
seat backrest.
An incorrectly mounted child seat could cause
injuries to the child in case of an accident,
instead of increasing protection for the child.
Follow the manufacturer's instructions for
installation of child restraint systems.
46Occupant safetySafety

GWARNING
Do not pass seat belts over sharp edges. They
could tear.
Do not allow the seat belt to get caught in the
door or in the seat adjustment mechanism.
This could damage the seat belt.
Never attempt to make modifications to seat
belts. This could impair the effectiveness of
the seat belts.
Fastening seat belts
GWARNING
According to accident statistics, children are
safer when properly restrained on the rear
seats than on the front-passenger seat. Thus,
we strongly recommend that children be
placed in the rear seat whenever possible.
Regardless of seating position, children 12
years old and under must be seated and
properly secured in an appropriately sized
child restraint system or booster seat
recommended for the size and weight of the
child. For additional information, see the
"Children in the vehicle" section.
A child's risk of serious or fatal injuries is
significantly increased if the child restraints
are not properly secured in the vehicle and/
or the child is not properly secured in the child
restraint.
The seat-belt extender for the driver and front
passenger helps you fasten your seat belt.
Example: Coupe
Seat-belt extender : is extended when the
respective door is closed and the SmartKey
is turned to position 1 or 2 in the ignition lock.
You can also extend seat-belt extender : by
using the seat-belt extender button in the
center console.XPress the seat-belt extender button.
Seat-belt extender : extends.GWARNING
Seat belt presenter : must be retracted
while the vehicle is in motion. Only when seat
belt presenter : is retracted can the seat
belt be properly positioned on the body and
protect the occupant as intended.
Seat-belt extender : is retracted again if:
R the belt tongue is engaged in the seat belt
buckle.
R the belt tongue is not engaged in the seat
belt buckle within 60 seconds.
R the respective door is opened.
R the SmartKey is turned to position 0 in the
ignition lock.
R you release the seat backrest and fold it
forwards.
R nobody is sitting on the front-passenger
side after approximately five seconds.
If you press the seat-belt extender button
after this, seat-belt extender : will not
extend.
52Occupant safetySafety

Example: Coupe
XAdjust the seat and move the backrest to
an almost vertical position ( Y page 102).XPull the seat belt smoothly out of seat-belt
extender :.XWithout twisting it, guide the shoulder
section of the seat belt across the middle
of your shoulder and the lap section across
your hips.XEngage belt tongue ; in buckle =.
Seat-belt adjustment: if necessary, the
driver's and front-passenger seat belts
automatically adjust to the upper body
( Y page 53).XIf necessary, pull upwards on the shoulder
section of the seat belt to tighten the belt
across your body.
All seat belts except the driver's seat belt are
equipped with a special seat belt retractor to
securely fasten child restraint systems in the
vehicle. For further information on special
seat belt retractors, see ( Y page 57).
For more information about releasing the seat
belt with release button ?, see "Releasing
seat belts" ( Y page 53).
Seat belt adjustment
The seat-belt adjustment function adjusts the
driver's and front-passenger seat belt to the
upper body of the occupants.
The belt strap is tightened slightly when:
R you engage the belt tongue in the belt
buckle and you then turn the SmartKey to
position 2 in the ignition lock.
R the SmartKey is in position 2 in the ignition
lock and you then engage the belt tongue
in the buckle once the seat-belt extender
has retracted.
The seat-belt adjustment will apply a
retraction force if any slack is detected
between the occupant and the seat belt. Do
not hold on to the seat belt tightly while it is
adjusting. You can switch the seat-belt
adjustment on and off in the on-board
computer ( Y page 211).
The seat-belt adjustment is an integral part of
the PRE-SAFE ®
convenience function. More
information about PRE-SAFE ®
can be found
in the "PRE-SAFE ®
(preventative occupant
protection)" section ( Y page 48).
Releasing seat belts
XPress release button ? (Y page 52) and
guide belt tongue ; back towards seat
belt extender :.
!
Make sure that the seat belt is fully rolled
up. Otherwise, the seat belt or belt tongue
will be trapped in the door or in the seat
mechanism. This could damage the door,
the door trim panel and the seat belt.
Damaged seat belts can no longer fulfill
their protective function and must be
replaced. Consult an authorized Mercedes-
Benz Center.
Belt warning for the driver and front
passenger
Regardless of whether the driver and front
passenger have fastened their seat belts
already, the 7 seat belt warning lamp
Occupant safety53SafetyZ

lights up for 6 seconds after every engine
start. It then goes out if the driver and the
front passenger have fastened their seat
belts.
If the driver's seat belt is not fastened after
the engine is started, an additional warning
tone will sound. The warning tone goes out
after approximately six seconds or once the
driver's seat belt is fastened.
If the driver or front passenger have not
fastened their seat belt after 6 seconds and
the doors are closed, the 7 seat belt
warning lamp lights up.
R until the driver or the front passenger have
fastened their seat belts
R if a vehicle speed of 15 mph(25 km/h) is
exceeded once, a warning tone with
increasing intensity sounds additionally for
a maximum of 60 seconds or until the driver
or front passenger have fastened their seat
belts.
If the driver or front passenger undo their seat
belts during the journey, the 7 seat belt
warning lamp lights up and the warning tone
sounds again.
The warning tone ceases even if the driver or
front passenger have still not fastened their
seat belt after 60 seconds. The 7 seat belt
warning lamp stops flashing but continues to
be lit.
Once the vehicle is stationary, the warning
tone is reactivated and the 7 seat belt
warning lamp starts to flash again if the
vehicle speed exceeds 15 mph(25 km/h)
once.
The 7 seat belt warning lamp only goes
out if:
R both the driver and the front passenger
have fastened their seat belts.
or
R the vehicle is stationary and a door is open.
i For more information on the 7 seat
belt warning lamp, see "Warning and
indicator lamps in the instrument cluster,
seat belt" ( Y page 240).Emergency Tensioning Devices, belt
force limiters
The seat belts are equipped with ETDs and
seat belt force limiters.
The ETDs tighten the seat belts in an accident,
pulling them close against the body.
The ETDs do not correct incorrect seat
positions or incorrectly fastened seat belts.
The ETDs do not pull vehicle occupants back
towards the backrest.
Seat belt force limiters, when triggered, help
to reduce the peak force exerted by the seat
belt on the vehicle occupant.
The seat belt force limiters for the front seats
are synchronized with the front air bags.
These take on a part of the deceleration force.
Thus, the force exerted on the occupant is
distributed over a greater area.
The ETDs can only be activated when:
R the ignition is switched on.
R the restraint systems are operational; see
"SRS warning lamp" ( Y page 36).
R the belt tongue is engaged in the buckle on
each of the lap-shoulder belts in the front.
R the front-passenger seat is occupied and
the belt tongue is engaged in the buckle on
the front-passenger side.
The ETDs on the seats in the rear
compartment are triggered independently of
the lock status of the seat belts.
The ETDs are triggered depending on the type
and severity of an accident:
R if, in the event of a head-on or rear-end
collision, the vehicle decelerates or
accelerates rapidly in a longitudinal
direction during the initial stages of the
impact
R if, in the event of a side impact, on the side
opposite the impact the vehicle
decelerates or accelerates rapidly in a
lateral direction
R Cabriolet: in certain situations if the vehicle
overturns and the system determines that
it can provide additional protection
54Occupant safetySafety