2012 MERCEDES-BENZ S-CLASS SEDAN Owners Manual

The integrated garage door opener is
compatible with devices that have units
which operate in the frequency range of
280 to 390MHz.
R Replace the batteries in garage door
remote control A. This increases the
likelihood that garage door remote control
A will transmit a strong and precise signal
to the integrated garage door opener in the
rear-view mirror.
R When programming, hold remote control
A at varying distances and angles from the
button that you are programming. Try
various angles at a distance between
2 and 12 inches (5 to 30 cm) or at the same
angle but at varying distances.
R If another remote control for the same
garage door drive is available, repeat the
same programming steps with this remote
control. Before performing these steps,
make sure that new batteries have been
installed in garage door drive remote
control A.
R Note that some remote controls only
transmit for a limited amount of time (the
indicator lamp on the remote control goes
out). Press button B on remote control
A again before transmission ends.
R Align the antenna cable of the garage door
opener unit. This can improve signal
reception/transmission.
Opening/closing the garage door
After it has been programmed, the integrated
garage door opener performs the function of
the garage door system remote control.
Please also read the operating instructions
for the garage door system.
XTurn the SmartKey to position 2 in the
ignition lock.XPress button ;, = or ? that you have
programmed to operate the garage door.
Garage door system with a fixed code:
indicator lamp : lights up green.Garage door system with a rolling code:
indicator lamp : flashes green.
i
The transmitter will transmit a signal for
as long as the button is pressed. The
transmission is halted after a maximum of
ten seconds and indicator lamp : flashes
yellow. Press button ;, = or ? again if
necessary.
Clearing the memory of the integrated
garage door opener on the rear-view
mirror
XTurn the SmartKey to position 2 in the
ignition lock.XPress buttons ; and ?.
The indicator lamp lights up yellow.XPress and hold buttons ; and ? until the
indicator lamp turns green.
i Make sure that you clear the memory of
the integrated garage door opener before
selling the vehicle.
Floormat on the driver's side
GWARNING
Whenever you are using a floormat, make sure
there is enough clearance and that the
floormat is securely fastened.
The floormat should always be securely
fastened using the fastening equipment.
Before driving off, check that the floormat is
securely in place and adjust it if necessary. A
loose floormat could slip and hinder proper
functioning of the pedals.
Do not place several floormats on top of each
other as this may impair pedal movement.
Features455Stowage and featuresZ

XSlide the seat backwards.XTo install: place the floormat in the
footwell.XPress studs : onto retainers ;.XTo remove: pull the floormat off
retainers ;.XRemove the floormat.
Infrared reflective windshield
The infrared reflecting glass prevents the
vehicle interior from becoming too hot. It also
blocks radio waves up into the gigahertz
range.
Vehicles without Night View Assist Plus
:Areas permeable to radio waves (to the
left and right of the rain sensor cover);Rain sensor cover=Areas permeable to radio waves
Vehicles with Night View Assist Plus
:Area permeable to radio waves (to the left
of the rain sensor cover);Rain sensor cover=Areas permeable to radio waves
In order to operate radio-controlled
equipment, e.g. toll recording systems,
areas : or = on the windshield are
permeable to radio waves. In these areas, you
can install radio-controlled systems.
These areas can best be seen from outside
the vehicle by observing the light reflected off
the windshield.
456FeaturesStowage and features

Useful information ............................458
Engine compartment ........................458
Maintenance ...................................... 465
Care .................................................... 466457Maintenance and care

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 31).
Engine compartment
Hood
Opening the hood
GWARNING
Do not pull the release lever while the vehicle
is in motion. Otherwise, the hood could be
forced open by passing air flow.
This could cause the hood to come loose and
injure you and/or others.
GWARNING
Hybrid vehicles: be sure to read the "HYBRID"
supplement. Otherwise, you could fail to
recognize dangers.
GWARNING
Do not open the hood when the engine is
overheated. You could be seriously injured.
Observe the coolant temperature gauge to
determine whether the engine may be
overheated. If you see flames or smoke
coming from the engine compartment, move
away from the vehicle. Wait until the engine
has cooled. If necessary, call the fire
department.
GWARNING
There is a risk of injury if the hood is open,
even if the engine is not running.
Some engine components can become very
hot.
To avoid the risk of burns, only touch those
components described in the Operator's
Manual and observe the relevant safety notes.GWARNING
To avoid injury, stay clear of moving parts
when the hood is open and the engine is
running.
The radiator fan may continue to run for
approximately 30seconds or may even restart
after the engine has been switched off. For
this reason, you must not reach into the fan
rotation area.
GWARNING
Vehicles with gasoline engine:
The engine is equipped with a transistorized
ignition system. Because of the high voltage
it is dangerous to touch any components
(ignition coils, spark plug sockets, diagnostic
socket) of the ignition system
R with the engine running
R while starting the engine
R when the ignition is switched on and the
engine is turned manually
GWARNING
Vehicles with diesel engine:
The engine is equipped with a high-voltage
electronic control unit for the injection
system. Because of the high voltage it is
dangerous to touch any components of the
injection system (injectors, electrical wires)
R with the engine running
R while starting the engine
R when the ignition is switched on
XMake sure that the windshield wipers are
switched off.GWARNING
The windshield wipers and wiper linkage
could be set in motion.
458Engine compartmentMaintenance and care

When the hood is open, you or others could
be injured by the wiper linkage.
Make sure that the windshield wipers are
switched off. Remove the SmartKey or make
sure that no ignition position has been
selected with KEYLESS-GO. All indicator
lamps must be off in the instrument panel.XPull release lever : for the hood.
The hood is released.
! Make sure that the windshield wipers are
not folded away from the windshield. You
could otherwise damage the windshield
wipers or the hood.
XPull hood catch handle ; outwards from
the radiator grill as far as it will go and lift
the hood from underneath by the radiator
grill.
Once you have lifted the hood about
15 inches (40cm), it is automatically
opened the rest of the way and held open
by the gas-filled struts.! Do not lift the hood by hood catch
handle ;. The handle may otherwise be
damaged.
Closing the hoodGWARNING
When closing the hood, use extreme caution
not to catch hands or fingers. Be careful that
you do not close the hood on anyone.
Make sure the hood is securely engaged
before driving off. Do not continue driving if
the hood can no longer engage after an
accident, for example. The hood could
otherwise come loose while the vehicle is in
motion and injure you and/or others.
XLower the hood and let it fall from a height
of approximately 8 inches (20cm).XCheck that the hood has engaged properly.
If the hood can be raised slightly, it is not
properly engaged. Open it again and close
it with a little more force.
Radiator
i Vehicles with a diesel engine: do not
cover the radiator, for example with a
winter front or bug cover. The readings of
the on-board-diagnostic system may
otherwise be inaccurate. Some of these
readings are required by law and must be
accurate at all times.
Engine oil
Notes on the oil level
GWARNING
Hybrid vehicles: be sure to read the "HYBRID"
supplement. Otherwise, you could fail to
recognize dangers.
Depending on the driving style, the vehicle
consumes up to 0.9 US qts (0.8 l) of oil over
a distance of 600 miles (1,000 km). The oil
Engine compartment459Maintenance and careZ

consumption may be higher than this when
the vehicle is new or if you frequently drive at
high engine speeds.
On vehicles with a 12-cylinder engine, the oil
level can be checked using the on-board
computer. On all other models, the oil
dipstick must be used to check the engine oil
level.
Depending on the engine, the oil dipstick may
be in a different location.
When checking the oil level:
R park the vehicle on a level surface.
R the engine should be switched off for
approximately five minutes if the engine is
at normal operating temperature.
R if the engine is not at normal operating
temperature, e.g. if the engine was only
started briefly: wait about 30 minutes
before carrying out the measurement.Checking the oil level using the oil
dipstick
Example: vehicles with a gasoline engine
Example: vehicles with 4MATIC
XPull oil dipstick : out of the dipstick guide
tube.XWipe off oil dipstick :.XSlowly slide oil dipstick : into the guide
tube to the stop, and take it out again.
If the level is between MIN mark = and
MAX mark ;, the oil level is correct.XIf the oil level is at or below MIN mark =,
add 0.55 US qt to 1.1 US qt ( 0.5 to 1.0 l) of
engine oil.
Checking the oil level using the on-
board computer
Measurement
XMake sure that the SmartKey is in position
2 in the ignition lock.XPress the ; or = button to select the
Service menu.460Engine compartmentMaintenance and care

XPress the : or 9 button to select
Engine Oil Level .XPress the a button.
The multifunction display shows the
following message: Measuring Engine
Oil Level Accurate Only When
Vehicle Is Level
i If you wish to cancel the measurement,
press the % button on the multifunction
steering wheel.
Engine compartment461Maintenance and careZ

Display messages
The measurement takes a few seconds. You will see one of the following messages in the
multifunction display:ProblemPossible causes/consequences and M SolutionsEngine Oil Level OKThe oil level is correct.Add 1.0 l Engine
Oil At Next
Refueling .The oil level is too low.Xadd 1.0 l of engine oil.Add 1.5 l Engine
Oil At Next
Refueling .The oil level is too low.Xadd 1.5 l of engine oil.Add 2.0 l Engine
Oil At Next
Refueling .The oil level is too low.Xadd 2.0 l of engine oil.Engine Oil Level
Reduce Oil LevelThe engine oil level is too high.XHave excess engine oil siphoned off.For Engine Oil
Level Ignition
Must be OnThe ignition is switched off.XTurn the SmartKey to position 2 in the ignition lock.Need More Time to
Check Engine Oil
LevelThe required waiting period was not observed.XIf the engine is at normal operating temperature: repeat the
measurement after about five minutes.
If the engine is not at normal operating temperature (e.g. if the
engine was only started briefly): repeat the measurement after
about 30 minutes.Engine Oil Level
Not When Engine OnThe engine is running; oil level measurement is not possible.XSwitch off the engine.XIf the engine is at normal operating temperature: wait about five
minutes before carrying out the measurement.
If the engine is not at normal operating temperature, e.g. if the
engine was only started briefly: wait approximately
30 minutes before carrying out the measurement.Adding engine oilGWARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts.462Engine compartmentMaintenance and care