2011 Mercedes-benz C Class Coupe Owners Manual

Cornering light function

The cornering light function improves the illumination of the road over a wide angle in the direction you are turning, enabling better visibility in tight bends, for example. It can only be activated when the low-beam headlamps are switched on.

Active: Rif you are driving at speeds below

25 mph (40 km/h) and switch on the turn signals or turn the steering wheel.

Rif you are driving at speeds between

25 mph (40 km/h) and 45 mph (70 km/h) or turn the steering wheel.

Not active: if you are driving at speeds above 25 mph (40 km/h) or switch off the turn signal or turn the steering wheel to the straight-ahead position. The cornering light function may remain lit for a short time, but is automatically switched off after no more than three minutes.

Adaptive Highbeam Assist You can use this function to set the headlamps to change between low beam and high beam automatically. The system recognizes vehicles with their lights on, either approaching from the opposite direction or traveling in front of your vehicle, and consequently switches the headlamps from high beam to low beam. The system automatically adapts the low- beam headlamp range depending on the distance to the other vehicle. Once the system no longer detects any other vehicles, it reactivates the high-beam headlamps. The system's optical sensor is located behind the windshield near the overhead control panel.

Exterior lighting 105

indicator lamp in the instrument cluster stays on.

X To deactivate: move the combination

switch back to its normal position. The _ indicator lamp in the instrument cluster goes out. G WARNING The Adaptive Highbeam Assist is only an aid intended to support you while driving. The driver is and remains responsible for proper vehicle lighting in accordance with the prevailing light, sight and traffic conditions. The system may be impaired or unavailable when Rvisibility is poor, e.g. due to snow, rain, fog,

or heavy spray

Rthe optical sensor area of the windshield is dirty, fogged up, or covered by a sticker for example

The system cannot recognize the following road users: RRoad users without a lighting system of

their own, e.g. pedestrians

RRoad users with dim lighting of their own,

e.g. cyclists

RRoad users whose lighting is obstructed,

e.g. road users behind a guardrail

RIn some seldom cases, even road users with

a lighting system of their own may be recognized too late or not at all.

The automatic high-beam headlamps will then not be deactivated or it will be activated in spite of preceding or oncoming road users. This could endanger you and/or others and cause an accident. Always pay close attention to the traffic situation and switch off the high beam manually if necessary.

Headlamps fogged up on the inside The headlamps may fog up on the inside if there is high atmospheric humidity.

X To activate: activate the Adaptive

Highbeam Assist function using the on- board computer (Y page 195).

X Turn the light switch to c or Ã. X Press the combination switch beyond the pressure point in the direction of arrow : (Y page 103). If it is dark and the light sensor activates the low-beam headlamps, the _ indicator lamp in the instrument cluster lights up. If you drive faster than approximately 28 mph (45 km/h): the headlamp range is set automatically depending on the distance between the vehicle and other road users. If you drive faster than approximately 35 mph (55 km/h) and no other road users are identified: the high-beam headlamps are switched on automatically. The K indicator lamp in the instrument cluster also lights up. When you drive slower than approximately 30 mph (45 km/h) or if other road users are identified or if the roads are sufficiently illuminated: the high-beam headlamps are switched off automatically. The K indicator lamp in the instrument cluster goes out. The _

106 Replacing bulbs

X Drive with the headlamps switched on.

The level of moisture diminishes, depending on the length of the journey and the weather conditions (humidity and temperature).

If the level of moisture does not diminish: X Have the headlamps checked at a qualified

specialist workshop.

Interior lighting Overview of interior lighting

: u Switches the rear interior lighting

on/off

; | Switches the automatic interior

lighting control on/off

= p Switches the right-hand front

reading lamp on/off

? c Switches the front interior lighting

on/off

A p Switches the left-hand front reading

lamp on/off

Interior lighting control Important notes In order to prevent the vehicle's battery from discharging, the interior lighting functions are automatically deactivated after some time except for when the SmartKey is in position 2 in the ignition lock.

Automatic interior lighting control X To switch on/off: press the | button.

When the automatic interior lighting control is activated, the button is flush with the overhead control panel.

The interior lighting automatically switches on if you: Runlock the vehicle Ropen a door Rremove the SmartKey from the ignition lock The interior light is activated for a short while when the SmartKey is removed from the ignition lock. You can activate this delayed switch-off using the on-board computer (Y page 196).

Manual interior lighting control X To switch the interior lighting on/off:

press the c button.

X To switch the reading lamps on/off:

press the p button.

Crash-responsive emergency lighting The interior lighting is activated automatically if the vehicle is involved in an accident. X To switch off the crash-responsive emergency lighting: press the hazard warning lamp button.

or X Lock and then unlock the vehicle using the

SmartKey.

Replacing bulbs Important safety notes Xenon bulbs If your vehicle is equipped with Xenon bulbs, you can recognize this by the following: the cone of light from the Xenon bulbs moves from the top to the bottom and back again when you start the engine. For this to be

Replacing bulbs

107

observed, the lights must be switched on before starting the engine. G DANGER Xenon bulbs carry a high voltage. You could get an electric shock and be seriously or even fatally injured if you touch the electric contacts on Xenon bulbs. Therefore, never remove the cover from Xenon bulbs. Do not change Xenon bulbs yourself, but have them replaced at a qualified specialist workshop which has the necessary specialist knowledge and tools to carry out the work required. Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop.

Bulbs and lamps are an important aspect of vehicle safety. You must therefore make sure that these function correctly at all times. Have the headlamp setting checked regularly.

Other bulbs There are bulbs other than the Xenon bulbs that you cannot replace. Replace only the bulbs listed (Y page 107). Have the bulbs that you cannot replace yourself changed at a qualified specialist workshop. Mercedes-Benz recommends that you use an authorized Mercedes-Benz Center for this purpose. In particular, work relevant to safety or on safety-related systems must be carried out at a qualified specialist workshop. If you require assistance changing bulbs, consult a qualified specialist workshop. Do not touch the glass tube of new bulbs with your bare hands. Even minor contamination can burn into the glass surface and reduce the service life of the bulbs. Always use a lint- free cloth or only touch the base of the bulb when installing. Only use bulbs of the correct type.

If the new bulb still does not light up, consult a qualified specialist workshop. Bulbs and lamps are an important aspect of vehicle safety. You must therefore make sure that these function correctly at all times. Have the headlamp setting checked regularly. G WARNING Bulbs and lamps can be very hot. You should therefore allow them to cool down before you change them. Otherwise, you could be burned if you touch them. Keep bulbs out of the reach of children. Otherwise, they could damage the bulbs, for example, and injure themselves. Never use a bulb which has been dropped. Such a bulb may break or even explode and injure you. Halogen bulbs are pressurized and can explode when you change them, particularly if they are very hot. You should therefore wear eye protection and gloves when you are changing them.

Overview: changing bulbs/bulb types You can change the following bulbs. The bulb type can be found in the legend.

Halogen headlamps : Parking lamp/standing lamp: W 5 W ; High-beam headlamp: H7 55 W = Low-beam headlamp: H7 55 W

108 Replacing bulbs

X Turn housing cover : counter-clockwise

and pull it out.

X Turn bulb holder ; counter-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

clockwise until it engages.

High-beam headlamps (halogen headlamps)

X Switch off the lights. X Open the hood. X Turn housing cover : counter-clockwise

and pull it out.

X Turn bulb holder ; counter-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

clockwise until it engages.

Bi-Xenon headlamps : Cornering lamp: H7 55 W

Tail lamp : Backup lamp: P 21 W ; Brake lamp: P 21 W = Brake lamp/tail lamp: P 21 W

Changing the front bulbs Low-beam headlamps (halogen headlamps)

X Switch off the lights. X Open the hood.

Replacing bulbs

109

Parking lamps/standing lamps (halogen headlamps)

X Switch off the lights. X Open the hood. X Turn housing cover : counter-clockwise

and pull it out.

X Pull out bulb holder ;. X Take the bulb out of bulb holder ;. X Insert the new bulb into bulb holder ;. X Insert bulb holder ;. X Align housing cover : and turn it

clockwise until it engages.

Cornering light function (Bi-Xenon headlamps)

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

clockwise until it engages.

Changing the rear bulbs Opening and closing the side trim panels You must open the side trim panel in the trunk and remove the first-aid kit before you can change the bulbs in the tail lamps.

Example: right-hand side trim panel X To open: loosen side trim panel : at the top and fold it down in the direction of the arrow.

X To close: insert side panel :.

X Switch off the lights. X Open the hood. X Turn housing cover : counter-clockwise

and pull it out.

X Turn bulb holder ; counter-clockwise and

pull it out.

Left-hand side trim panel (vehicles with a sound system or trailer coupling)

110 Windshield wipers

X To open: turn rotary catch :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 direction to the arrow.

Tail lamp X Switch off the lights. X Open the trunk. X Open the side trim panel (Y page 109).

X Press the respective bulb :, ; or = back and turn it counter-clockwise to remove it from the bulb holder.

X Insert the new bulb into the bulb holder and

turn it clockwise.

X Reinsert the connector for LED light

functions in the bulb holder.

X Insert the bulb holder again and lock it in

place.

X Insert the tail lamp connector. X Close the side trim panel (Y page 109).

Windshield wipers Switching the windshield wipers on/ off G WARNING Wiper blades are components that are subject to wear and tear. Replace the wiper blades twice a year, preferably in the spring and fall. Otherwise the windshield will not be wiped properly. As a result, you may not be able to observe surrounding traffic conditions and could cause an accident.

! Do not operate the windshield wipers when the windshield is dry, as this could damage the wiper blades. Moreover, dust that has collected on the windshield can scratch the glass if wiping takes place when the windshield is dry.

! If the windshield wipers leave smears on the windshield after the vehicle has been washed in an automatic car wash, wax or other residues may be the reason for this. Clean the windshield using washer fluid after washing the vehicle in an automatic car wash.

X Remove the tail lamp connector X Simultaneously press retaining lugs : in the direction of the arrow and slightly pull out the bulb holder with the bulbs. X Remove the connector for LED light

functions from the top of the bulb holder.

X Pull the bulb holder out with the bulbs.

: Backup lamp ; Brake lamp = Parking lamp/brake lamp

Windshield wipers

111

Replacing the wiper blades Important safety notes G WARNING For safety reasons, switch off the windshield wipers and remove the key from the ignition lock before changing the wiper blades (vehicles with KEYLESS-GO: make sure that the on-board electronics are in state 0). Otherwise, the wiper motor could be switched on suddenly and cause injury.

! To avoid damaging the wiper blades,

make sure that you touch only the wiper arm of the wiper.

! Never open the hood if a windshield wiper

arm has been folded away from the windshield. Never fold a windshield wiper arm without a wiper blade back onto the windshield. Hold the windshield wiper arm firmly when you change the wiper blade. If you release the windshield wiper arm without a wiper blade and it falls onto the windshield, the windshield may be damaged by the force of the impact. Mercedes-Benz recommends that you have the wiper blades replaced by a qualified specialist workshop, e.g. at an authorized Mercedes-Benz Center.

Replacing the wiper blades Removing the wiper blades X Remove the SmartKey from the ignition

lock or turn it to position 0 (KEYLESS-GO).

X Fold the wiper arm away from the

windshield until it engages.

X Set the wiper blade at right angles to the

wiper arm.

Combination switch 1 $ Windshield wipers off 2 Ä Intermittent wipe, low6
3 Å Intermittent wipe, high7
4 ° Continuous wipe, slow 5 ¯ Continuous wipe, fast B í Single wipe/ î To wipe the

windshield using washer fluid

X Switch on the ignition. X Turn the combination switch to the

corresponding position.

! Intermittent wiping with rain sensor: due

to optical influences and the windshield becoming dirty in dry weather conditions, the windshield wipers may be activated inadvertently. This could then damage the windshield wiper blades or scratch the windshield. For this reason, you should always switch off the windshield wipers in dry weather.

In the Ä or Å position, the appropriate wiping frequency is set automatically according to the intensity of the rain. In the Å position, the rain sensor is more sensitive than in the Ä position, causing the windshield wipers to wipe more frequently.

6 Rain sensor set to low sensitivity. 7 Rain sensor set to high sensitivity.

112 Windshield wipers

X Select another wiper speed on the

combination switch.

X Have the windshield wipers checked at a

qualified specialist workshop.

The spray nozzles are misaligned The windshield washer fluid from the spray nozzles no longer hits the center of the windshield. The spray nozzles are misaligned. X Have the spray nozzles adjusted at a

qualified specialist workshop.

X Remove the wiper blade from the retaining pin on the wiper arm in the direction of the arrow.

Installing the wiper blades X Push the new wiper blade onto the retaining pin on the wiper arm in the opposite direction to the arrow. Make sure that the wiper blade slides fully onto the retaining pin on the wiper arm. X Turn the wiper blade parallel to the wiper

arm.

X Fold the wiper arm back onto the

windshield.

Problems with the windshield wipers The windshield wipers are obstructed Leaves or snow, for example, may be obstructing the windshield wiper movement. The wiper motor has been deactivated. X For safety reasons, you should remove the

SmartKey from the ignition lock.

or X Switch off the engine using the Start/Stop

button and open the driver's door.

X Remove the cause of the obstruction. X Switch the windshield wipers back on.

The windshield wipers are inoperative The windshield wiper drive is malfunctioning.

Useful information ............................ 114
Overview of climate control sys- tems ................................................... 114
Operating the climate control sys- tem ..................................................... 117
Setting the air vents ......................... 120

113

114 Overview of climate control systems

convenience opening feature (Y page 82). This will speed up the cooling process and the desired vehicle interior temperature will be reached more quickly.

i The integrated filter can filter out most

particles of dust and completely filters out pollen. A clogged filter reduces the amount of air supplied to the vehicle interior. For this reason, you should always observe the interval for replacing the filter, which is specified in the Service Booklet. As it depends on environmental conditions, e.g. heavy air pollution, the interval may be shorter than stated in the Service Booklet.

i It is possible that the residual heat

function may be activated automatically an hour after the SmartKey is removed. The vehicle is then ventilated for 30 minutes to dry the air-conditioning system.

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).

Overview of climate control systems Important safety notes G WARNING Severe conditions (e.g. strong air pollution) may require replacement of the filter before its scheduled replacement interval. A clogged filter will reduce the air volume to the interior and the windows could fog up, impairing visibility and endangering you and others. Have a blocked filter replaced at a Mercedes- Benz Center as soon as possible. G WARNING Follow the recommended settings for heating and cooling given on the following pages. Otherwise, the windows could fog up, impairing visibility and endangering you and others.

Automatic climate control controls the temperature and the humidity in the vehicle interior and filters undesirable substances from the air. Automatic climate control is only operational when the engine is running. Optimum operation is only achieved if you drive with the side windows and panorama roof with power tilt/sliding panel closed. i Ventilate the vehicle for a brief period

during warm weather, e.g. using the

Overview of climate control systems

115

Control panel for dual-zone automatic climate control

Canada only : To set the temperature, left (Y page 118) ; To defrost the windshield (Y page 119) = To switch the ZONE function on/off (Y page 118) ? To activate/deactivate cooling with air dehumidification (Y page 117) A To switch the rear window defroster on/off (Y page 120) B To set the temperature, right (Y page 118) C To activate/deactivate air-recirculation mode (Y page 120) D To set the air distribution (Y page 118) E To increase the airflow (Y page 118) F To reduce the airflow (Y page 118) G To switch climate control on/off (Y page 117) H To set climate control to automatic (Y page 117)

116 Overview of climate control systems

USA only : To set the temperature, left (Y page 118) ; To defrost the windshield (Y page 119) = To switch maximum cooling MAX COOL on/off (Y page 119) ? To activate/deactivate cooling with air dehumidification (Y page 117) A To switch the rear window defroster on/off (Y page 120) B To set the temperature, right (Y page 118) C To activate/deactivate air-recirculation mode (Y page 120) D To set the air distribution (Y page 118) E To increase the airflow (Y page 118) F To reduce the airflow (Y page 118) G To switch climate control on/off (Y page 117) H To set climate control to automatic (Y page 117)

or when in a tunnel. The windows could otherwise fog up as, in air-recirculation mode, no fresh air is drawn into the vehicle.

RUse the ZONE function to adopt the

temperature settings on the driver's side for the front-passenger side as well. The indicator lamp in the á button goes out.

Notes on using dual-zone automatic climate control The following contains notes and recommendations on optimum use of dual- zone automatic climate control. RActivate climate control using the à and

¿ buttons. The indicator lamps in the à and ¿ buttons light up.

RSet the temperature to 72 ‡ (22 †). ROnly use the "defrosting" function briefly

until the windshield is clear again.

ROnly use "air-recirculation" mode briefly, e.g. if there are unpleasant outside odors

Operating the climate control system 117

Operating the climate control system Activating/deactivating climate control Important information G WARNING When the climate control system is deactivated, the outside air supply and circulation are also deactivated. Only choose this setting for a short time. Otherwise the windows could fog up, impairing visibility and endangering you and others.

i Switch on climate control primarily using

the à button (Y page 117).

G WARNING If you switch off the cooling function, the vehicle will not be cooled when weather conditions are warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others.

Condensation may drip from the underside of the vehicle when it is in cooling mode. This is normal and not a sign that there is a malfunction. i The cooling with air dehumidification function uses refrigerant R134a. This coolant does not contain chlorofluorocarbons, and therefore does not damage the ozone layer.

Activating/deactivating X Turn the SmartKey to position 2 in the

ignition lock.

X To switch on: press the à button.

The indicator lamp in the à button lights up. Airflow and air distribution are set to automatic mode.

or X Press the ^ button.

The indicator lamp in the ^ button goes out. The previously selected settings come into effect again.

X To switch off: press the ^ button.

The indicator lamp in the ^ button lights up.

Activating/deactivating the cooling with air dehumidification function Important information The cooling with air dehumidification function is only available when the engine is running. The air inside the vehicle is cooled and dehumidified according to the temperature selected.

Activating/deactivating X To activate: press the ¿ button.

The indicator lamp in the ¿ button lights up.

X To switch off: press the ¿ button.

The indicator lamp in the ¿ button goes out. The cooling with air dehumidification function has a delayed switch-off feature.

Problems with the cooling with air dehumidification function When you press the ¿ button, the indicator lamp in the button flashes three times or remains off. You can no longer switch on the cooling with air dehumidification function. X Consult a qualified specialist workshop.

Setting climate control to automatic G WARNING If you switch off the cooling function, the vehicle will not be cooled when weather conditions are warm. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others.

118 Operating the climate control system

In automatic mode, the set temperature is maintained automatically at a constant level. The system automatically regulates the temperature of the dispensed air, the airflow and the air distribution. Automatic mode will achieve optimal operation if cooling with air dehumidification is also activated. If desired, cooling with air dehumidification can be deactivated. X Turn the SmartKey to position 2 in the

ignition lock.

X Set the desired temperature. X To activate: press the à button.

The indicator lamp in the à button lights up. Automatic air distribution and airflow are activated.

X To switch off: press the _ button. or X Press the K or I button.

The indicator lamp in the à button goes out. Automatic air distribution and airflow are deactivated.

Setting the temperature Different temperatures can be set for the driver's and front-passenger sides. X Turn the SmartKey to position 2 in the

ignition lock.

X To increase/reduce: turn controls : and

B clockwise or counter-clockwise (Y page 115). Only change the temperature setting in small increments. Start at 72 † (22 †).

Setting the air distribution Air distribution settings P Directs air through the center and side

air vents

O Directs the airflow through the

footwell air vents

S Directs air through the center, side and

footwell vents

¯ Directs air through the defroster vents b Directs the airflow through the

defroster, center and side air vents8
a Directs air through the defroster and

footwell vents

_ Directs the airflow through the

defroster, center and side air vents as well as the footwell air vents8

i Regardless of the air distribution setting, airflow is always directed through the side air vents.. The side air vents can only be closed when the controls on the side air vents are turned downwards.

X Turn the SmartKey to position 2 in the

ignition lock.

X Press the _ button repeatedly until the

desired symbol appears in the display. The indicator lamp in the à button goes out. Automatic control is deactivated and the air distribution is controlled according to the selected setting.

Setting the airflow X Turn the SmartKey to position 2 in the

X To increase/reduce: press the K or

ignition lock.

I button.

Switching the ZONE function on/off This function is only available in vehicles for Canada.

8 Canada only.

Operating the climate control system 119

X To switch on: press the á button.

The indicator lamp in the á button lights up. The temperature setting for the driver's side is not adopted for the front-passenger side.

When the buttons for temperature, airflow or air distribution are activated, the temperature setting for the driver's side is not adopted for the other climate control zones. X To switch off: press the á button.

The indicator lamp in the á button goes out. The temperature setting for the driver's side is adopted for the front-passenger side.

Defrosting the windshield You can use this function to defrost the windshield or to defrost the inside of the windshield and the side windows. i You should only select the defrosting

function until the windshield is clear again.

X Turn the SmartKey to position 2 in the

ignition lock.

X To activate: press the ¬ button.

The indicator lamp in the ¬ button lights up. The climate control system switches to the following functions: Rcooling with air dehumidification on Rhigh airflow9
Rhigh temperature9
Rair distribution to the windshield and

front side windows

Rair-recirculation mode off

X To switch off: press the ¬ button.

The indicator lamp in the ¬ button goes out. The previously selected settings come into effect again. The cooling with air

9 Depending on the outside temperature.

dehumidification function remains on. Air- recirculation mode remains deactivated.

or X Press the à button.

The indicator lamp in the ¬ button goes out. Airflow and air distribution are set to automatic mode.

or X Turn temperature control : or B

clockwise or counter-clockwise (Y page 115).

or X Press the K or I button.

MAX COOL maximum cooling The MAX COOL function is only available in vehicles for the USA. MAX COOL is only operational when the engine is running. When you activate MAX COOL, climate control switches to the following functions: Rmaximum cooling Rmaximum airflow Rair-recirculation mode on X To activate: press the Ù button.

The indicator lamp in the button lights up.

X To deactivate: press the Ù button

again. The indicator lamp goes out. The previously selected settings come into effect again.

Defrosting the windows Windows fogged up on the inside X Activate the cooling with air

dehumidification function ¿. X Activate automatic mode Ã. X If the windows continue to fog up, activate

the defrosting function (Y page 119).

120 Setting the air vents

i You should only select this setting until

the windshield is clear again.

Windows fogged up on the outside X Switch on the windshield wipers. X Press the _ button repeatedly until the

O or P symbol appears in the display.

i You should only select this setting until

the windshield is clear again.

Rear window defroster Activating/deactivating G WARNING Any accumulation of snow and ice should be removed from the rear window before driving. Visibility could otherwise be impaired, endangering you and others.

The rear window defroster has a high current draw. You should therefore switch it off as soon as the window is clear as it only switches off automatically after several minutes. If the battery voltage is too low, the rear window defroster may switch off. X Turn the SmartKey to position 2 in the

ignition lock.

X Press the ¤ button.

The indicator lamp in the ¤ button lights up or goes out.

Problems with the rear window defroster The rear window defroster has deactivated itself prematurely or cannot be activated. X Switch off any consumers that are not required, e.g. reading lamps or interior lighting. When the battery is sufficiently charged, the rear window defroster is activated again automatically.

Activating/deactivating air- recirculation mode You can deactivate the flow of fresh air if unpleasant odors are entering the vehicle from outside. The air already inside the vehicle will then be recirculated. G WARNING Fogged windows impair visibility, endangering you and others. If the windows begin to fog on the inside, switching off the air recirculation mode immediately should clear interior window fogging. If interior window fogging persists, make sure the air conditioning is activated, or press the ¬ button.

X Turn the SmartKey to position 2 in the

ignition lock.

X To activate: press the g button.

The indicator lamp in the g button lights up.

i In the event of high pollution levels or at

high outside temperatures, air- recirculation mode is automatically activated. When air-recirculation mode is activated automatically, the indicator lamp in the g button is not lit. Outside air is added after about 30
minutes.

X To switch off: press the g button.

The indicator lamp in the g button goes out.

Setting the air vents Important safety notes G WARNING When operating the climate control, the air that enters the passenger compartment through the air vents can be very hot or very cold (depending on the set temperature). This could cause burns or frostbite to unprotected skin in the immediate area of the air vents.

Always keep sufficient distance between unprotected parts of the body and the air vents. If necessary, use the air distribution adjustment to direct the air to air vents in the vehicle interior that are not in the immediate area of unprotected skin.

In order to ensure the direct flow of fresh air through the air vents into the vehicle interior, please observe the following notes: Rnever cover the air vents or air intake grille

in the vehicle interior.

i For virtually draft-free ventilation, adjust

the sliders of the air vents to the center position.

Setting the center air vents

: Center air vent, left ; Center air vent, right = Center vent thumbwheel, right ? Center vent thumbwheel, left X To open/close: turn thumbwheels =

and ? up or down.

Setting the air vents

121

Setting the side air vents

X To open/close: turn thumbwheel = to the

left or right.

i Side window defroster vent : is never completely shut, even if side air vent ; is shut.

Setting the glove box air vent When automatic climate control is activated, the glove box can be ventilated, for instance to cool its contents. The level of airflow depends on the airflow and air distribution settings. ! Close the air vent when heating the

vehicle. At high outside temperatures, open the air vent and activate the "cooling with air dehumidification" function. Otherwise, temperature-sensitive items stored in the glove box could be damaged.

: Air vent thumbwheel ; Air vent

122 Setting the air vents

X To open/close: turn thumbwheel :

clockwise or counter-clockwise.

Setting the rear-compartment air vents Setting the center vents in the rear compartment

: Rear-compartment air vent thumbwheel ; Rear-compartment air vent, right = Rear-compartment air vent, left X To open/close: turn thumbwheel : up or

down.

Useful information ............................ 124
Breaking-in notes .............................. 124
Driving ............................................... 124
Automatic transmission ................... 130
Refueling ............................................ 137
Parking ............................................... 140
Driving tips ........................................ 142
Driving systems ................................ 146

123

124 Driving

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).

Breaking-in notes The first 1000 miles (1500 km) The more you look after the engine when it is new, the more satisfied you will be with its performance in the future. RDrive at varying vehicle speeds and engine speeds for the first 1000 miles (1500 km) for this reason.

RAvoid overstraining the vehicle during this

period, e.g. driving at full throttle.

RChange gear in good time, at the latest

when the tachometer needle is 2/3 of the way to the red area in the tachometer display.

RIf possible, drive in drive program E (in AMG

vehicles in drive program C) for the first 1000 miles (1500 km).

RDo not manually shift to a lower gear to

brake the vehicle.

RIf possible, do not depress the accelerator

pedal past the point of resistance (kickdown).

ROnly select shift ranges 3, 2 or 1 when

driving slowly, e.g. in mountainous terrain. After 1000 miles (1500 km), you can increase the engine speed gradually and bring the vehicle up to full speed.

Additional breaking-in notes for AMG vehicles: Rdo not drive faster than 85 mph

(140 km/h) in the first 1000 miles (1500 km).

Ronly allow the engine to reach a maximum

engine speed of 4500 rpm briefly.

Rchange gear in good time. i You should also observe these notes on running in if the engine or parts of the drive train on your vehicle have been replaced.

i Always observe the respective speed

restrictions.

AMG vehicles with rear axle locking differential Your vehicle is equipped with a self-locking differential on the rear axle. For better protection of the differential on the rear axle, carry out an oil change after a breaking-in phase of 2000 miles (3000 km). This oil change extends the service life of the differential. Have the oil change carried out at a qualified specialist workshop. Mercedes- Benz recommends that you use an authorized Mercedes-Benz Center for this purpose.

Driving Important safety notes G WARNING Make sure absolutely no objects are obstructing the pedals' range of movement. Keep the driver's footwell clear of all obstacles. If there are any floormats or carpets in the footwell, make sure the pedals still have sufficient clearance. During sudden driving or braking maneuvers the objects could get caught between the pedals. You could then no longer brake or accelerate. This could lead to accidents and injury.

G WARNING On slippery road surfaces, never downshift in order to obtain braking action. This could result in drive wheel slip and reduced vehicle control. Your vehicle's ABS will not prevent this type of loss of control. G WARNING It is dangerous to shift the automatic transmission out of parking position P or neutral position N if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your right foot is firmly on the brake pedal.

! Warm up the engine quickly. Do not use the engine's full performance until it has reached operating temperature. Only shift the automatic transmission to the desired drive position when the vehicle is stationary. Where possible, avoid spinning the drive wheels when pulling away on slippery roads. You could otherwise damage the drive train.

! AMG vehicles: at low engine oil

temperatures (below 68 ‡ (+20 †), the maximum engine speed is restricted in order to protect the engine. To protect the engine and maintain smooth engine operation, avoid driving at full throttle when the engine is cold.

Driving 125

SmartKey positions SmartKey

g To remove the SmartKey

(shift the transmission to position P)

1 Power supply for some consumers, such

as the windshield wipers

2 Ignition (power supply for all consumers)

and drive position 3 To start the engine If the SmartKey is in position 0 in the ignition lock for an extended period of time, it can no longer be turned in the ignition lock. The steering is then locked. To unlock, remove the SmartKey and reinsert it into the ignition lock. The steering is locked when you remove the SmartKey from the ignition lock. i The SmartKey can be turned in the

ignition lock even if it is not the correct SmartKey for the vehicle. The ignition is not switched on. The engine cannot be started.

KEYLESS-GO General information Vehicles with KEYLESS-GO are equipped with a SmartKey featuring an integrated KEYLESS- GO function and a detachable Start/Stop button. The Start/Stop button must be inserted into the ignition lock and the SmartKey must be in the vehicle. Pressing the Start/Stop button several times in succession corresponds to the different

126 Driving

SmartKey positions in the ignition lock. This is only the case if you are not depressing the brake pedal. If you depress the brake pedal and press the Start/Stop button, the engine starts immediately. The Start/Stop button can be removed from the ignition lock. Then, you can insert the SmartKey into the ignition lock. i You do not have to remove the Start/Stop

button from the ignition lock when you leave the vehicle. However, you should always take the SmartKey with you when leaving the vehicle. The vehicle can be started with the Start/Stop button if the SmartKey is in the vehicle.

: Start/Stop button ; Ignition lock X Insert Start/Stop button : into ignition

lock ;.

i When you insert Start/Stop button :

into ignition lock ;, the system requires a detection time of approximately two seconds before you can use Start/Stop button :.

Start/Stop button = USA only ? Canada only X Position 0: if Start/Stop button : has not yet been pressed, this corresponds to the SmartKey being removed from the ignition.

X Position 1: press Start/Stop button :.

You can now activate the windshield wipers, for example.

i If you then open the driver's door when in

this position, the power supply is deactivated.

X Position 2 (ignition): press Start/Stop

button : twice.

i If you press Start/Stop button : once when in this position and the driver's door is open, the power supply is deactivated again.

As soon as the ignition is switched on, all the indicator lamps in the instrument cluster light up. If an indicator lamp does not go out after the engine is started or if it lights up while the vehicle is in motion, see (Y page 229).

Starting the engine Important safety notes G WARNING Inhalation of exhaust gas is hazardous to your health. All exhaust gas contains carbon monoxide (CO), and inhaling it can cause unconsciousness and possible death.

Do not run the engine in confined areas (such as a garage) which are not properly ventilated. If you think that exhaust gas fumes are entering the vehicle while driving, have the cause determined and corrected immediately. If you must drive under these conditions, drive only with at least one window fully open at all times.

! Do not depress the accelerator pedal

when starting the engine.

i The catalytic converter preheats for up to 30 seconds after a cold start. The sound of the engine may change during this time.

Automatic transmission X Shift the transmission to position P.

The transmission position display in the multifunction display shows P.

i You can also start the engine when the

transmission is in position N.

Starting procedure with the SmartKey X Turn the SmartKey to position 3 in the

ignition lock (Y page 125) and release it as soon as the engine is running.

Using KEYLESS-GO to start the engine G WARNING As long as the SmartKey is in your vehicle, the vehicle can be started. Therefore, never leave children unattended in the vehicle, as they could otherwise accidentally start the engine. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. Do not leave children unattended in the vehicle, or with access to an unlocked vehicle. A child's unsupervised access to a vehicle could result in an accident and/or serious personal injury.

i The Start/Stop button can be used to

start the vehicle without inserting the SmartKey into the ignition lock. The Start/

Driving 127

Stop button must be inserted into the ignition lock and the SmartKey must be in the vehicle.

X Depress the brake pedal and keep it

depressed.

X Press the Start/Stop button (Y page 125)

once. The engine starts.

Pulling away Automatic transmission G WARNING It is dangerous to shift the automatic transmission out of parking position P or neutral position N if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your right foot is firmly on the brake pedal.

i It is only possible to shift the transmission

from position P to the desired position if you depress the brake pedal. Only then is the selector lever lock released.

X Depress the brake pedal and keep it

depressed.

X Shift the transmission to position D or R. X Release the parking brake (Y page 141). X Release the brake pedal. X Carefully depress the accelerator pedal. ! If a warning tone sounds and the Release Park. Brake message appears in the multifunction display, the parking brake is still applied. Release the parking brake.

i The vehicle locks centrally once you have pulled away. The locking knobs in the doors drop down.

128 Driving

You can open the doors from the inside at any time. You can also deactivate the automatic locking feature (Y page 196).

i Upshifts take place at higher engine

speeds after a cold start. This helps the catalytic converter to reach its operating temperature more quickly.

Hill start assist Hill start assist helps you when pulling away forwards or in reverse on an uphill gradient. It holds the vehicle for a short time after you have removed your foot from the brake pedal. This gives you enough time to move your foot from the brake pedal to the accelerator pedal and depress it before the vehicle begins to roll. G WARNING Never leave the vehicle when it is held by hill start assist. After approximately one second, hill start assist will no longer brake your vehicle and it could roll away.

X Take your foot off the brake pedal. i Once you have taken your foot off the

brake pedal, the vehicle is held for around one second.

X Pull away. Hill start assist will not function if: Ryou are pulling away on a level road or a

downhill gradient.

Rthe transmission is in position N. Rthe parking brake is applied. RESP® is malfunctioning.

Driving 129

Problems with the engine Problem The engine does not start. The starter motor can be heard.

Possible causes/consequences and M Solutions RThere is a malfunction in the engine electronics. RThere is a malfunction in the fuel supply. X Before attempting to start the engine again, turn the SmartKey in the ignition back to position 0 or press the Start/Stop button repeatedly until all indicator lamps in the instrument cluster go out.

The engine does not start. You cannot hear the starter motor.

X Try to start the engine again (Y page 126). Avoid excessively

long and frequent attempts to start the engine as these will drain the battery.

If the engine does not start after several attempts: X Consult a qualified specialist workshop, e.g. an authorized

Mercedes-Benz Center.

The on-board voltage is too low because the battery is too weak or discharged. X Jump-start the vehicle (Y page 287). If the engine does not start despite attempts to jump-start it: X Consult a qualified specialist workshop, e.g. an authorized

Mercedes-Benz Center.

The starter motor was exposed to a thermal load that was too high. X Allow the starter motor to cool down for approximately two

minutes.

X Try to start the engine again. If the engine still does not start: X Consult a qualified specialist workshop, e.g. an authorized

Mercedes-Benz Center.

130 Automatic transmission

Problem The engine is not running smoothly and is misfiring.

The coolant temperature gauge shows a value above 248 ‡ (120 †).

Possible causes/consequences and M Solutions There is a malfunction in the engine electronics or a mechanical component of the engine management system. X Only depress the accelerator pedal slightly. X Have the cause rectified immediately at a qualified specialist

workshop, e.g. an authorized Mercedes-Benz Center. Otherwise, non-combusted fuel may get into the catalytic converter and damage it.

The coolant level is too low. The coolant is too hot and the engine is no longer being cooled sufficiently. X Stop as soon as possible and allow the engine and the coolant

to cool down.

X Check the coolant level (Y page 266). Observe the warning

notes as you do so and add coolant if necessary.

Selector lever Overview of transmission positions

Example: selector lever P Park position with selector lever lock R Reverse gear N Neutral D Drive

Automatic transmission Important safety notes G WARNING It is dangerous to shift the automatic transmission out of parking position P or neutral position N if the engine speed is higher than idle speed. If your foot is not firmly on the brake pedal, the vehicle could accelerate quickly forward or in reverse. You could lose control of the vehicle and hit someone or something. Only shift into gear when the engine is idling normally and when your right foot is firmly on the brake pedal. G WARNING Keep in mind that turning off the engine alone only will shift the automatic transmission into neutral position N automatically. Always shift the automatic transmission into park position P before turning off the engine. Otherwise the vehicle could roll away which could result in an accident and/or serious personal injury.

Automatic transmission 131

Transmission position and drive program display

Transmission positions B Park position