2012 Mercedes-benz GLK Class Owners Manual

X Press the combination switch beyond the

pressure point in the direction of arrow :. In the c or à position, the high- beam headlamps are only switched on when it is dark and the engine is running. The K indicator lamp in the instrument cluster lights up when the high-beam headlamps are switched on.

X To switch off the high-beam

headlamps: move the combination switch back to its normal position. The K indicator lamp in the instrument cluster goes out.

High-beam flasher X To switch on: turn the SmartKey in the

ignition lock to position 1 or 2 or start the engine.

X Pull the combination switch in the direction

of arrow =.

Hazard warning lamps

106 Exterior lighting

The hazard warning lamps automatically switch on if: Ran air bag is deployed. Rthe vehicle is slowed down severely from a speed of over 45 mph(70 km/h) and comes to a halt.

Cornering light function

X To switch on the hazard warning lamps:

press button :. All turn signals flash. If you now switch on a turn signal using the combination switch, only the turn signal lamp on the corresponding side of the vehicle will flash.

X To switch off the hazard warning

lamps: press button :.

The hazard warning lamps are deactivated automatically if the vehicle returns to a speed of over 6 mph(10 km/h) after a full application of the brakes. i The hazard warning lamps still operate if

the ignition is switched off.

Active light function

The active light function is a system that moves the headlamps according to the steering movements of the front wheels. In this way, relevant areas remain illuminated while driving. This allows you to recognize pedestrians, cyclists and animals. Active: when the lights are switched on.

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: if you are driving at speeds below 25 mph (40 km/h) and switch on the turn signals 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.

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

Interior lighting 107

: 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

B Front reading lamps C Front interior lighting

Rear-compartment overhead control panel : p Switches the right-hand reading

lamp on/off

; p Switches the left-hand 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 177).

108 Replacing bulbs

Manual interior lighting control X To switch the front interior lighting on/

off: press the c button.

X To switch the rear interior lighting on/

off: press the v 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 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 109). 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.

Replacing bulbs

109

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.

Bi-Xenon headlamps : Turn signal lamp/side marker lamp:

WY 5 W

; Turn signal lamp: PY 21 W = Cornering lamp: H7 55 W ? Parking lamp/standing lamp: W 5 W

Halogen headlamps : Turn signal lamp/side marker lamp:

WY 5 W

; Turn signal lamp: PY 21 W = High-beam headlamp: H7 55 W ? Parking lamp/standing lamp: W 5 W A Low-beam headlamp: H7 55 W

Tail lamp with/without LED : Tail lamp/brake lamp: P 21 W ; Turn signal lamp: PY 21 W = Backup lamp: P 21 W or W 16 W11
? Tail lamp/rear fog lamp: P 21 W A Side marker lamp: W 3 W

11 Vehicles without LED turn signal lamps (W 16 W)/vehicles with LED turn signal lamps (P 21 W).

110 Replacing bulbs

Removing/attaching the washer fluid reservoir You must remove the washer fluid reservoir from the engine compartment before you can replace the bulbs in the left-hand headlamp.

X To detach: turn catch ; counter-

clockwise.

X Swing washer fluid reservoir : far enough

to the side to allow the bulbs of the headlamp to be replaced.

X To attach: swing back washer fluid

reservoir :.

License plate lamp : License plate lamp: W 5 W

Changing the front bulbs Removing/installing the headlamp cover You must remove the headlamp cover in the engine compartment before you can replace the bulbs in the headlamp.

X Turn catch ; clockwise.

Low-beam headlamps (halogen headlamps)

X To remove: press retaining clip : in the

direction of the arrow.

X Pull cover ; forward underneath

cover = and remove.

X To install: slide cover ; under cover =.

Connect the two covers by inserting the tongue into the groove.

X Press cover ; until retaining clip :

engages.

X Switch off the lights. X Open the hood. X Remove the headlamp cover (Y page 110). X Left-hand headlamp: detach the washer

fluid reservoir (Y page 110).

X Turn housing cover : counter-clockwise

and pull it out.

X Pull connector ; from bulb ?. X Unclip retaining spring = and fold it down. X Pull out bulb ?. X Insert the new bulb. X Clip retaining spring = back in. X Attach connector ; to bulb ?. X Attach housing cover : and turn it

clockwise until it engages.

X Left-hand headlamp: fasten the washer

fluid reservoir (Y page 110).

X Install the headlamp cover (Y page 110).

High-beam headlamps (halogen headlamps)

X Switch off the lights. X Open the hood. X Remove the headlamp cover (Y page 110). X Left-hand headlamp: detach the washer

fluid reservoir (Y page 110).

X Turn housing cover : counter-clockwise

and pull it out.

X Press the handle of bulb holder ; in the direction of the arrow until bulb holder ; is released.

X Take out the handle with bulb holder ;. X Take the bulb out of bulb holder ;.

Replacing bulbs

111

X Insert the new bulb into bulb holder ;.

Lug = of the bulb must be pointing upward.

X Insert bulb holder ;. X Push the handle of bulb holder ; in the opposite direction from the arrow until holder ; engages.

X Align housing cover : and turn it

clockwise until it engages.

X Left-hand headlamp: fasten the washer

fluid reservoir (Y page 110).

X Install the headlamp cover (Y page 110).

Parking lamp/standing lamp

X Switch off the lights. X Open the hood. X Remove the headlamp cover (Y page 110). X Left-hand headlamp: detach the washer

fluid reservoir (Y page 110).

X Turn housing cover : counter-clockwise

and pull it out.

X Pull out bulb holder ;.

112 Replacing bulbs

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.

X Left-hand headlamp: fasten the washer

fluid reservoir (Y page 110).

X Install the headlamp cover (Y page 110).

Turn signal lamps/side marker lamps

X Switch off the lights. X Open the hood. X Remove the headlamp cover (Y page 110). X Left-hand headlamp: detach the washer

fluid reservoir (Y page 110).

X Turn bulb holder : or ; counter-

clockwise and pull it out.

X Left-hand headlamp: fasten the washer

fluid reservoir (Y page 110).

X Install the headlamp cover (Y page 110).

Changing the rear bulbs Opening and closing the side trim panels You must open the side trim panel in the cargo compartment before you can change the bulbs in the tail lamps.

Left-hand side trim panel

X WY 5 W (turn signal lamp and side marker

lamp): remove the bulb from bulb holder :.

X PY 21 W (turn signal lamp): turn the bulb

counter-clockwise, applying slight pressure, and remove it from bulb holder ;.

X WY 5 W (turn signal lamp and side marker

lamp): insert the new bulb into bulb holder :.

X PY 21 W (turn signal lamp): insert the new

bulb into bulb holder ; and turn it clockwise while applying slight pressure.

X Insert bulb holder : or ; and turn it

clockwise.

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 direction to the arrow.

Windshield wipers

113

Tail lamp X Switch off the lights. X Open the cargo compartment. X Open the side trim panel (Y page 112).

X Insert the connector. X Close the side trim panel (Y page 112).

License plate lamps

X Pull out connector ;. X Press retaining lugs : simultaneously in the direction of the arrow and pull the bulb holder out.

Bulb holder without LED turn signal lamp = Tail lamp/brake lamp ? Turn signals A Backup lamp B Rear fog lamp/tail lamp C Side marker lamp X Lightly press the corresponding bulb into the holder, turn it counter-clockwise and remove it from the bulb holder.

X Insert the corresponding new bulb into the

bulb holder and turn it clockwise.

X Attach the bulb holder and press firmly.

The retaining lugs on the bulb holder engage audibly.

X Switch off the lights. X Open the tailgate. X Press lug ; of license plate lamp : in the direction of the arrow and remove license plate lamp lens :.

X Remove license plate lamp lens :. X Replace the bulb. X Insert license plate lamp lens : and press

it in until it engages.

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 windows 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.

114 Windshield wipers

! 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.

the Ä position, causing the windshield wipers to wipe more frequently.

Switching the rear window wiper on/ off

Combination switch 1 $ Windshield wipers off 2 Ä Intermittent wipe, low12
3 Å Intermittent wipe, high13
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.

! Vehicles with a rain sensor: if the

windshield becomes 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.

Vehicles with a rain sensor: in the Ä or Å position, the appropriate wiping frequency is automatically set according to the intensity of the rain. In the Å position, the rain sensor is more sensitive than in

12 Rain sensor set to low sensitivity. 13 Rain sensor set to high sensitivity.

Combination switch : è Switch 2 ô To wipe with washer fluid 3 I To switch on intermittent wiping 4 0 To switch off intermittent wiping 5 ô To wipe with washer fluid X Turn the SmartKey to position 1 or 2 in the

ignition lock.

X Turn switch : on the combination switch

to the corresponding position. When the rear window wiper is switched on, the icon appears in the instrument cluster.

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/ rear window. 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 windshield wiper blades Removing the wiper blades ! Before changing the wiper blades, always

set the wiper arms to a vertical position using the combination switch. There is otherwise a risk of damaging the hood. Moving the wiper blades to a vertical position Vehicles without KEYLESS-GO X Turn the SmartKey to position 1 or 2 in the

ignition lock.

X Set the windshield wipers to

position °.

X When the wiper arms have reached a vertical position, turn the SmartKey to position 0 and remove it from the ignition lock.

Vehicles with KEYLESS-GO X Switch off the engine. X Remove your foot from the brake pedal. X Set the windshield wipers to

position °.

Windshield wipers

115

X Press the Start/Stop button repeatedly

until the windshield wipers start.

X When the wiper arms have reached a vertical position, press the Start/Stop button.

Removing the wiper blades X Fold the wiper arm away from the

windshield until it engages.

X Set the wiper blade at right angles to the

wiper arm.

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.

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. 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.

116 Windshield wipers

Replacing the rear window wiper blade Removing the wiper blade

X Remove the SmartKey from the ignition

lock.

X Fold wiper arm : away from the rear

window until it engages.

X Position wiper blade ; at a right angle to

wiper arm :.

X Hold wiper arm : and press wiper

blade ; in the direction of the arrow until it releases.

X Remove wiper blade ;.

Installing the wiper blade X Place new wiper blade ; onto wiper

arm :.

X Hold wiper arm : and press wiper

blade ; in the opposite direction to the arrow until it engages.

X Make sure that wiper blade ; is seated

correctly.

X Position wiper blade ; parallel to wiper

arm :.

X Fold wiper arm : back onto the rear

window.

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.

Useful information ............................ 118
Overview of climate control sys- tems ................................................... 118
Operating the climate control sys- tem ..................................................... 121
Setting the air vents ......................... 125

117

118 Overview of climate control systems

convenience opening feature (Y page 83). 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

119

Control panel for dual-zone automatic climate control

: To set the temperature, left (Y page 122) ; To set climate control to automatic (Y page 122) = To switch climate control on/off (Y page 121) ? To switch the MONO function on/off14(Y page 123)

To switch maximum cooling MAX COOL on/off15(Y page 123)

A To activate/deactivate cooling with air dehumidification (Y page 121) B To defrost the windshield (Y page 123) C To activate/deactivate air-recirculation mode (Y page 124) D To set the temperature, right (Y page 122) E To switch the rear window defroster on/off (Y page 124) F To increase the airflow (Y page 123) G To reduce the airflow (Y page 123) H Display I To set the air distribution (Y page 122)

14 Canada only. 15 USA only.

120 Overview of climate control systems

Control panel for 3-zone automatic climate control

Front control panel

: Sets the temperature, left (Y page 122) ; Sets climate control to automatic mode (Y page 122) = Switches climate control on/off (Y page 121) ? Activates/deactivates the MONO function (Y page 123) A Activates/deactivates cooling with air dehumidification (Y page 121) B Activates/deactivates the residual heat function (Y page 125) C Defrosts the windshield (Y page 123) D Sets the temperature, right (Y page 122) E Switches the rear window defroster on/off (Y page 124) F Sets the air distribution, right (Y page 122) G Increases the airflow (Y page 123) H Reduces the airflow (Y page 123) I Display J Sets the air distribution, left (Y page 122) K Activates/deactivates air-recirculation mode (Y page 124)

Rear control panel

L Increases the temperature (Y page 122) M Display N Increases the airflow (Y page 123)

Operating the climate control system 121

O Reduces the airflow (Y page 123) P Reduces the temperature (Y page 122)

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 122).

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 cooling with the 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. 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 i The evaporator is ventilated when the air-

conditioning system is operated. The blower is activated automatically approximately one hour after the vehicle has been locked. The blower operates on the lowest level for 30 minutes. The noise from the blower is normal and is not an indication of a malfunction. If you unlock the vehicle during this time, the ventilation is interrupted. To conserve battery life, the evaporator is not ventilated automatically if the starter battery is weak.

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.

122 Operating the climate control system

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

D clockwise or counter-clockwise (Y page 119). Only change the temperature setting in small increments. Start at 72 ‡ (22 †).

Setting the air distribution Air distribution settings Dual-zone climate control: the air distribution can be set individually for the driver's and front-passenger sides. ¯ Directs air through the defroster vents P Directs air through the center and side

air vents

O Directs the airflow through the

footwell air vents

S Directs the airflow through the center,

side and footwell air vents16

_ Directs the airflow to the entire vehicle

interior17

b Directs the airflow through the

defroster, center and side air vents.17
a Directs air through the defroster and

footwell vents

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.

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.

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.

16 USA only. 17 Canada only.

Operating the climate control system 123

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.

Activating/deactivating the MONO function This function is only available in vehicles for Canada. You can use the MONO function to adopt the temperature and air distribution settings on the driver's side for the front-passenger side. X Press the º button.

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

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 airflow18
Rhigh temperature18
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 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 D

clockwise or counter-clockwise (Y page 119).

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

18 Depending on the outside temperature.

124 Operating the climate control system

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 123).

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.

19 Automatic climate control only.

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 levels19 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.

i Air-recirculation mode deactivates

automatically: Rafter approximately five minutes if

outside temperatures are less than about 41 ‡ (5 †)

Rafter approximately five minutes if cooling with air dehumidification is deactivated

Rafter approximately 30 minutes if outside

temperatures are over about 41 ‡ (5 †)

Activating/deactivating the residual heat function It is possible to make use of the residual heat of the engine to continue heating the stationary vehicle for up to 30 minutes after the engine has been switched off. The heating time depends on the temperature that has been set. i The blower will run at a low speed

regardless of the airflow setting.

i If you activate the residual heat function at high temperatures, only the ventilation will be activated. The blower runs at medium speed.

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.

Setting the air vents

125

X Turn the SmartKey to position 0 in the

ignition lock or remove it.

X To activate: press the Ì button.

The indicator lamp in the Ì button lights up.

X To switch off: press the Ì button.

The indicator lamp in the Ì button goes out.

i Residual heat is deactivated

automatically: Rafter about 30 minutes Rwhen the ignition is switched on Rif the battery voltage drops Rif the coolant temperature is too low

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: Rkeep the air inlet between the windshield and the hood free of blockages, such as ice, snow or leaves.

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.

126 Setting the air vents

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 side air vents

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 X To open/close: turn thumbwheel :

clockwise or counter-clockwise.

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

X To open/close: turn thumbwheel = up or

down.

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

: Rear-compartment air vent thumbwheel ; Rear-compartment air vent, right = Rear-compartment air vent, left

X To open/close: turn thumbwheel : up or

down.

Setting the air vents

127

128

Useful information ............................ 130
Breaking-in notes .............................. 130
Driving ............................................... 130
Automatic transmission ................... 135
Refueling ............................................ 141
Parking ............................................... 143
Driving tips ........................................ 145
Driving systems ................................ 151
Trailer towing .................................... 159

129

130 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.

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. RIf possible, drive in drive program E for the

first 1000 miles (1500 km).

After 1000 miles (1500 km), you can increase the engine speed gradually and bring the vehicle up to full speed. 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.

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.

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.

Driving 131

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 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 and the electrical equipment can be operated while 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 :.

132 Driving

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 201).

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.