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X To increase/reduce: turn control : or
C clockwise or anti-clockwise (Y page 125). Only change the temperature setting in small increments. Start at 22 †.
THERMOTRONIC automatic climate control
THERMOTRONIC automatic climate control zones You can select different temperature settings for the driver's and front-passenger sides as well as for the rear compartment. X Turn the key to position 2 in the ignition
lock.
X To increase/reduce the temperature in the front compartment: turn controls :
and E clockwise or anti-clockwise (Y page 126). Only change the temperature setting in small increments. Start at 22 †.
X To increase/reduce the temperature in the rear compartment via the front con- trol panel: turn the key in the ignition lock to position 2.
X Press the Y button.
The display changes to rear-compartment climate control.
X Turn control E clockwise or anti-clockwise
(Y page 126). Only change the temperature setting in small increments. Start at 22 †.
i To return to the standard display, press
the Y button.
i The rear display changes to the standard display automatically after three seconds. X To increase/reduce the temperature in the rear compartment via the rear con- trol panel: turn the key in the ignition lock to position 2.
X Turn control R clockwise or anti-clockwise
(Y page 126). Only change the temperature setting in small increments. Start at 22 †.
Setting the air distribution Air distribution settings THERMOTRONIC automatic climate control: the air distribution can be set individually for the driver's and front-passenger sides. Front control panel Z Directs the airflow through the demis-
ter vents
M Directs the airflow through the demis-
ter vents
¯ Directs the airflow through the demis-
ter vents
132 Operating the climate control system
c Directs the airflow through the foot-
well and side air vents
O Directs the airflow through the foot-
well and side air vents
\ Directs the airflow through the centre
and side air vents
P Directs the airflow through the centre
and side air vents
Rear control panel M Directs the airflow through the rear-
compartment air vents
O Directs the airflow through the foot-
well air vents
i Using the rear control panel, you can also
activate both air distribution positions simultaneously. In order to do this, press both air distribution buttons. The air is then routed through all rear air vents.
Adjusting X Turn the key to position 2 in the ignition
lock.
X Press the Z, M, ¯, c, O,
\ or P button.
Setting the airflow X Turn the key to position 2 in the ignition
lock.
X To increase: press the K button. X To reduce: press the I button. Vehicles with LINGUATRONIC: when LINGUA- TRONIC is switched on, the airflow is restric- ted to 50%. When command input is com- plete, the airflow is adjusted back to the pre- vious setting. i You can use THERMOTRONIC automatic climate control to set the airflow in the rear compartment separately.
2 Canada only.
Switching the MONO function on/off The MONO function is only available with THERMOTRONIC automatic climate control2. You can use the MONO function to adopt the settings configured for temperature, air dis- tribution and airflow on the driver's side for the front-passenger side and the rear com- partment. X Press the º button.
The indicator lamp in the º button lights up or goes out.
Demisting the windscreen You can use this function to demist the wind- screen or to demist the inside of the wind- screen and the side windows. Switch off the "demisting" function as soon as the windscreen is clear again. X Turn the key 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 airflow (depending on the outside
temperature)
Rhigh temperature (depending on the out-
side temperature)
Rair distribution to the windscreen and
front side windows
Rair-recirculation mode off
X To deactivate: press the ¬ button.
The indicator lamp in the ¬ button goes out. The previous settings are reactivated. The cooling with air dehumidification func- tion remains on. Air-recirculation mode remains deactivated.
or
Operating the climate control system 133
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 control : or B clockwise or anti-
clockwise (Y page 125) (THERMATIC auto- matic climate control), (Y page 126) (THERMOTRONIC automatic climate con- trol).
or X Press the K or I button.
Demisting the windows Windows misted up on the inside X Activate the Á cooling with air dehu-
midification function.
X Activate automatic mode Ã. X If the windows continue to mist up, activate
the demisting function (Y page 132).
i You should only select this setting until
the windscreen is clear again.
Windows misted up on the outside X Press the P/\ or O/c air
distribution button.
i You should only select this setting until
the windscreen is clear again.
Rear window heating Switching on/off G WARNING Clear all windows of ice or snow before setting off. Otherwise, impaired visibility could endanger you and others.
The rear window heating has a high current draw. You should therefore switch it off as soon as the window is clear. It otherwise
switches off automatically after several minutes. If the battery voltage is too low, the rear win- dow heating may switch off. X Turn the key to position 2 in the ignition
lock.
X Press the ª button.
The indicator lamp in the ª button lights up or goes out.
Problems with the rear window heating If the indicator lamp in the ª rear window heating button flashes, the on-board voltage is too low or the roof is open. The rear window heating has switched off prematurely or can- not 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 heating is activated again automatically.
Activating/deactivating air-recircula- tion mode G WARNING Only switch over to air-recirculation mode briefly at low outside temperatures. Other- wise, the windows could mist up, thus impair- ing visibility and endangering yourself and others. This may prevent you from observing the traffic conditions, thereby causing an accident.
You can deactivate the flow of fresh air if unpleasant odours are entering the vehicle from outside. The air already inside the vehi- cle will then be recirculated. The operation of air-recirculation mode is the same for all control panels.
134 Operating the climate control system
X Turn the key to position 2 in the ignition
lock.
X To activate: press the d button.
The indicator lamp in the d button lights up.
i Air-recirculation mode is automatically activated at high levels of pollution or at high outside temperatures. When air-recir- culation mode is activated automatically, the indicator lamp in the d button is not lit. Outside air is added after about 30 minutes.
X To deactivate: press the d button.
The indicator lamp in the d button goes out.
i Air-recirculation mode is not deactivated
automatically at outside temperatures above 26 †. Outside air is added after about 30 minutes3. Air-recirculation mode is not deactivated automatically at outside temperatures above 79 ‡ (26 †). Outside air is added after about 30 minutes4.
and closed. If there is a risk of entrapment, operate the 2 switch to move the pano- rama sliding sunroof in the opposite direction.
X Convenience closing feature: press and
hold the d button until the side win- dows and the sliding sunroof/panorama sliding sunroof are closed. The indicator lamp in the d button lights up. Air-recirculation mode is activated.
X Convenience opening feature: press and
hold the d button until the side win- dows and the sliding sunroof/panorama sliding sunroof are opened. The side win- dows and the sliding sunroof/panorama sliding sunroof move back to their original position. The indicator lamp in the d button goes out. Air-recirculation mode is deactivated. i If you open the side windows or the sliding
sunroof/panorama sliding sunroof man- ually after closing them with the conveni- ence closing feature, they will remain in this position when opened using the conveni- ence opening feature.
Convenience opening/closing using the air-recirculation button G WARNING Make sure that nobody can become trapped between the side window and the door frame as the side windows are opened and closed. Make sure that all objects and body parts are clear of the side windows when they are being opened or closed. You or the objects could be drawn in or become trapped between the side window and the door frame as the window moves. If there is a risk of entrapment, oper- ate the W switch to move the side window in the opposite direction. Make sure that nobody can become trapped as the panorama sliding sunroof is opened
Activating/deactivating the residual heat function It is possible to make use of the residual heat of the engine to continue heating the station- ary vehicle for up to 30 minutes after the engine has been switched off. The heating time depends on the temperature that has been set for the vehicle interior. X To activate: press the Á button.
The indicator lamp in the Á button lights up.
i The blower will run at a low speed regard-
less of the airflow setting.
i If you activate the residual heat function at high temperatures, only the ventilation
3 Vehicles with THERMOTRONIC automatic climate control. 4 Vehicles with THERMOTRONIC automatic climate control.
Operating the climate control system 135
will be activated. The blower runs at medium speed.
X To deactivate: press the Á button.
The indicator lamp in the Á button goes out.
Residual heat is deactivated automatically: Rafter approximately 30 minutes Rwhen the ignition is switched on Rif the battery voltage drops Rif the coolant temperature is too low
Auxiliary heating Important safety notes G WARNING Exhaust fumes are produced when the auxili- ary heating is in operation. Inhaling these exhaust fumes can be poisonous. You should therefore switch off the auxiliary heating in confined spaces without an extraction sys- tem, e.g. a garage. G WARNING When operating the auxiliary heating parts of the vehicle can get very hot. Make sure that the exhaust system does not under any cir- cumstances come into contact with easily ignitable material such as dry grass or fuels. The material could otherwise ignite and set the vehicle alight. Choose your parking spot accordingly. Operating the auxiliary heating is thus pro- hibited at filling stations or when your vehicle is being refuelled. You must therefore switch off the auxiliary heating at filling stations.
! Operating the auxiliary heating/ventila- tion draws on the vehicle battery. After you have heated or ventilated the vehicle a maximum of two times, drive for a longer distance.
i Switch the auxiliary heating on regularly
once a month for about ten minutes.
The auxiliary heating heats the air in the vehi- cle interior to the set temperature without using the heat of the running engine. The aux- iliary heating is operated directly using the vehicle's fuel. For this reason, the tank con- tent must be at least at reserve fuel level to ensure that the auxiliary heating functions. The auxiliary heating/ventilation automati- cally adjusts to changes in temperature and weather conditions. For this reason, the aux- iliary heating could switch from ventilation mode to heating mode or from heating mode to ventilation mode. The auxiliary heating switches off automati- cally after 30 minutes. This time limit can be altered. To do this, visit a qualified specialist workshop. Exception: when switching on using the on-board computer, it will continue to run for a maximum of 50 minutes. You cannot use the auxiliary ventilation to cool the vehicle interior to a temperature lower than the outside temperature.
Before switching on X Turn the key to position 2 in the ignition
lock.
X Set the temperature. The auxiliary heating/ventilation can be acti- vated even when climate control is set to manual. Optimum comfort can be attained when the system is set to automatic mode. Set the temperature to 22 †. The auxiliary heating/ventilation can be acti- vated or deactivated using the remote control or the button on the centre console. The on-board computer can be used to spec- ify up to three departure times, one of which may be preselected (Y page 205).
136 Operating the climate control system
Switching the auxiliary heating/venti- lation on/off using the centre console button The colours of the indicator lamps on the but- ton have the following meanings: Blue Red Yellow Departure time preselected
Auxiliary ventilation switched on Auxiliary heating switched on
(Y page 205)
Switch in the centre console X To switch auxiliary heating/ventilation
on: if the key is in position 1 or 2 in the ignition lock, press and hold button : for more than two seconds. If the key is removed or is in position 0, briefly press button :. The red or blue indicator lamp in but- ton : lights up.
X To switch auxiliary heating/ventilation
off: briefly press button :. The red or blue indicator lamp in but- ton : goes out.
Switching the auxiliary heating/venti- lation on/off using the remote control Points to observe before use Your vehicle comes with one remote control. You may use two additional remote controls for your vehicle. For more information, please contact a qualified specialist workshop.
The remote control has a maximum range of approximately 300 metres. This range is reduced by: Rsources of radio interference Rsolid objects between the remote control
and the vehicle
Rthe remote control being in an unfavoura-
ble position in relation to the vehicle Rtransmitting from an enclosed space i The optimum range can be achieved if you hold the remote control vertically, pointing upwards when you press one of the but- tons.
i A battery symbol appears in the display when the battery in the remote control is low. Replace the remote control battery (Y page 137).
Switching the auxiliary heating/ventila- tion on/off
Auxiliary heating remote control : Display ; . To check the status = ^ To switch off the auxiliary heating/
ventilation
? u To switch on the auxiliary heating/
ventilation
A , To check the status X To switch on: press the u button. ON is shown in the remote control display. X To deactivate: press the ^ button. OFF is shown in the remote control display.
Operating the climate control system 137
Heater booster function on vehicles with a diesel engine The heater booster function helps the engine reach its operating temperature faster during its warm-up phase as well as helps to heat the vehicle interior faster. The heater booster function switches on if outside temperatures are low and the coolant temperature is less than 70 †.
Replacing the remote control battery G WARNING Batteries contain poisonous substances. Swallowing/ingesting batteries can result in serious personal injury or death. Always keep batteries away from children. If a battery is swallowed, seek immediate med- ical attention. H Environmental note
Batteries contain pollutants. It is illegal to dispose of them with the household rubbish. They must be collected sep- arately and disposed of in an environmentally responsible recycling system. Dispose of batteries in an environmentally responsible manner. Take discharged batteries to a qualified spe- cialist workshop or to a col- lection point for used batter- ies.
Checking the status of the auxiliary heat- ing/ventilation
Auxiliary heating remote control : Display ; . To check the status = ^ To switch off the auxiliary heating/
ventilation
? u To switch on the auxiliary heating/
ventilation
A , To check the status X Press the , or . button. The following messages may appear in the display: Display
Meaning The auxiliary heating/ ventilation is switched off. The auxiliary ventilation is switched on. The num- ber in the display shows the remaining time (in minutes) for the auxiliary ventilation. The auxiliary heating is switched on. The number in the display shows the remaining time (in minutes) for the auxiliary heating.
138 Operating the climate control system
One 6 V pin battery, type 2CR11108 is required. X Prise apart the side arms of battery
cover ; and pull off battery cover ;.
X Remove old battery :. X Insert the new battery. Observe the polarity
signs on the back of the remote control when doing so.
X Slide battery cover ; back onto the
remote control.
X Use the remote control to check the vehi-
cle's auxiliary heating functions.
Adjusting the air vents
139
Problems with the auxiliary heating/ventilation
Display messages FAIL
© FAIL
FAIL
Possible causes/consequences and M Solutions The signal transmission between the transmitter and the vehicle is faulty. X Change your position in relation to the vehicle, moving closer if
necessary.
X Make another attempt to switch the auxiliary heating on or off
using the remote control.
there is not enough fuel in the fuel tank, or the auxiliary heating is faulty. X Refuel at the nearest filling station. X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at a qualified specialist
workshop.
The starter battery is not charged sufficiently or the system is faulty. X Charge the starter battery. X Make another attempt to switch on the auxiliary heating using
the remote control.
X Have the auxiliary heating checked at a qualified specialist
workshop.
i For virtually draught-free ventilation, adjust the sliders of the air vents to the centre position.
Adjusting the air vents Important safety notes G WARNING Very hot or very cold air can flow from the air vents. This could cause burns or frostbite to bare skin in the immediate vicinity of the vents. Keep bare skin away from these air outlets. If necessary, direct the airflow away to a different area of the vehicle interior.
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 grille on the bonnet free of blockages, such as ice, snow or leaves. Rnever cover the vents or ventilation grilles
in the vehicle interior.
140 Adjusting the air vents
Setting the centre air vents
Setting the rear-compartment air vents Setting the centre vents in the rear com- partment
: Centre air vent, left ; Centre air vent, right = Centre vent thumbwheel, right ? Centre vent thumbwheel, left X To open/close: turn thumbwheels =
and ? up or down.
Setting the side air vents X To open/close: turn thumbwheel = up or
down.
i Side window demister vent : is never
completely shut, even if side air vent ; is shut.
: Rear control panel, only with
THERMOTRONIC automatic climate con- trol
; Rear-compartment air vent, right = Rear-compartment air vent, left When the climate control panel is switched on/off, the air supply through the rear-com- partment air vents is also switched on/off. These rear-compartment side air vents are only available if you have THERMOTRONIC automatic climate control.
Setting the rear-compartment side air vents 2nd row of seats
: Rear-compartment side air vent ; Thumbwheel for rear-compartment side
air vent
Adjusting the air vents
141
X To open/close: turn thumbwheel ; to the
left or right.
Third row of seats
Rear-compartment side air vent : Rear-compartment side air vent ; Thumbwheel for rear-compartment side
air vent
X To open/close: turn thumbwheel ; up or
down.
142
Useful information ............................ 144
Running-in notes ............................... 144
Driving ............................................... 144
Automatic transmission ................... 150
Refuelling ........................................... 155
Parking ............................................... 158
Driving tips ........................................ 160
Driving systems ................................ 163
Towing a trailer ................................. 184143
144 Driving
Useful information
i This Owner's Manual describes all mod- els, series and optional equipment for your vehicle that were available at the time of going to press. National variations are pos- sible. Note that your vehicle may not be equipped with all of the functions descri- bed. This is also the case for systems and functions relevant to safety.
i Read the information on qualified special-
ist workshops: (Y page 23).
Running-in notes Important safety notes New or replaced brake pads and discs only reach their optimum braking effect after sev- eral hundred kilometres of driving. Compen- sate for the reduced braking effect by apply- ing greater force to the brake pedal.
The first 1,500 km If you treat the engine with sufficient care from the very start, you will be rewarded with excellent performance for the remainder of the engine's life. RDrive at varying vehicle speeds and engine
speeds for the first 1,500 km.
RAvoid overstraining the vehicle during this
period, e.g. driving at full throttle.
RChange gear in good time, before the rev counter needle is Ô of the way to the red area of the rev counter.
RDo not shift down a gear manually in order
to brake.
RTry to avoid depressing the accelerator
pedal beyond the point of resistance (kick- down).
RThe shift ranges 3, 2 or 1 should only be engaged when driving slowly, e.g. when driving in mountainous terrain.
After 1,500 km, you may gradually accelerate the vehicle to full road and engine speeds. 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.
Driving Important safety notes G WARNING Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal. The operating and road safety of the vehicle is jeopardised. There is a risk of an accident. Make sure that all objects in the vehicle are stowed correctly, and that they cannot enter the driver's footwell. Fit the floormats securely and as specified in order to ensure sufficient clearance for the pedals. Do not use loose floormats. G WARNING Unsuitable footwear can hinder correct usage of the pedals, e.g.: Rshoes with thick soles Rshoes with high heels Rslippers There is a risk of an accident. Wear suitable footwear to ensure correct usage of the pedals. G WARNING If you switch off the ignition while driving, safety-relevant functions are only available with limitations, or not at all. This could affect, for example, the power steering and the brake boosting effect. You will require considerably more effort to steer and brake. There is a risk of an accident. Do not switch off the ignition while driving.
G WARNING If the parking brake has not been fully released when driving, the parking brake can: Roverheat and cause a fire Rlose its hold function. There is a risk of fire and an accident. Release the parking brake fully before driving off.
! Warm up the engine quickly. Do not use the engine's full performance until it has reached operating temperature. Only set the automatic transmission to the respective drive positions when the vehicle is stationary. Where possible, avoid spinning the drive wheels when pulling away on slippery roads. Otherwise, you could damage the drive train.
Key positions Key
g To remove the key 1 Power supply for some consumers, such
as the windscreen wipers
2 Ignition (power supply for all consumers)
and drive position 3 To start the engine i If the key does not belong to the vehicle,
it can still be turned in the ignition lock. However, the ignition will not be switched on. The engine cannot be started.
Driving 145
KEYLESS-GO General notes RDo not keep the KEYLESS-GO key together
with: - with electronic devices, e.g. a mobile
phone or another key
- with metallic objects, e.g. coins or metal
foil inside metallic objects, e.g. a metal case This can impair the functionality of the KEY- LESS-GO key.
Vehicles with KEYLESS-GO are equipped with a key featuring an integrated KEYLESS-GO function and a detachable Start/Stop button. The Start/Stop button must be inserted in the ignition lock and the key must be in the vehi- cle. Pressing the Start/Stop button several times in succession corresponds to the different key 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 immedi- ately. i The engine can be turned off while the
vehicle is in motion by pressing and holding the Start/Stop button for approximately three seconds. This function operates inde- pendently of the ECO start/stop automatic engine switch-off function.
Key positions with KEYLESS-GO
146 Driving
Switching on the power supply X If Start/Stop button : has not yet been pressed, this corresponds to the key being removed from the ignition.
X Press Start/Stop button : once.
The power supply is switched on. You can now activate the windscreen wipers, for example.
i The power supply is switched off again if:
Rthe driver's door is opened Ryou press Start/Stop button : twice
when in this position. Switching on the ignition X Press Start/Stop button : twice.
The ignition is switched on.
i The power supply is switched off again if:
Rthe driver's door is opened Ryou press Start/Stop button : once
when in this position.
Removing the Start/Stop button
You can remove the Start/Stop button from the ignition lock and start the vehicle as nor- mal using the key. X Remove Start/Stop button : from ignition
lock ;.
i You do not have to remove the Start/Stop
button from the ignition lock when you leave the vehicle.
i It is only possible to switch between KEY- LESS-GO mode and key operation when the transmission is in position P.
i When you insert Start/Stop button : into ignition lock ;, the system needs approximately two seconds recognition time. You can then use Start/Stop but- ton :.
Starting the engine Important safety notes G WARNING Combustion engines emit poisonous exhaust gases such as carbon monoxide. Inhaling these exhaust gases leads to poisoning. There is a risk of fatal injury. Therefore never leave the engine running in enclosed spaces with- out sufficient ventilation.
! Do not depress the accelerator pedal
when starting the engine.
General notes i Vehicles with a petrol engine: the cat-
alytic converter is preheated for up to 30seconds after a cold start. The sound of the engine may change during this time.
Automatic transmission X Shift the transmission to position
P(Y page 151). 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 key X To start a petrol engine: turn the key to
position 3 in the ignition lock
(Y page 145) and release it as soon as the engine is running.
X To start a diesel engine: turn the key to
position 2 in the ignition lock (Y page 145). The % preglow indicator lamp in the instrument cluster lights up.
X When the % preglow indicator lamp
goes out, turn the key to position 3(Y page 145) in the ignition lock and release it as soon as the engine is running. i You can start the engine without preglow
if the engine is warm.
i To start the engine using the key instead of KEYLESS-GO, pull the Start/Stop button out of the ignition lock.
Using KEYLESS-GO to start the engine G WARNING Your vehicle can be started using a valid KEY- LESS-GO key. For this reason, children should never be left unsupervised in the vehicle. Always take the key with you when leaving the vehicle, even if you are only leaving it for a short time.
X Depress the brake pedal and keep it
depressed.
X To start a petrol engine: press the Start/
Stop button (Y page 145) once. The engine starts.
X To start a diesel engine: press the Start/
Stop button (Y page 145) once. Preglow is activated and the engine starts.
i The Start/Stop button can be used to
start the vehicle without inserting the key into the ignition lock. The key must be in the vehicle and the Start/Stop button must be inserted in the ignition lock.
Driving 147
Pulling away Automatic transmission G WARNING If the engine speed is above the idling speed and you engage transmission position D or R, the vehicle could pull away suddenly. There is a risk of an accident. When engaging transmission position D or R, always firmly depress the brake pedal and do not simultaneously accelerate.
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 159). X Release the brake pedal. X Carefully depress the accelerator 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 parking lock released.
i The vehicle locks centrally once you have pulled away. The locking knobs in the doors drop down. You can open the doors from the inside at any time. You can also deactivate the automatic lock- ing feature (Y page 204).
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 G WARNING After a short time, hill start assist will no lon- ger brake your vehicle and it could roll away. There is a risk of an accident and injury. Therefore, quickly move your foot from the brake pedal to the accelerator pedal. Never leave the vehicle when it is held by hill start assist.
148 Driving
X Take your foot off the brake pedal.
The vehicle is then held for about a second.
X Pull away. 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. 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 149
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 key 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. The starter motor can be heard. The reserve fuel warning lamp is lit and the fuel gauge display shows 0.
The engine does not start. You cannot hear the starter motor.
Vehicles with a petrol engine: The engine is not run- ning smoothly and is misfiring.
X Try to start the engine again (Y page 146). Avoid excessively
long and frequent attempts to start the engine, as this will drain the battery.
If the engine does not start after several attempts: X Consult a qualified specialist workshop. The fuel tank is empty. X Refuel the vehicle.
The on-board voltage is too low because the battery is too weak or discharged. X Jump-start the vehicle (Y page 304). If the engine does not start despite attempts to jump-start it: X Consult a qualified specialist workshop. 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. There is a malfunction in the engine electronics or in a mechanical component of the engine management system. X Only depress the accelerator pedal slightly.
Otherwise, non-combusted fuel may get into the catalytic con- verter and damage it.
X Have the cause rectified immediately at a qualified specialist
workshop.
150 Automatic transmission
Problem The coolant tempera- ture display is showing more than 120 †. A warning tone will also sound.
The engine can no lon- ger be switched off.
Possible causes/consequences and M Solutions 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 281). Observe the warning
notes as you do so and top up the coolant if necessary.
If the coolant level is correct, the radiator fan may be faulty. The coolant is too hot and the engine is no longer being cooled suffi- ciently. X If the coolant temperature is below 120 †, you can continue
driving to the nearest qualified specialist workshop.
X Avoid heavy loads on the engine as you do so, e.g. driving in
mountainous terrain and stop-start traffic.
The ignition lock is defective. X Open the fuse box in the engine compartment (Y page 310). X Use the fuse extractor to remove fuse 120.
The engine switches off.
When you want to start the engine again: X Replace the fuse.
DIRECT SELECT lever Overview of transmission positions
Automatic transmission Important safety notes G WARNING If the engine speed is above the idling speed and you engage transmission position D or R, the vehicle could pull away suddenly. There is a risk of an accident. When engaging transmission position D or R, always firmly depress the brake pedal and do not simultaneously accelerate.
P Park position with parking lock R Reverse gear N Neutral D Drive The DIRECT SELECT lever is on the right of the steering column.
i The DIRECT SELECT lever always returns to its original position. The current trans- mission position P, R, N or D appears in the transmission position display (Y page 151) in the multifunction display.
Engaging park position P ! If the engine speed is too high, do not shift
the automatic transmission directly from D to R, from R to D or directly to P. Other- wise, the automatic transmission could be damaged.
P Park position with parking lock R Reverse gear N Neutral D Drive X Push the DIRECT SELECT lever in the direc-
tion of arrow P.
i The automatic transmission shifts into
park position P automatically: Rif you open the driver's door while the
vehicle is stationary in transmission posi- tion D or R
Rif you open the door while travelling at
very low speeds in transmission position D or R
i Depressing the brake and pushing the DIRECT SELECT lever up or down disen- gages the parking lock. The transmission is in N neutral.
Automatic transmission 151
In order to shift from park position P directly into R or D: Rdepress the brake pedal and Rpush the DIRECT SELECT lever up or
down past the first point of resistance
Engaging reverse gear R ! Only shift the automatic transmission to
R when the vehicle is stationary.
X Push the DIRECT SELECT lever up past the
first point of resistance.
Shifting to neutral (N) X Push the DIRECT SELECT lever up or down
to the first point of resistance.
Engaging drive position D X Push the DIRECT SELECT lever down past
the first point of resistance.
Transmission position display ! If the transmission position display in the
multifunction display is not working, you should pull away carefully to check whether the desired transmission position is engaged. Ideally, you should select trans- mission position D and drive program E or S. Do not restrict the shift range.
: Transmission position The current transmission position is shown in the multifunction display. i The arrows in the transmission position display show how and into which transmis- sion positions you can change using the DIRECT SELECT lever.
152 Automatic transmission
Transmission positions B Park position
This prevents the vehicle from roll- ing away when stopped. Do not shift the transmission into position P (Y page 158) unless the vehicle is stationary. The automatic transmission shifts to P automatically if you: Rremove the key Rswitch off the engine when in R or D and open one of the front doors
C Reverse gear
Only shift the transmission to R when the vehicle is stationary.
A Neutral
Do not shift the transmission to N while driving. Otherwise, the auto- matic transmission could be dam- aged. No power is transmitted from the engine to the drive wheels. Releasing the brakes will allow you to move the vehicle freely, e.g. to push it or tow it. If ESP® is deactivated or faulty: only shift the transmission to posi- tion N if the vehicle is in danger of skidding, e.g. on icy roads. If you switch off the engine using the key or the Start/Stop button, the automatic transmission shifts to neutral N automatically. ! Rolling in neutral N can lead to
damage to the transmission.
7 Drive
The automatic transmission changes gear automatically. All forward gears are available.
Changing gear The automatic transmission shifts to the indi- vidual gears automatically when it is in trans- mission position D. Gearshifting is deter- mined by: Ra shift range restriction, if selected Rthe selected drive program
E/S (Y page 153)
Rthe position of the accelerator pedal Rthe road speed
Driving tips Accelerator pedal position Your style of driving influences how the auto- matic transmission shifts gear: Rlittle throttle: early upshifts Rmore throttle: late upshifts
Kickdown Use kickdown for maximum acceleration: X Depress the accelerator pedal beyond the
pressure point. The transmission shifts to a lower gear depending on the engine speed.
X Ease off the accelerator pedal once the
desired speed is reached. The automatic transmission shifts back up.
Towing a trailer X Drive in the middle of the engine speed
range on uphill gradients.
X Shift down to shift range 3 or
2 (Y page 154) depending on the uphill or downhill gradient, even if cruise control, DISTRONIC PLUS or SPEEDTRONIC is acti- vated.
Program selector button General notes
Automatic transmission 153
Steering wheel gearshift paddles
Program selector button X Press program selector button : repeat- edly until the letter for the desired gearshift program appears in the multifunction dis- play.
The program selector button allows you to choose between different driving character- istics. i The automatic transmission switches to automatic drive program E each time the engine is started.
i All models with a diesel engine: to
reduce the demand placed on the torque converter, the vehicle pulls away in first gear regardless of the gearshift program selected. E Economy
Comfortable, economical driving Sporty driving style
S Sport
i For further information on the automatic
drive program, see (Y page 153).
: Left-hand steering wheel gearshift paddle ; Right-hand steering wheel gearshift pad-
dle
You can restrict or derestrict the shift range by using the steering wheel gearshift paddles.
Automatic drive program Drive program E is characterised by the fol- lowing: Rcomfort-oriented engine settings. Roptimal fuel consumption resulting from the automatic transmission shifting up sooner
Rthe vehicle pulling away more gently in forward and reverse gears, unless the accelerator pedal is depressed fully
Rincreased sensitivity. This improves driving
stability on slippery road surfaces, for example
Rthe automatic transmission shifting up sooner. This results in the vehicle being driven at lower engine speeds and the wheels being less likely to spin
Drive program S is characterised by the fol- lowing: Rsporty engine settings Rthe vehicle pulling away in first gear
154 Automatic transmission
i If the maximum engine speed for the shift range is reached and you continue to accel- erate, the automatic transmission shifts up, even if the shift range is restricted.
Clearing the shift range restriction X Pull the right-hand steering wheel gearshift paddle until the number for the gear disap- pears from the multifunction display.
or X Shift the transmission to position D.
The automatic transmission shifts from the current shift range directly to D.
Selecting the ideal shift range X Pull the left-hand steering wheel gearshift
paddle and hold it in position. The automatic transmission shifts to the gear which allows optimum acceleration and deceleration. To do this, the automatic transmission shifts down one or more gears.
Rthe automatic transmission shifting up
later
Ras a result of the later automatic transmis- sion shift points, the fuel consumption pos- sibly being higher
Shift ranges Introduction When the automatic transmission is in posi- tion D, it is possible to restrict or derestrict the shift range (Y page 154). The shift range selected is shown in the mul- tifunction display. The automatic transmis- sion shifts only as far as the selected gear. Shift range = To use the engine's braking effect 5 To use the braking effect of the
engine on downhill gradients and for driving: Ron steep mountain roads Rin mountainous terrain Rin arduous conditions
4 To use the braking effect of the
engine on extremely steep downhill gradients and on long downhill stretches
Restricting the shift range/shifting down X Pull the left-hand steering wheel gearshift
paddle.
i If the engine exceeds the maximum
engine speed when shifting down, the auto- matic transmission protects against engine damage by not shifting down.
Derestricting the shift range/shifting up X Pull the right-hand steering wheel gearshift
paddle.
Refuelling 155
Problems with the transmission Problem The transmission has problems shifting gear.
Possible causes/consequences and M Solutions The transmission is losing oil. X Have the transmission checked at a qualified specialist work-
shop immediately.
The acceleration ability is deteriorating. The transmission no longer changes gear.
The transmission is in emergency mode. It is only possible to shift into second gear and reverse gear. X Stop. X Shift the transmission to position P. X Switch off the engine. X Wait at least ten seconds before restarting the engine. X Have the transmission checked at a qualified specialist work-
shop immediately.
! Do not switch on the ignition if you acci- dentally refuel with the wrong fuel. Other- wise, the fuel will enter the fuel lines. Notify a qualified specialist workshop and have the fuel tank and fuel lines drained com- pletely.
! Overfilling the fuel tank could damage the
fuel system.
! Take care not to spill any fuel on painted surfaces. You could otherwise damage the paintwork.
! Use a filter when adding fuel from a fuel can. The fuel lines and/or the diesel injec- tion system could otherwise be blocked by particles from the fuel can.
Further information on fuel and on fuel grades can be found in the "Fuel" section (Y page 339).
Refuelling Important safety notes G WARNING Fuel is highly flammable. Fire, naked flames and smoking are therefore prohibited when handling fuels. Switch off the engine and the auxiliary heating before refuelling. G WARNING Avoid contact with fuels. It is hazardous to your health if your skin comes into direct contact with fuels or you breathe in fuel vapours. G WARNING Do not use petrol to refuel a diesel tank. Never mix diesel with petrol. Doing so could damage the fuel system and the engine. The vehicle could also catch fire.
! Do not use petrol to refuel vehicles with a diesel engine. Do not use diesel to refuel vehicles with a petrol engine. Even small amounts of the wrong fuel result in damage to the fuel system and the engine.
156 Refuelling
Refuelling Opening/closing the fuel filler flap
: To open the fuel filler flap ; To insert the fuel filler cap = Fuel type to be refuelled ? Tyre pressure table The fuel filler flap is unlocked or locked auto- matically when you open or close the vehicle with the key or using KEYLESS-GO. The position of the fuel filler cap is displayed 8 in the instrument cluster. The arrow next to the filling pump indicates the side of the vehicle.
Opening X Switch off the engine. X Remove the key from the ignition lock. X KEYLESS-GO: open the driver’s door.
This corresponds to key position 0: "key removed". The driver’s door can be closed again.
X Press the fuel filler flap in the direction of
arrow :. The fuel filler flap opens slightly.
X Open the fuel filler flap fully. X Turn the fuel filler flap anti-clockwise and
remove it.
X Insert the fuel filler cap into the holder bracket on the inside of filler flap ;.
X Completely insert the filler neck of the fuel
pump nozzle into the tank and refuel. X Only fill the tank until the pump nozzle
switches off.
i Do not add any more fuel after the pump
stops filling for the first time. Otherwise, fuel may leak out.
Closing X Replace the cap on the filler neck and turn
clockwise until it engages audibly.
X Close the fuel filler flap. i Close the fuel filler flap before locking the vehicle. Otherwise, the locking pin of the central locking prevents the fuel filler flap from closing.
Fuel filler flap emergency release X Open the tailgate.
X Open the right-hand side trim panel
(Y page 119).
X Pull emergency release : in the direction
of the arrow. The fuel filler flap is released.
X Open the fuel filler flap.
Problems with the fuel and fuel tank Problem Fuel is leaking from the vehicle.
The engine does not start.
The fuel filler flap can- not be opened.
Refuelling 157
Possible causes/consequences and M Solutions G Risk of explosion or fire The fuel line or the fuel tank is faulty. X Turn the key to position 0 in the ignition lock immediately and
remove it (Y page 145).
X Do not restart the engine under any circumstances. X Consult a qualified specialist workshop. The fuel tank of a vehicle with a diesel engine has been run com- pletely dry. X Refuel the vehicle with at least 5 litres of diesel. X Turn the ignition on for approximately ten seconds
X Start the engine continuously for a maximum of ten seconds
(Y page 145).
until it runs smoothly.
If the engine does not start: X Turn the ignition on again a maximum of ten seconds
(Y page 145).
X Start the engine again continuously for a maximum of ten sec-
onds until it runs smoothly.
If the engine does not start after three attempts: X Consult a qualified specialist workshop. The fuel filler flap is not unlocked. or The key battery is discharged. X Unlock the vehicle using the emergency key element
X Open the tailgate. X Manually unlock the fuel filler flap using the emergency release
(Y page 72).
(Y page 156).
The fuel filler flap is unlocked, but the opening mechanism is jam- med. X Consult a qualified specialist workshop.
158 Parking
Parking Important safety notes G WARNING If flammable materials such as leaves, grass
