Starting an automatic filling station search
Requirements:
The automatic filling station search is activated
More.
Driving situation
Route guidance is active. The fuel level in the fuel tank reaches the reserve fuel level.
The Fuel tank reserve level Do you want to start the search for filling stations? message is shown.
Select Yes.
The automatic filling station search begins. The available filling stations along the route or in the vicinity of the vehicle's current position are displayed.
Select the filling station.
The address of the filling station is displayed.
If route guidance is not active, select Start route guidance.
The selected filling station is set as the destination. Route guidance begins.
or
If route guidance is active, select Start new route guidance or Set as next intermediate destination.
Start new route guidance: the selected filling station is set as a new destination. The previous destinations and intermediate destinations are deleted. Route guidance to the filling station begins.
Set as next intermediate destination: the selected filling station is set as the next intermediate destination. Route guidance begins.
If there are already four intermediate destinations:
select Yes in the prompt. The selected filling station is entered into position 1 of the intermediate destinations menu. Intermediate destination 4 is deleted. Route guidance begins.
Location of the fuel filler flap
The fuel filler flap is unlocked/locked automatically when you unlock/lock the vehicle with the key.
The location of fuel filler flap is displayed in the instrument cluster. The arrow next to the fuel pump indicates on which side of the vehicle it is located:
The fuel filler flap is on the right side of the vehicle. 
The fuel filler flap is on the left side of the vehicle.
Refuelling the vehicle
WARNING Risk of fire or explosion from fuel
Fuels are highly flammable.
Fire, naked flames, smoking and creating sparks must be avoided.
Switch off the ignition and, if it has been in use, switch off the stationary heater before you refuel your vehicle.
WARNING Risk of injury from fuels
Fuels are poisonous and hazardous to your health.
Do not swallow fuel or let it come into contact with skin, eyes or clothing.
Do not inhale fuel vapour.
Keep children away from fuel.
Keep doors and windows closed during the refuelling process.
If you or other people come into contact with fuel, observe the following:
Immediately rinse fuel off your skin with soap and water.
If fuel comes into contact with your eyes, immediately rinse them thoroughly with clean water. Seek medical attention immediately.
If you swallow fuel, seek medical attention immediately. Do not induce vomiting.
Change immediately out of clothing that has come into contact with fuel.
WARNING Risk of fire and explosion due to electrostatic charge
Electrostatic charge can create sparks and thereby ignite fuel vapours.
Before you open the fuel filler cap or take hold of the pump nozzle, touch the metallic vehicle body.
This discharges any electrostatic charge that may have built up.
Do not get into the vehicle again during the refuelling process.
Otherwise, electrostatic charge could build up again.
WARNING Risk of fire from fuel mixture
Vehicles with a diesel engine:
If you mix diesel fuel with petrol, the flash point of the fuel mixture is lower than that of pure diesel fuel.
While the engine is running, component parts in the exhaust system may overheat without warning.
Never refuel using petrol.
Never mix petrol with diesel fuel.
NOTE Damage caused by the wrong fuel
Fuel that does not conform to the required quality can lead to increased wear as well as damage to the engine and exhaust system.
Only use the fuel recommended.
NOTE Damage caused by the wrong fuel
Vehicles with a petrol engine:
Even small amounts of the wrong fuel could result in damage to the fuel system, the engine and the emission control system.
Only refuel using unleaded, sulphur-free fuel that conforms to European EN 228, or an equivalent specification.
The RON requirement is located in the fuel filler flap.
Fuel of this specification may contain up to 10% ethanol. Your vehicle is suitable for use with E10 fuel.
Never refuel using:
diesel
regular petrol with an octane number lower than 91 RON
petrol with more than 10% ethanol by volume, e.g. E15, E20, E85, E100
petrol with more than 3% methanol by volume, e.g. M15, M30
petrol with additives containing metal
If you accidentally refuel with the wrong fuel:
Do not switch the ignition on.
Consult a qualified specialist workshop.
NOTE Damage caused by the wrong fuel
Vehicles with a diesel engine:
Even small amounts of the wrong fuel could result in damage to the fuel system, the engine and the emission control system.
Only refuel using sulphur-free diesel fuel that conforms to European standard EN 590, or an equivalent specification.
In countries without sulphur-free diesel fuel, only refuel with low-sulphur diesel fuel with a sulphur content less than 50 ppm.
Vehicles without diesel particulate filter: refuel using only diesel fuel with a sulphur content less than 500 ppm.
Never refuel using:
petrol
marine diesel
heating oil
pure bio-diesel fuel or vegetable oil
paraffin or kerosene
If you accidentally refuel with the wrong fuel:
do not switch the ignition on.
consult a qualified specialist workshop.
NOTE Do not use diesel to refuel vehicles with a petrol engine.
If you accidentally refuel with the wrong fuel:
Do not switch on the ignition. Otherwise fuel can enter the engine.
Even small amounts of the wrong fuel could result in damage to the fuel system and the engine. The repair costs are high.
Contact a qualified specialist workshop.
Have the fuel tank and fuel lines drained completely.
NOTE Do not use petrol to refuel vehicles with a diesel engine.
If you accidentally refuel with the wrong fuel:
Do not switch on the ignition. Otherwise, fuel can enter the fuel system.
Even small amounts of the wrong fuel could result in damage to the fuel system and the engine. The repair costs are high.
Contact a qualified specialist workshop.
Have the fuel tank and fuel lines drained completely.
NOTE Damage to the fuel system caused by overfilled fuel tanks.
Only fill the fuel tank until the pump nozzle switches off.
NOTE Fuel may spray out when you remove the fuel pump nozzle.
Only fill the fuel tank until the pump nozzle switches off.
Requirements:
The vehicle is unlocked.
Do not get into the vehicle again during the refuelling process. Otherwise, electrostatic charge could build up again.
Observe the notes on operating fluids More.
Press fuel filler flap .
. Turn the fuel filler cap anti-clockwise and remove it.
Insert the fuel filler cap into bracket .
. Completely insert the pump nozzle into the tank filler neck, hook in place and refuel.
Only fill the fuel tank until the pump nozzle switches off.
Vehicles with a diesel engine: the filler neck is designed for refuelling at diesel filling pumps.
Vehicles with a diesel engine: when the fuel tank is completely empty, top up with at least 5 litres of diesel.
Vehicles with a diesel engine: use a filler neck with a large diameter for vehicles with a diesel engine when topping up fuel from a fuel can. Otherwise, the filler neck cannot slide into the tank.
Resetting values on the trip menu of the on-board computer
The spelling on the main menu displayed may differ. Therefore, observe the menu overview for the instrument display More.
You can reset the values of the following functions:
Trip distance
Trip computer From start and From reset
ECO displayMore
To select the function to be reset:
swipe upwards or downwards on the left-hand Touch Control. Press the left-hand Touch Control.
Select Yes .
Press the left-hand Touch Control.
If you press and hold the left-hand Touch Control, the values of the function will be reset immediately.
Topping up AdBlue®
NOTE Engine damage due to AdBlue® being in the fuel
AdBlue® must not be used to fill the fuel tank.
Only use AdBlue® to fill the AdBlue® tank.
Do not overfill the AdBlue® tank.
NOTE Contamination of the vehicle interior due to AdBlue® leakage
After topping up, carefully close the AdBlue® refill container.
Avoid carrying AdBlue® refill containers permanently in the vehicle.
Requirements:
Unlock the vehicle.
The following messages appear in order in the multifunction display when the AdBlue® tank requires refilling:
Refill AdBlue See Owner's Manual. The AdBlue® tank is down to the reserve level.
Refill AdBlue No start in XXX km . You can only drive the vehicle over the distance shown. Refill AdBlue® as soon as possible.
Refill AdBlue Start not possible. The vehicle can no longer be started.
You can see the AdBlue® range and level in the multifunction display More.
The AdBlue® range shown depends strongly on the driving style and operating conditions. The actual range can therefore deviate from the calculated range.
Opening the AdBlue® filler cap
Press fuel filler flap .
. Turn AdBlue® filler cap anti-clockwise and remove it.
anti-clockwise and remove it. Preparing the AdBlue® refill canister
Screw on the fastener of AdBlue® refill canister .
. Screw disposable hose onto the opening of AdBlue® refill canister until hand-tight.
onto the opening of AdBlue® refill canister until hand-tight. Topping up AdBlue®
Screw disposable hose onto the filler neck of the vehicle until hand-tight.
onto the filler neck of the vehicle until hand-tight. Lift up and tip AdBlue® refill canister .
. The filling process stops when the AdBlue® tank is completely full.
AdBlue® refill canister can be removed when it has been only partially emptied.
Unscrew and close disposable hose and AdBlue® refill canister in reverse order.
and AdBlue® refill canister in reverse order. Switch on the ignition for at least 60 seconds.
Start the vehicle.
Avoid storing AdBlue® refill containers permanently in the vehicle.
Topping up the windscreen washer system
WARNING Danger of burns from hot component parts in the engine compartment
Certain component parts in the engine compartment may be very hot, e.g. the engine, the radiator and parts of the exhaust system.
Let the engine cool down and only touch the component parts described below:
WARNING Danger of burns when opening the bonnet
If you open the engine bonnet when the engine has overheated or during a fire in the engine compartment, you could come into contact with hot gases or other escaping operating fluids.
Before opening the bonnet, allow the engine to cool down.
In the event of a fire in the engine compartment, keep the engine bonnet closed and call the fire service.
WARNING ‑ Risk of fire and injury due to windscreen washer concentrate
Windscreen washer concentrate is highly flammable. It could ignite if it comes into contact with hot engine component parts or the exhaust system.
Make sure that no windscreen washer concentrate spills out next to the filler opening.
Remove cap by the tab.
by the tab. Top up the washer fluid.
Replacing the windscreen wiper blades
WARNING Risk of becoming trapped if the windscreen wipers are switched on while wiper blades are being replaced
If the windscreen wipers begin to move while you are changing the wiper blades, you can be trapped by the wiper arm.
Always switch off the windscreen wipers and ignition before changing the wiper blades.
Moving the wiper arms to the change position
Switch the ignition on and switch off again immediately.
Within around 15 seconds, press button 
on the combination switch for approximately three seconds More.
on the combination switch for approximately three seconds More. The wiper arms will move into the change position.
Maintenance display
Remove protective film from the maintenance display on the tip of the newly fitted wiper blades.
from the maintenance display on the tip of the newly fitted wiper blades. If the colour of the maintenance display changes from black to yellow, the wiper blades should be replaced.
The duration until the colour changes varies depending on the usage conditions.
Checking the engine oil level using the oil dipstick
WARNING Risk of burns from hot component parts in the engine compartment
Certain components in the engine compartment can be very hot, e.g. the engine, the radiator and parts of the exhaust system.
Allow the engine to cool down and only touch component parts described in the following.
Requirements:
the engine must have an oil dipstick. If not, the engine oil level can be checked only with the on-board computer More.
Depending on the engine, the oil dipstick may be installed in the engine compartment in different locations.
The waiting time before checking the oil level when the engine is at normal operating temperature is five minutes.
Park the vehicle on a level surface.
Pull oil dipstick out and wipe off.
out and wipe off. Slowly slide oil dipstick into the guide tube to the stop, and take it out again after approximately three seconds.
into the guide tube to the stop, and take it out again after approximately three seconds. Oil level is correct: oil level is between
and . Oil level too low: oil level is at
or below. Oil level too high: oil level is above
.
If the oil level is too low, top up with 1 litre of engine oil.
If the oil level is too high, drain off excess engine oil. Consult a qualified specialist workshop.
Checking the engine oil level with an on-board computer
Requirements:
the engine oil level is determined during driving. Determining the engine oil level can take up to 30 minutes with a normal driving style and even longer with an active driving style.
In order to receive a result as quickly as possible:
warm up the engine.
park the vehicle on a level surface.
leave the engine running at idle speed.
You will see one of the following messages in the multifunction display:
Engine oil level Measuring now: measurement of the oil level is not yet possible. Repeat the request after a maximum of 30 minutes' driving.
Engine oil level OK and the bar display for indicating the oil level in the multifunction display is green and is between "min" and "max": the oil level is correct.
Engine oil level Add 1.0 l and the bar display for indicating the oil level in the multifunction display is orange and is below "min": top up with 1 l of engine oil.
Reduce engine oil level and the bar display for indicating the oil level in the multifunction display is orange and is above "max": drain off the excess engine oil. Consult a qualified specialist workshop.
For engine oil level turn on ignition: switch on the ignition to check the engine oil level.
Engine oil level System inoperative: sensor faulty or not inserted. Consult a qualified specialist workshop.
Engine oil level System currently unavail.: close the bonnet.
Information on washing the vehicle in a car wash
WARNING Risk of an accident due to reduced braking power after washing the vehicle
Braking efficiency is reduced after washing the vehicle.
After the vehicle has been washed, brake carefully while paying attention to the traffic conditions until braking power has been fully restored.
NOTE Damage due to unsuitable car wash
Before driving into a car wash make sure that the car wash is suitable for the vehicle dimensions.
Ensure there is sufficient ground clearance between the underbody and the guide rails of the car wash.
Ensure that the clearance width of the car wash, in particular the width of the guide rails, is sufficient.
To avoid damage to your vehicle when using a car wash, ensure the following beforehand:
Active Distance Assist DISTRONIC and the HOLD function are deactivated.
the 360° Camera or the reversing camera is switched off.
the side windows and sliding sunroof are completely closed.
the blower for the ventilation/heating is switched off.
the windscreen wiper switch is in position
. the key is at a minimum distance of 3 m away from the vehicle, otherwise the tailgate could open unintentionally.
in car washes with a conveyor system: neutral
is engaged.
In car washes with a conveyor system: if you would like to leave the vehicle while it is being washed, make sure the key is located in the vehicle. The 
gear is otherwise automatically engaged.
If, after the car wash, you remove the wax from the windscreen and wiper rubbers, this will prevent smearing and reduce wiper noise.