Refuelling the vehicle
WARNING Risk of fire or explosion from fuel
Fuels are highly flammable.
Fire, naked flames, smoking and creation of sparks must be avoided.
Switch off the ignition and, if available, the stationary heater, before and while refuelling the 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 ignite fuel vapour.
Before you open the fuel filler cap or take hold of the pump nozzle, touch the metallic vehicle body.
To avoid creating another electrostatic charge, do not get into the vehicle again during the refuelling process.
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.
Fuel of this specification may contain up to 10% ethanol. Your vehicle is suitable for use with E10 fuel.
Never refuel with one of the following fuels:
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 have accidentally refuelled 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 have accidentally refuelled with the wrong fuel:
do not switch the ignition on. 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.
Consult 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 and fuel.
The recommended octane number for your vehicle can be found on the information label in the fuel filler flap.
Press on the back area of fuel filler flap .
. Turn the fuel filler cap anti-clockwise and remove it.
Insert the fuel filler cap from above 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.
Replace the cap on the filler neck and turn clockwise until it engages audibly.
Close fuel filler flap .
. Close the fuel filler flap before locking the vehicle.
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 display More
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 the windscreen washer system
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.
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 into the replacement position
Switch the ignition on and switch off again immediately.
Within around 15 seconds, press and hold the 
button on the combination switch for approximately three seconds More.
button on the combination switch for approximately three seconds More. The wiper arms will move into the replacement position.
Replacing the windscreen wiper blades
Observe the information about the maintenance display.
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. When 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 on-board computer
Requirements:
The engine has been warmed up.
The vehicle is parked on a level surface.
The engine is running at idle speed.
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.
You will see one of the following messages on 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 on 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 on the multifunction display is orange and is below "min":
Add 1 l of engine oil.
Reduce engine oil level and the bar display for indicating the oil level on the multifunction display is orange and is above "max":
Drain off any excess engine oil that has been added. To do so, 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: The oil level sensor is defective or not connected.
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 from automatic braking
If one of the following functions is switched on, the vehicle brakes automatically in certain situations:
Active Brake Assist
Active Distance Assist DISTRONIC
HOLD function
Active Parking Assist
To avoid damage to the vehicle, deactivate these systems in the following or similar situations:
during towing
in a car wash
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 is deactivated.
The HOLD function is switched off.
the 360° Camera or the reversing camera is switched off.
the extendable rear wing is completely retracted.
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 park position 
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.