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.
Before refuelling, switch off the vehicle and, if fitted, the stationary heater and keep switched off during filling.
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.
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 vehicle is running, component parts in the exhaust system may overheat without warning.
Never refuel using petrol.
Never mix petrol with diesel fuel.
NOTE Do not use petrol to refuel vehicles with a diesel engine
If you have accidentally refuelled with the wrong fuel:
Do not switch on the vehicle. 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.
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.
Note Damage to painted surfaces due to fuel
Do not spill any fuel on painted surfaces.
ENVIRONMENTAL NOTE Environmental damage due to improper handling of fuel
If fuels are handled improperly, they pose a danger to persons and the environment.
Do not allow fuels to run into the sewage system, the surface waters, the ground water or into the ground.
Requirements:
The vehicle is unlocked.
The auxiliary heating is switched off.
The vehicle is switched off.
The front left-hand door is open.
Do not get back into the vehicle during the refuelling process. Otherwise, electrostatic charge could build up again.
Observe the notes on operating fluids More.
The fuel filler flap is beside the front left-hand door when viewed in the direction of travel. The position of the fuel filler cap is also shown on the instrument cluster 
. The arrow on the filling pump specifies the side of the vehicle.
Open fuel filler flap .
. Turn fuel filler cap anti-clockwise and remove it.
anti-clockwise and remove it. Close all vehicle doors to prevent fuel vapours from entering the vehicle interior.
Completely slide the filler neck of the pump nozzle into the tank, hook in place and refuel.
Fill the fuel tank only until the pump nozzle switches off.
Replace fuel filler cap and turn it clockwise.
and turn it clockwise. You will hear a click when the fuel filler cap is closed fully.
Open the front left-hand door.
Close fuel filler flap .
. Vehicles with a diesel engine and incorrect fuelling protector against refuelling with petrol: the filler neck is designed for refuelling at diesel filling pumps for passenger vehicles.
Vehicles with a diesel engine without an incorrect fuelling protector: refuelling preferred at diesel filling pumps for passenger vehicles. However, you can also refuel at a diesel filling pump for lorries.
If the fuel tank has been run completely dry, top up with at least
Vehicles that can use a mixture of fuels can be recognised by the sticker "Ethanol up to E85!" on the fuel filler flap.
Resetting values in the trip menu of the on-board computer
The spelling of the displayed main menu may differ. Therefore, pay attention to the menu overview for the instrument cluster More.
You can reset the values of the following functions:
Trip distance:
Reset trip meter?
Trip computer:
From start
From reset
ECO display
Select the function for which the value is to be reset and confirm this selection.
Confirm the Reset values? prompt with Yes.
Checking the tyre pressure with the tyre pressure monitoring system
Requirements:
The vehicle is switched on.
One of the following displays appears:
The current tyre pressure and tyre temperature of the individual wheels.
Instrument cluster display (colour)
The current tyre pressure for each wheel.
Instrument cluster display (black and white)
Tyre pressures will be displayed after a few minutes of driving: the teach-in process of the system is not yet complete. The tyre pressures are already being monitored.
The values displayed in the instrument cluster display may deviate from those of the tyre pressure gauge, as they refer to sea level. At high elevations, the tyre pressure values indicated by a pressure gauge are higher than those shown by the on-board computer. In this case, do not reduce the tyre pressures.
Bear in mind the following related topic:
Notes on tyre pressure More
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:
The vehicle is switched off.
Vehicles with passenger vehicle approval: the following messages that appear in succession in the instrument cluster display indicate that you need to top up the AdBlue® tank:
Top up AdBlue See Owner's Manual
The AdBlue® tank level has dropped to the reserve level.
Top up AdBlue Emergency operation in XXX km
You will only be able to drive the vehicle the distance shown. Top up AdBlue® as quickly as possible.
Top up AdBlue Emergency oper.: 12 mph No start in XXX miles
The vehicle speed is limited to approximately
20 km/h . You will only be able to drive the vehicle the distance shown. Subsequently, it will no longer be possible to start the vehicle.Refill AdBlue Engine start not possible
The vehicle can no longer be started.
Vehicles with commercial vehicle approval: the following messages that appear in succession in the instrument cluster display indicate that you need to top up the AdBlue® tank:
Top up AdBlue See Owner's Manual
The AdBlue® tank level has dropped to the reserve level.
Top up AdBlue Perf. reduced
Top up AdBlue Emergency operation after engine restart: max. 12 mph
The vehicle cannot be driven at a speed exceeding
20 km/h after the vehicle has been restarted.Top up AdBlue Emergency operation: max. 12 mph
The vehicle cannot be driven at a speed exceeding
20 km/h .
With a prompt in the display | at least 8 l |
Without a prompt in the display | at least 2 l |
You can also have the AdBlue® level displayed More.
Opening the AdBlue® filler cap on filler caps that are not lockable
Open the bonnet.
Turn AdBlue® filler cap anti-clockwise and remove it.
anti-clockwise and remove it. Opening the AdBlue® filler cap on lockable filler caps
Open the bonnet.
Take tool 
for unlocking AdBlue® filler cap from the vehicle tool kit.
for unlocking AdBlue® filler cap from the vehicle tool kit. Pull cover 
on AdBlue® filler cap up, turn 90° and release it.
on AdBlue® filler cap up, turn 90° and release it. Insert tool in holes of AdBlue® filler cap .
in holes of AdBlue® filler cap . Turn AdBlue® filler cap anti-clockwise and remove it.
anti-clockwise and remove it. Preparing the AdBlue® refill canister
Variant 1
Variant 2
Unscrew the cap on 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®
Variant 1
Variant 2
Screw on hand-tight (variant 1) or insert (variant 2) disposable hose into the filler neck of the vehicle.
into the filler neck of the vehicle. 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 disposable hose and close AdBlue® and refill canister in reverse order.
and close AdBlue® and refill canister in reverse order. Switch on the vehicle for at least 60 seconds.
Start the vehicle.
Avoid storing AdBlue® containers permanently in the vehicle.
AdBlue® refill bottle
Only screw the AdBlue® refill bottle hand-tight onto the filler opening in the engine compartment. It may otherwise be damaged.
AdBlue® refill bottles can be obtained at many filling stations or at a qualified specialist workshop. Refill bottles without a threaded cap offer no overfill protection. AdBlue® may leak out as a result of overfilling. Mercedes-Benz offers special refill bottles with a threaded cap. You can obtain these from a Mercedes-Benz Service Centre.
Unscrew the protective cap from AdBlue® refill bottle .
. Place AdBlue® refill bottle as shown on filler opening and screw it on clockwise until hand-tight.
as shown on filler opening and screw it on clockwise until hand-tight. Press AdBlue® refill bottle towards filler opening .
towards filler opening . The AdBlue® tank is filled. This could take up to one minute.
When the AdBlue® refill bottle is no longer pressed down, filling stops. The bottle can be removed when it has been only partially emptied.
Let go of AdBlue® refill bottle .
. Turn AdBlue® refill bottle anti-clockwise and remove it.
anti-clockwise and remove it. Screw the protective cap onto AdBlue® refill bottle again.
again. Filling procedure with the pump nozzle of an AdBlue® filling pump
Insert the pump nozzle into the filler neck and top up with AdBlue®. When doing so, do not overfill the AdBlue® tank. You can also use an AdBlue® filling pump for lorries.
Closing the AdBlue® filler cap on filler caps that are not lockable
After filling the AdBlue® tank, place AdBlue® filler cap on the filler neck and tighten by turning it clockwise.
on the filler neck and tighten by turning it clockwise. Turn the AdBlue® filler cap until the lettering is legible and horizontal.
The filler neck is only locked correctly when this is the case.
Close the bonnet.
Closing the AdBlue® filler cap on lockable filler caps
After filling the AdBlue® tank, place AdBlue® filler cap on the filler neck and tighten by turning it clockwise.
on the filler neck and tighten by turning it clockwise. Remove tool from AdBlue® filler cap and store it in the vehicle tool kit.
from AdBlue® filler cap and store it in the vehicle tool kit. Pull cover on AdBlue® filler cap up over holes of AdBlue® filler cap , turn and release.
on AdBlue® filler cap up over holes of AdBlue® filler cap , turn and release. Turn AdBlue® filler cap .
. If AdBlue® filler cap turns freely, the AdBlue® tank is closed.
Filling 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.
If you have to carry out any work in the engine compartment, touch only the following components:
bonnet
engine oil filler opening cap
washer fluid reservoir cap
coolant expansion reservoir cap
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.
Topping up the washer fluid
Washer fluid reservoir (example)
Pre-mix the washer fluid in the correct mixing ratio in a container.
Park the vehicle on a level surface and secure it against rolling away More.
Open the bonnet More.
Pull the cap of the washer fluid container upwards by the tab.
upwards by the tab. Pour in the pre-mixed washer fluid.
Press the cap onto the filler opening until it audibly engages.
onto the filler opening until it audibly engages. Close the bonnet More.
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 vehicle before changing the wiper blades.
WARNING Risk of injury from using the windscreen wipers when the bonnet is open
If the windscreen wipers start moving when the bonnet is open, you could be trapped by the wiper linkage.
Always switch off the windscreen wipers and vehicle before opening the engine bonnet.
Replacing the wiper blades
If the wiper blades are worn out, they will no longer wipe the windscreen properly. Replace the wiper blades twice a year, preferably in spring and autumn.
Fold wiper arm away from the windscreen.
away from the windscreen. Hold wiper arm and turn the wiper blade away from wiper arm in the direction of the arrow as far as it will go.
and turn the wiper blade away from wiper arm in the direction of the arrow as far as it will go. Slide catch upwards in the direction of the arrow until it engages.
upwards in the direction of the arrow until it engages. Fold the wiper blade back onto the wiper arm.
Remove the wiper blade from the wiper arm.
from the wiper arm. Insert new wiper blade in the holder on wiper arm .
in the holder on wiper arm . When doing so, take into account the different lengths of the wiper blades:
Driver's side: long wiper blade
Front passenger side: short wiper blade
Slide catch downwards until it engages.
downwards until it engages. Fold wiper arm back onto the windscreen.
back onto the windscreen. Replacing the windscreen wiper blades (WET WIPER SYSTEM)
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 vehicle before changing the wiper blades.
WARNING Risk of injury from using the windscreen wipers when the bonnet is open
If the windscreen wipers start moving when the bonnet is open, you could be trapped by the wiper linkage.
Always switch off the windscreen wipers and vehicle before opening the engine bonnet.
Replacing the wiper blades
If the wiper blades are worn out, they will no longer wipe the windscreen properly. Replace the wiper blades twice a year, preferably in spring and autumn.
Fold wiper arm away from the windscreen.
away from the windscreen. Hold wiper arm and turn the wiper blade away from wiper arm in the direction of the arrow as far as it will go.
and turn the wiper blade away from wiper arm in the direction of the arrow as far as it will go. Slide catch upwards in the direction of the arrow until it engages.
upwards in the direction of the arrow until it engages. Remove wiper blade from the wiper arm in the direction of arrow .
from the wiper arm in the direction of arrow . Carefully remove hose 
from the wiper blade.
from the wiper blade. Attach hose to the new wiper blade.
to the new wiper blade. Insert new wiper blade in the holder on wiper arm .
in the holder on wiper arm . When doing so, take into account the different lengths of the wiper blades:
Driver's side: long wiper blade
Front passenger side: short wiper blade
Slide catch downwards until it engages.
downwards until it engages. Fold the wiper blade back onto the wiper arm.
Fold wiper arm back onto the windscreen.
back onto the windscreen. Checking the engine oil level with the on-board computer
Requirements:
The vehicle is level during the measuring process.
The bonnet is closed.
Depending on the driving profile, the oil level can be displayed only after a driving time of up to 30 minutes and only when the vehicle is switched on.
One of the following messages appears on the instrument cluster:
Engine oil level Measuring now: measurement of the oil level is not yet possible. Repeat the query after driving for a maximum of 30 minutes.
Engine oil level OK and the bar indicating the oil level on the instrument cluster is green and is between "min" and "max": the oil level is correct.
Engine oil level Warm up the engine: warm up the engine to operating temperature.
Engine oil level Correct measurement only if vehicle is on level ground: park the vehicle on a level surface.
Engine oil level Top up 1,0 l and the bar indicating the oil level on the instrument cluster is orange and lies below "MIN": add 1 l of engine oil.
Reduce engine oil level and the bar indicating the oil level on the instrument cluster is orange and lies above "MAX": drain off excess engine oil.
Consult a qualified specialist workshop.
For engine oil level switch on ignition: switch on the vehicle.
Engine oil level System inoperative: the sensor is defective or not connected. Consult a qualified specialist workshop.
Engine oil level currently inoperative: close the bonnet.
Vehicles with cold oil level displays: the oil level is automatically displayed on the instrument cluster after the vehicle has been non-operational for an extended period. If it is not possible to measure the engine oil level, a message to that effect will appear.
The result of the electronic measurement always takes precedence over other measurements.
Notes on washing the vehicle in an automatic 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.
Make sure that the automatic car wash is suitable for the size of the vehicle.
Before washing the vehicle in an automatic car wash, fold in the outside mirrors and remove any additional aerials. Otherwise, the outside mirrors, aerial or the vehicle itself could be damaged.
Make sure any additional aerials are refitted and that the outside mirrors are fully folded out again when you leave the automatic car wash.
To avoid damage to your vehicle, observe the following before using an automatic car wash:
the side windows and the sliding window are completely closed.
the blower for ventilation and heating is switched off.
the windscreen wiper switch is in position
.
If the vehicle is very dirty, wash off excess dirt before cleaning the vehicle in an automatic car wash.
Removing the wax from the windscreen and the wiper rubbers after washing the vehicle, will help avoid smearing and reduce wiper noise.