Notes on regularly inspecting wheels and tyres
WARNING Risk of accident from damaged tyres
Damaged tyres can cause tyre pressure loss.
As a result, you could lose control of your vehicle.
Check the tyres regularly for signs of damage and replace any damaged tyres immediately.
Carry out the following checks on all wheels regularly, at least once a month or as required, e.g. prior to a long journey or driving off-road:
Check the tyre pressure More.
Visually inspect tyres and wheels for damage.
Check the valve caps.
The valves must be protected against moisture and dirt by the valve caps approved especially for your vehicle by Mercedes-Benz.
Visual check of the tyre tread depth and the tyre contact surface across the entire width.
The minimum tread depth for summer tyres is 3 mm and for winter tyres 4 mm.
Setting the speed limitation for winter tyres
Multimedia system:
Select a speed or deactivate the function.
Notes on snow chains
WARNING Risk of accident due to incorrect snow chain fitting
If you fit snow chains to the rear wheels, the snow chains may grind against the vehicle body or chassis components.
This could cause damage to the vehicle or the tyres.
Never fit snow chains to the rear wheels.
Always fit snow chains to the front wheels in pairs.
NOTEDamage to the wheel trim from fitted snow chains
If snow chains are fitted to steel wheels, the wheel trims can be damaged.
Remove the wheel trims of steel wheels before fitting snow chains.
Observe the following notes when using snow chains:
Snow chains are only permissible for certain wheel/tyre combinations. You can obtain information about this from a Mercedes-Benz Service Centre.
For safety reasons, only use snow chains that have been specifically approved for your vehicle by Mercedes-Benz, or snow chains with the same quality standard.
If snow chains are fitted, the maximum permissible speed is 50 km/h.
Vehicles with Active Parking Assist: do not use Active Parking Assist when snow chains are fitted.
You can permanently limit the maximum vehicle speed for driving with winter tyres More.
You can deactivate ESP® to pull away More. This allows the wheels to spin, achieving an increased driving force.
Notes on windscreen washer fluid
Observe the notes on operating fluids More.
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.
NOTE Damage to the exterior lighting due to unsuitable windscreen washer fluid
Unsuitable windscreen washer fluids may damage the plastic surface of the exterior lighting.
Only use windscreen washer fluids which are also suitable for use on plastic surfaces, e.g. MB SummerFit or MB WinterFit.
NOTEBlocked spray nozzles caused by mixing windscreen washer fluids
Do not mix MB SummerFit and MB WinterFit with other windscreen washer fluids.
Do not use distilled or de-ionised water as the fill level sensor may be triggered erroneously.
Recommended windscreen washer fluid:
Above freezing point: e.g. MB SummerFit
Below freezing point: e.g. MB WinterFit
For the correct mixing ratio, refer to the information on the antifreeze container.
Mix the washer fluid with the windscreen washer fluid all year round.
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.
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. 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.
Switching the stationary heater/stationary ventilation on/off via the control panel
DANGER Risk of fatal injury due to poisonous exhaust gases
If the tailpipe is blocked or sufficient ventilation is not possible, poisonous exhaust gases such as carbon monoxide may enter the vehicle. This is the case in enclosed spaces or if the vehicle gets stuck in snow, for example.
Always switch the stationary heater off in enclosed spaces without an air extraction systems, e.g. in garages.
Keep the tailpipe and the area around the vehicle free from snow when the engine or the stationary heater are running.
Open a window on the windward side of the vehicle to ensure an adequate supply of fresh air.
WARNING Risk of fire due to hot stationary heater components
When the stationary heater is switched on, parts of the vehicle can become very hot, e.g. the stationary heater exhaust system.
Flammable materials such as leaves, grass or twigs may ignite if they come into contact with:
hot parts of the stationary heater exhaust system
the exhaust gas itself
When the stationary heater is switched on, make sure that:
hot vehicle parts do not come into contact with flammable materials.
the exhaust gas can flow out of the stationary heater tailpipe unhindered.
the exhaust gas does not come into contact with flammable materials.
NOTE Battery discharge caused by stationary heater or stationary ventilation operation
Operating the stationary heater or stationary ventilation drains the battery.
After heating or ventilating the vehicle twice, drive for a longer period of time.
Requirements:
The fuel tank has been filled to at least
.
Set the desired temperature using the 
button.
button. Press button .
. The red or blue indicator lamp on button lights up or goes out.
The colours of the indicator lamp have the following meaning:
Blue: stationary ventilation is switched on.
Red: stationary heater is switched on.
Yellow: departure time is preselected.
The stationary heater/stationary ventilation switches off automatically after 50 minutes.
Operation using the app: the stationary heater/ventilation can also be operated via the Mercedes me connect app. Further information can be found in the separate Owner's Manual under Mercedes me connect interactive Owner's Manual.