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
NOTE Damage to components of the vehicle body or chassis due to fitted snow chains
If you fit snow chains to the front wheels of 4MATIC vehicles, you may damage components of the vehicle body or chassis.
Only fit snow chains to the rear wheels of 4MATIC vehicles.
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 from windscreen washer concentrate
Windscreen washer concentrate is highly flammable. If it comes into contact with hot components, it may ignite.
Make sure that windscreen washer concentrate is not spilled near 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 Risk of burns from hot component parts in the engine compartment
Certain components in the engine compartment can be very hot, e. g. drive system and radiator.
Allow the drive system to cool down and only touch the component parts described below.
WARNING Risk of injury due to overheated drive system
If you open the bonnet when the drive system 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 overheated drive system to cool down.
In the event of a fire in the engine compartment, keep the bonnet closed and call the fire service.
WARNING Risk of fire and injury from windscreen washer concentrate
Windscreen washer concentrate is highly flammable.
Avoid fire, naked flames, smoking and the creation of sparks when using windscreen washer concentrate.
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 replacement position
Switch the ignition on and switch off again immediately.
Within around 15 seconds, press 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 the 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.