Notes on regularly inspecting wheels and tyres
WARNING Risk of injury due to damaged tyres
Damaged tyres can cause tyre pressure loss.
Check the tyres regularly for signs of damage and replace any damaged tyres immediately.
WARNING Risk of aquaplaning due to insufficient tyre tread
Insufficient tyre tread will result in reduced tyre grip.
The risk of aquaplaning is increased on wet roads, especially when the speed of the vehicle is not adapted to suit the conditions.
Thus, you should regularly check the tread depth and the condition of the tyre contact surface across the entire width of all tyres.
Minimum tread depth for:
Summer tyres: 3 mm
M+S tyres: 4 mm
For safety reasons, replace the tyres before the legally-prescribed limit for the minimum tread depth is reached.
Carry out the following checks on all wheels regularly, at least once a month or as required, for example, prior to a long journey or driving off-road:
Check the tyre pressure More.
Visually inspect wheels and tyres for damage.
Check the valve caps.
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:
Vehicle settingsSelect a speed or deactivate the function.
Notes on snow chains
WARNING Risk of accident due to incorrect snow chain fitting
If you have fitted snow chains to the front wheels, the snow chains may drag against the vehicle body or chassis components.
This could cause damage to the vehicle or the tyres.
Never fit snow chains on the front wheels.
Only fit snow chains on the rear 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 level control: if snow chains are fitted, only drive at raised vehicle level.
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 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 injury due to moving parts
Components in the engine compartment may continue running or start up suddenly, even if the ignition is switched off.
Make sure of the following before performing tasks in the engine compartment:
Switch the ignition off.
Never reach into the danger zone surrounding moving components, e.g. the rotation area of the fan.
Remove jewellery and watches.
Keep items of clothing and hair away from moving parts.
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 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 change position.
Removing the wiper blades
Fold the wiper arms away from the windscreen.
Set the wiper blade at an angle.
Pull the wiper blade out of the holder on the wiper arm in the direction of the arrow.
Fitting the wiper blades
Push the new wiper blade into the holder on the wiper arm against the direction of the arrow.
Turn the wiper blade parallel to the wiper arm.
Fold the wiper arm onto the windscreen.