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  • Vito
  • 03/2023
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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.

Check the wheels and tyres of your vehicle for damage regularly, i.e. at least every two weeks, as well as after driving off-road or on rough roads. Damaged wheels can lead to a loss of tyre pressure.

Look out for the following types of damage, for example:

  • cuts in the tyres

  • punctures in the tyres

  • tears in the tyres

  • bulges on tyres

  • deformation or severe corrosion on wheels

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 tread 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.
Conduct the following checks regularly on all wheels, at least once a month or as required, e.g. before a long journey or when driving off-road:

  • check the tyre pressure More

  • check the valve caps

    Valves must be protected from moisture and dirt with valve caps specifically approved by Mercedes-Benz for your vehicle.

  • visually inspect the tread depth and the tyre tread across the whole tyre width

    The minimum tread depth for summer tyres is 3 mm and on winter tyres 4 mm.

Notes on snow chains

Vehicles with rear wheel drive or all-wheel drive

WARNING Risk of accident due to incorrectly fitted snow chains

If you have fitted snow chains to the front wheels, they may drag against the vehicle body or chassis components.

Never fit snow chains to the front wheels.
Only fit snow chains on the rear wheels in pairs.
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.

Vehicles with front wheel drive

WARNING Risk of accident due to incorrectly fitted snow chains

If you have fitted snow chains to the rear wheels, they may drag against the vehicle body or chassis components.

Never fit snow chains on the rear wheels.
Only fit snow chains on the front wheels in pairs.
WARNING Risk of accident due to snow chains breaking

If you drive too fast with snow chains, they can break, injure other persons, and damage the vehicle.

Observe the maximum permissible speed for operation with snow chains.
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 on this at a qualified specialist workshop.

  • 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.

  • The snow chains must be retightened after driving approximately 1 km. This is the only way to ensure the snow chains are optimally fitted with clearance to adjacent components.

  • Vehicles with rear wheel drive: only fit snow chains in pairs and only to the rear wheels. Observe the manufacturer's installation instructions.

  • Vehicles with front wheel drive: only fit snow chains in pairs and only to the front wheels. Observe the manufacturer's installation instructions.

  • Use snow chains only when the road surface is completely snow-covered. Remove the snow chains as soon as possible when you come to a road that is not snow-covered.

  • Local regulations may restrict the use of snow chains. Observe the applicable regulations before fitting snow chains.

  • If snow chains are fitted, the maximum permissible speed is 50 km/h.

You can deactivate ESP® to pull away MoreDeactivating or.... This allows the wheels to spin, achieving an increased propulsive force.

Related topics
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. Otherwise, the fill level sensor may give a false reading.

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 anti-freeze container.

Mix the washer fluid with windscreen washer fluid all year round.

Filling up the windscreen washer system
WARNING Risk of burns when opening the bonnet
If you open the bonnet when the engine has overheated or when there is a fire in the engine compartment, the following situations may occur:

  • You could come into contact with hot gases.

  • You could come into contact with other hot, 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 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 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.
WARNING Risk of burns from hot component parts in the engine compartment

Certain component parts in the engine compartment can be very hot, e.g. the engine, the cooler and parts of the exhaust system.

Allow the engine to cool down and only touch component parts described in the following.
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 that are also suitable for use on plastic surfaces, e.g. MB SummerFit or MB WinterFit.
Topping up the washer fluid
Washer fluid reservoir (example)
Observe the notes on windscreen washer fluid More.
Pull cap upwards by the tab.
Top up the washer fluid.
Push cap onto the filler opening until it audibly engages.
Related topics
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.
NOTE Damage to the windscreen or rear window when you replace the wiper blade

If a wiper arm is folded back onto the windscreen or rear window and no wiper blade is fitted, the window may be damaged by the force of the impact.

Never fold a wiper arm back onto the windscreen or rear window without a wiper blade fitted. Hold the wiper arm firmly when a wiper blade is being replaced.
NOTE Damage to bonnet or windscreen wipers when opening the bonnet

If the windscreen wipers have been folded back from the windscreen when the bonnet is opened, the windscreen wipers or the bonnet may be damaged.

Ensure that the windscreen wipers have not been folded back from the windscreen.
Removing the wiper blades
Fold the wiper arms away from the windscreen.
Hold the wiper arm with one hand. With the other hand, turn the wiper blade in the direction of arrow away from the wiper arm as far as it will go.
Slide catch in the direction of arrow until it engages in the removal position.
Remove wiper blade from the wiper arm in the direction of arrow .
Fitting the wiper blades
Insert the new wiper blade into the wiper arm in the direction of arrow .
Slide catch in the direction of arrow until it engages in the locking position.
Make sure that the wiper blade is seated correctly.
Fold the wiper arms back onto the windscreen.
Maintenance display
Remove protective film from the maintenance displays on the tips 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 time until the colour changes varies depending on the usage conditions.

Related topic
Adjusting the hot-water auxiliary heater with the on-board computer
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 system, e.g. in garages.
Keep the tailpipe and the area around the vehicle free from snow when the engine or the stationary heater is running.
Open a window on the side of the vehicle facing away from the wind to ensure an adequate supply of fresh air.
WARNING Risk of fire due to hot stationary heater components and exhaust gases

Flammable materials such as leaves, grass or twigs may ignite.

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 exhaust pipe 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 is filled above the reserve level.

  • The vehicle is switched on.

Setting the departure time

Before setting your departure time, make sure that the clock on the on-board computer is set to the correct time. Otherwise, the auxiliary heating will switch on at the wrong time and possibly in an unsuitable location. When setting your departure time, you should also observe the notes on auxiliary heating.

Use the buttons on the steering wheel.

Use the or button to select the Settings menu.
Use the or button to select Heating.
Press the button to confirm.

The display will show the current settings for the auxiliary heating.

If no departure time has been enabled, the display will show No preselection.

If a departure time has been activated, the display will show the corresponding letter, e.g. Departure time A, and the set time of the activated departure time.

To change the settings:
press the button again.

The display will show the current settings in the Departure time list.

To enable a departure time:
use the or button to select one of the three departure times and confirm your selection with the button.

The display will show the code letter and the set departure time enabled.

To deactivate the departure time:
use the or button to select No preselection and confirm your selection with the button.
To set the departure time:
use the or button to select Change A, for example, and confirm your selection with the button.
Use the or button to switch between hours and minutes.
Use the or button to set the hours or minutes.
Press the button to confirm.

The changed departure time will then be enabled. The display will show the relevant code letter along with the changed time.

Related topics