Mercedes-Benz S-CLASS SEDAN 2023 Refueling User Manual
Refueling
Refueling the vehicle
WARNING
Risk of fire or explosion from fuel
Fuels are highly flammable.
- Fire, open flames, smoking and creating sparks must be avoided.
- Before refueling, switch off the vehicle and, if installed, the stationary heater, and leave them switched off during refueling.
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 vapor.
- Keep children away from fuel.
- Keep doors and windows closed during the refueling 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 vapor.
- Before you open the fuel filler cap or take hold of the pump nozzle, touch the metallic vehicle body.
- To avoid creating another electrostatic
NOTE
Damage caused by the wrong fuel Vehicles with a gasoline engine:
Even small amounts of the wrong fuel could result in damage to the fuel system, the engine and the emission control system.
- Only refuel with the low-sulfur spark-ignition engine fuel.
This fuel may contain up to 10% ethanol. Your vehicle is suitable for use with E10 fuel.
Never refuel with one of the following fuels:
- Diesel
- Gasoline with more than 10% ethanol by volume, e.g. E15, E85, E100
- Gasoline with more than 3% methanol by volume, e.g. M15, M30, M85, M100
- Gasoline with additives containing metal
If you have accidentally refueled with the wrong fuel:
- Do not switch on the vehicle.
- Consult a qualified specialist workshop.
NOTE
Do not use diesel to refuel vehicles with a gasoline engine
If you have accidentally refueled with the wrong fuel:
- Do not switch on the vehicle. Otherwise fuel can enter the engine.
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 due to overfilling the fuel tank
Only fill the fuel tank until the pump nozzle switches off.
If too much fuel has been added due, for example, to a faulty filling pump:
- Do not switch on the vehicle.
- Consult a qualified specialist workshop.
NOTE
Fuel may spray out when you remove the fuel pump nozzle
- Only fill the fuel tank until the pump nozzle switches off.
Requirements
- The vehicle is unlocked.
- Plug-in hybrid with gasoline engine: The fuel tank was vented before refueling(/ page 229). This function is country-dependent.
Observe the notes on service fluids and fuel.
Refuel only with fuel that has at least the octane rating specified in the information label in the fuel filler flap. Otherwise, engine output may be reduced and fuel consumption increased.
- Fuel filler flap
- Bracket for fuel filler cap
- Tire pressure table
- QR code for rescue card
- Fuel type
Plug-in hybrid with a gasoline engine: The fuel filler flap opens automatically after the fuel tank has been vented (/ page 229).
- Press on the rear part of fuel filler flap 1.
- Turn the fuel filler cap counterclockwise and remove it.
- Insert fuel filler cap from above into bracket2.
- Completely insert the pump nozzle into the tank filler neck, hook in place and refuel.
- Fill the fuel tank only until the pump nozzle switches off.
- Replace the cap on the filler neck and turn clockwise until it engages audibly.
- Close fuel filler flap 1.
Depressurizing the fuel tank (plug-in hybrid with gasoline engine)
- Pull switch 1 once briefly.
Indicator lamp 2 will flash and the Please Wait Depressurizing Fuel Tank message will appear on the driver’s display.
When the fuel tank is depressurized, indicator lamp 2 will light up continuously. The Fuel Tank Is Depressurized Ready for Refueling message will appear on the driver’s display and the fuel filler flap will open automatically.
Depressurizing the fuel tank may take several minutes.
The fuel tank can only be depressurized if the conditions described above are fulfilled. Otherwise, drive the vehicle at least 1/3 mile (0.5 km) and repeat the process.
In the following situations, there is a malfunction:
- Indicator lamp 2 flashes initially and then goes out.
- The yellow; engine diagnostics warning lamp lights up.
NOTE
Damage to the fuel filler flap when opening it
If an attempt is made to open a fuel filler flap that is not unlocked, the fuel filler flap or the opening mechanism may be damaged. If an attempt is made to open a fuel filler flap that is not unlocked, the fuel filler flap or the opening mechanism may be damaged.
- Only refuel when the fuel filler flap has opened automatically.
Charging the high-voltage battery (plug-in hybrid)
Notes on charging the high-voltage battery
NOTE
High-voltage battery damage due to leaving the vehicle idle for lengthy periods of time Lithium-ion batteries experience a natural self-discharge.
Exhaustive discharging can therefore occur if the vehicle is idle for several months. This can damage the high-voltage battery.
- To avoid damage, please observe the following recommendations when handling the high-voltage battery.
NOTE
Accelerated aging of the high-voltage battery due to not observing the following recommendations
As a result of its basic characteristics, the storage capacity of and the amount of energy available from the high-voltage battery decreases over the course of its life. Due to this, both the maximum electrical range that can be achieved by the vehicle and its maximum electrical output can be impaired.
The following factors could accelerate the aging of the high-voltage battery:
- A high condition of charge, especially if the vehicle is idle for a lengthy period of time
- Frequent rapid charging with direct current (mode 4)
- Leaving the vehicle idle for lengthy periods at high ambient temperatures
- To avoid accelerated aging, please observe the following recommendations when handling the high-voltage battery.
Recommendations for handling the high-voltage battery:
- Charge the high-voltage battery with direct current (mode 4) only if necessary.
- If leaving the vehicle idle for lengthy periods, park up the vehicle with a high-voltage battery state of charge between 25% and 30%. Do not keep the high-voltage battery continuously connected to power supply equipment.
- If leaving the vehicle idle for lengthy periods of time avoid high ambient temperatures if possible.
- Check the high-voltage battery’s state of charge every six weeks (/ page 244).
- Charge the high-voltage battery if the state of charge is below 15%.
- Do not disconnect the 12 V battery even if the vehicle is left idle for a lengthy period. Otherwise, the condition of the vehicle’s high-voltage battery cannot be monitored.
- If the high-voltage battery is used only with low states of charge, fully charge the high-voltage battery every six months.
Depending on the equipment, your vehicle will be equipped with one of the following vehicle sockets:
- Type 1 for AC charging (mode 2/3)
- Type Combo 1 for AC charging (mode 2/3) and DC charging (mode 4)
Example: Combo 1 vehicle socket
- Socket for AC charging
- Socket extension for DC charging
When you use a CCS (Combined Charging System) charging cable to charge with direct current, both areas of the vehicle socket will be covered by the charging cable connector.
Charging options for the high-voltage battery (mode 2, 3 or 4):
- Charging through recuperation while the vehicle is in motion
- AC charging when stationary:
- Charging options for the high-voltage battery (mode 2, 3 or 4):
- Charging through recuperation while the vehicle is in motion
- R AC charging when stationary:
- R DC charging when stationary:
- At a rapid charging station (mode 4)
- Depending on the country-specific vehicle equipment and your vehicle’s charging cable, single-phase AC charging is also possible.
- Observe the different grid requirements of your current location when charging. Use only charging cables that conform to the grid requirements. Consult a qualified electrician or your local grid operator if you have any questions.
It is recommended that you charge the high-voltage battery at a wall box or charging station due to the improved charging performance and better charging efficiency offered.
System limits
The power output of the high-voltage battery may be impaired by the following:
- High or low outside temperatures
- Electrical auxiliary consumers in the vehicle being switched on, e.g. the air conditioning system is operated
- Extended periods without charging
The charging time of the high-voltage battery may be increased by the following:
- High or low outside temperatures
- Extended periods without charging
- The maximum available charge current of the charging facility
Mercedes-Benz 2023 Top Accessories
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Reference Links
View Full User Guide: Mercedes-Benz S-CLASS SEDAN 2023 User Manual
Download Manuals: https://www.mbusa.com/en/owners/manuals
