Final Test for market launch of EQS

Which statement(s) about the components of the EQS is/are correct?

• The DC/DC converter supplies the 12 V on-board electrical system with voltage.

• The vehicle interior is heated by the high-voltage PTC heater integrated in the air conditioner housing.

• The charging plug detection function of the on-board charger prevents driving off with the charging cable plugged in.

• As with the other model series, the interlock signal is monitored in the BMS control unit.

• The DC/DC converter control unit forms the interface between low-voltage and high-voltage on-board electrical system.

Which statement(s) about the on-board electrical system (low-voltage and high-voltage) of the EQS is/are correct?

• The power supply in the EQS is provided via the high-voltage on-board electrical system with high-voltage battery and via the 12 V on-board electrical system with 12 V on-board electrical system battery.

• A 12 V lithium-ion battery is used in the EQS.

• The EQS is the first vehicle to use a 48 V on-board electrical system in addition to the high-voltage on-board electrical system.

• The 12 V on-board electrical system is supplied with energy from the high-voltage on-board electrical system with the aid of the DC/DC converter.

• All control units used in the EQS are supplied via the 12 V on-board electrical system battery.

Which statement(s) about the high-voltage interlock circuit of the EQS is/are correct?

• The EQS again uses the familiar central interlock system.

• The EQS is the first model in the EVA 2 architecture to use a new decentralized interlock system.

• The advantage of the decentralized interlock system is that each component is monitored independently, which simplifies diagnosis in the event of damage.

• All high-voltage components report the interlock status to the central powertrain control unit via a communication bus.

• Due to the new architecture, an interlock function is no longer necessary.

Which statement(s) about charging in the EQS (V297 model series) is/are correct?

• There is an AC charger with 22 kW charging capacity as special equipment.

• The basic charger in ECE markets is an AC charger with 11 kW charging capacity.

• The maximum charging capacity for DC charging is 120 kW.

• There is an AC charger with 60 kW charging capacity as special equipment.

• The maximum charging capacity for DC charging is 180 or 200 kW depending on the type of battery installed.

Which statement(s) about thermal management in EQS is/are correct?

• The thermal management system consists of a low-temperature and a high-temperature cooling circuit.

• The thermal management system consists of two low-temperature cooling circuits.

• The NT1 cooling circuit contains the DC/DC converter, the electric machines with power electronics and the chargers.

• The NT2 cooling circuit contains the high-voltage battery and a high-voltage PTC heater (5.2 kW).

• Coupled with the NT1 cooling circuit is the passenger compartment heating circuit with integrated 8 kW high-voltage PTC heater.

Which statement(s) about the high-voltage battery in the EQS (V297 model series) is/are correct?

• The high-voltage battery is located in the trunk.

• The high-voltage battery is located in the vehicle floor.

• The instrument cluster indicates whether the high-voltage battery is safe for transport.

• Two different battery sizes of the high-voltage battery are available for the EQS.

• The lithium-ion battery contains the cells, the battery management system and the high-voltage contactors.

Which statement(s) about the recuperation of the EQS is/are correct?

• During recuperation, kinetic energy is converted into electrical energy.

• The strength of the recuperation process can be set using paddle shifters on the steering wheel.

• The recuperation performance may be significantly reduced after and during a ESP regulation.

• Recuperation level 'D+' corresponds to no recuperation. (Sailing)

• The recuperation performance does not depend on the state of charge of the high-voltage battery.

Which statement(s) about networking in the EQS is/are correct?

• There are no innovations in networking in the EQS.

• Due to the use of faster CAN networks (CAN FD), no potential distributors are provided in these networks.

• In the EQS, STAR 3 introduces the latest generation of EE architecture for Mercedes-Benz.

• In the EQS, only the already known CAN and LIN bus systems are used.

• The EQS also uses the bus systems of the suspension FlexRay™ and MOST, among others.

Which statement(s) about the maintenance strategy of the EQS is/are correct?

• The maintenance interval of 30,000 km (20,000 mi) or 24 months as well as possible country-specific deviating kilometer intervals remain unchanged.

• There is no alternating Service A and Service B. The maintenance scope is always the same.

• Service A and Service B continue to apply alternately, as well as a 'PLUS package' freely selectable by the customer.

• The activated charcoal particle filter is replaced at 60,000 km/24 months.

• The oil in the electric drive units must be replaced at every maintenance.

What high-voltage safety measure(s) has/have been implemented on the EQS?

• CO2 extinguishing system as standard for the first time

• Orange high-voltage lines

• Galvanic separation between high-voltage and low-voltage on-board electrical systems

• Decentralized high-voltage interlock circuit

• Contact protection on all high-voltage plug connections