Mercedes-Benz EQS-Class SUV, X296 (USA / CAN)

Coolant capacity & service interval

Mercedes-Benz EQS-Class SUV, X296 (USA / CAN) requires coolant with a capacity range of 12 to 15 liters. The service interval is 130500 miles or 144 months. The data covers 8 configurations.

The configuration chart below lists fill volumes and service intervals for each engine and trim variant.

TypeSpecifications
EQS 680 4MATIC Maybach, 297.655 (2023- )
  • Use: Normal
  • Capacity 12 liter
  • Change 130500 miles/ 144 months
  • EQS 680 4MATIC Maybach, 297.655 (2023- )
  • Secondary
  • Use: Normal
  • Capacity 15 liter
  • Change 130500 miles/ 144 months
EQS 450 4MATIC, 297.624 (2022- )
  • Use: Normal
  • Capacity 12 liter
  • Change 130500 miles/ 144 months
  • EQS 450 4MATIC, 297.624 (2022- )
  • Secondary
  • Use: Normal
  • Capacity 15 liter
  • Change 130500 miles/ 144 months
EQS 450+, 297.623 (2022- )
  • Use: Normal
  • Capacity 12 liter
  • Change 130500 miles/ 144 months
  • EQS 450+, 297.623 (2022- )
  • Secondary
  • Use: Normal
  • Capacity 15 liter
  • Change 130500 miles/ 144 months
EQS 580 4MATIC, 297.644 (2022- )
  • Use: Normal
  • Capacity 12 liter
  • Change 130500 miles/ 144 months
  • EQS 580 4MATIC, 297.644 (2022- )
  • Secondary
  • Use: Normal
  • Capacity 15 liter
  • Change 130500 miles/ 144 months

Additional Notes

  • The Mercedes-Benz EQS-Class SUV X296 carries two separate cooling circuits across all variants: a primary cooling system and a secondary cooling system, each with its own distinct capacity specification.
  • The primary cooling system holds 12 liters across the EQS 450+, EQS 450 4MATIC, EQS 580 4MATIC, and EQS 680 4MATIC Maybach variants, indicating a consistent main circuit volume regardless of powertrain configuration.
  • The secondary cooling system holds 15 liters across all four variants, making it the larger of the two circuits by 3 liters and suggesting a more substantial thermal management role, likely associated with battery or power electronics cooling in an electric drivetrain architecture.
  • A combined coolant volume of 27 liters per vehicle, when both circuits are serviced together, represents a notably high total fill compared to conventional internal combustion vehicles, reflecting the expanded thermal demands of high-voltage electric drivetrains.
  • The coolant change interval for all variants and both circuits is rated at 130,500 miles or 144 months under normal use conditions, with 144 months equating to 12 years, placing this among the longest factory-specified coolant service intervals in the industry.
  • The EQS 680 4MATIC Maybach, identified by internal code 297.655, carries the same 12-liter primary and 15-liter secondary coolant capacities as the other variants, with a starting model year of 2023 rather than 2022.
  • All coolant service intervals across the EQS 450+, EQS 450 4MATIC, EQS 580 4MATIC, and EQS 680 4MATIC Maybach are specified under normal use conditions only, with no separate severe-use interval listed for any variant or circuit.

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