Acura TLX, UB5, UB6, UB7 (USA / CAN)

Coolant capacity & service interval

Acura TLX, UB5, UB6, UB7 (USA / CAN) models require coolant with a capacity range of 5 to 10,8 liters. Service intervals follow a flexible on board maintenance system. The data covers 6 configurations.

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

TypeSpecifications
TLX 2.0 (CAN) (2020- )
  • Use: Flexible (on board maintenance system)
  • Capacity 8,1 liter (Overhaul capacity)
  • Capacity 5 liter (Service fill)
TLX 2.0 (USA) (2020- )
  • Use: Flexible (on board maintenance system)
  • Capacity 8,1 liter (Overhaul capacity)
  • Capacity 5 liter (Service fill)
TLX 2.0 AWD (CAN) (2020- )
  • Use: Flexible (on board maintenance system)
  • Capacity 8,1 liter (Overhaul capacity)
  • Capacity 5 liter (Service fill)
TLX 2.0 AWD (USA) (2020- )
  • Use: Flexible (on board maintenance system)
  • Capacity 8,1 liter (Overhaul capacity)
  • Capacity 5 liter (Service fill)
TLX 3.0 AWD (CAN) (2020- )
  • Use: Flexible (on board maintenance system)
  • Capacity 10,8 liter (Overhaul capacity)
  • Capacity 8,3 liter (Service fill)
TLX 3.0 AWD (USA) (2020- )
  • Use: Flexible (on board maintenance system)
  • Capacity 10,8 liter (Overhaul capacity)
  • Capacity 8,3 liter (Service fill)

Additional Notes

  • The Acura TLX 2.0 cooling system carries an overhaul capacity of 8.1 liters, which represents the total volume of the entire cooling circuit when fully drained and refilled, including the engine block, heater core, and all associated passages.
  • The 2.0-liter variants list a service fill capacity of 5.0 liters, a figure notably lower than the overhaul capacity. The difference reflects coolant that remains trapped in the block and heater core during a standard drain, meaning a routine service does not fully evacuate the system.
  • The 3.0 AWD configuration carries a significantly larger overhaul capacity of 10.8 liters compared to the 8.1 liters specified for the 2.0 variants, consistent with the greater displacement and additional thermal mass of a six-cylinder engine.
  • The service fill capacity for the TLX 3.0 AWD is 8.3 liters, which is 2.5 liters less than the overhaul figure of 10.8 liters, indicating a proportionally larger volume of retained coolant relative to the 2.0-liter configurations.
  • All six configurations share a flexible service interval governed by the on-board maintenance system. Rather than a fixed mileage or time schedule, the vehicle's monitoring system determines when a coolant service is due based on operating conditions.
  • The CAN and USA market variants of both the 2.0 and 3.0 AWD configurations carry identical capacity figures within their respective engine families, with no regional difference in cooling system volume across the specifications listed.

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