Acura MDX, YD8, YD9, YE1 (USA / CAN)

Additional Notes

• The Acura MDX 3.0T AWD, available in both USA and Canadian markets from 2022, carries a 10.1-liter service fill capacity for the cooling system. A service fill represents the amount of coolant added during a routine drain-and-refill procedure, which typically does not evacuate the entire system.
• The MDX 3.5 V6 in Canadian specification lists two distinct coolant capacity values: a 9.3-liter overhaul capacity and a 7.6-liter service fill. An overhaul capacity reflects the total volume of the entire cooling circuit when fully drained, such as during an engine replacement or complete system flush, whereas the service fill figure applies to standard maintenance procedures.
• The MDX 3.5 V6 in USA specification lists only the 7.6-liter service fill, while the Canadian equivalent of the same engine lists both the service fill and the higher 9.3-liter overhaul figure. The service fill value of 7.6 liters is consistent across all 3.5 V6 configurations in both markets and drivetrain variants.
• The 3.0T AWD cooling system capacity of 10.1 liters is notably higher than the 7.6-liter service fill associated with the 3.5 V6 configurations. The turbocharged engine's larger service fill reflects the additional thermal management demands and circuit volume typical of forced-induction powertrains.
• All configurations across both the 3.0T AWD and 3.5 V6 variants use a flexible service interval governed by an on-board maintenance monitoring system. Rather than following a fixed mileage or time schedule, the vehicle's system calculates service needs based on operating conditions.
• The 3.5 V6 AWD variants in both Canadian and USA markets share the same 7.6-liter service fill as the front-wheel-drive 3.5 V6, indicating that the addition of all-wheel drive hardware does not alter the cooling system capacity for that engine.