Cadillac XT4, E2XX (EU)

Coolant capacity & service interval

Cadillac XT4, E2XX (EU) coolant capacity ranges from 9,2 to 9,5 liters. The service interval is 240000 km or 60 months. The data covers 6 configurations.

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

TypeSpecifications
XT4 350T (2023- )
  • Use: Normal
  • Capacity 9,5 liter
  • Change 240000 km/ 60 months
XT4 350T AWD (2023- )
  • Use: Normal
  • Capacity 9,5 liter
  • Change 240000 km/ 60 months
XT4 350D (2021- )
  • Use: Normal
  • Capacity 9,2 liter
  • Change 240000 km/ 60 months
XT4 350D AWD (2021- )
  • Use: Normal
  • Capacity 9,2 liter
  • Change 240000 km/ 60 months
XT4 350T (2020-2022)
  • Use: Normal
  • Capacity 9,5 liter
  • Change 240000 km/ 60 months
XT4 350T AWD (2020-2022)
  • Use: Normal
  • Capacity 9,5 liter
  • Change 240000 km/ 60 months

Additional Notes

  • The diesel 350D variants, both front-wheel drive and AWD, share a cooling system capacity of 9.2 liters, while the petrol 350T variants across all configurations carry a slightly larger 9.5-liter capacity.
  • The 0.3-liter difference between the 350D and 350T cooling systems reflects the distinct engine architectures of a diesel and a petrol unit, each requiring a cooling circuit sized to match its thermal load and block volume.
  • All six configurations share an identical service interval of 240,000 km or 60 months under normal use conditions, meaning the change schedule applies regardless of drivetrain layout or engine type.
  • A 60-month interval equates to five years between coolant changes, which is consistent with modern long-life coolant formulations designed to maintain corrosion inhibitor effectiveness over extended periods.
  • The 240,000 km distance threshold is notably high and reflects the extended-life nature of the specified coolant, where mileage accumulation under normal use conditions is unlikely to trigger a change before the time-based limit in typical driving patterns.
  • The Cadillac XT4 350T specifications are split across two year bands, 2020-2022 and 2023 onward, yet both bands carry identical capacity and interval figures of 9.5 liters and 240,000 km/60 months, indicating no change to cooling system specifications between those periods.
  • The AWD variants of both the 350D and 350T share the same cooling system capacities as their front-wheel-drive counterparts, confirming that the addition of all-wheel-drive hardware does not alter the engine cooling circuit volume in these configurations.

Other Systems