Mercedes-Benz GLA-Class, X156 (USA / CAN)

Coolant capacity & service interval

Mercedes-Benz GLA-Class, X156 (USA / CAN) coolant capacity ranges from 7,8 to 11,9 liters. Service intervals consist of 120000 miles or 120 months and 124000 miles or 120 months. The data covers 4 configurations.

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

TypeSpecifications
GLA 45 AMG 4MATIC, 156.952 (2015-2020)
  • Use: Normal
  • Capacity 11,9 liter
  • Change 124000 miles/ 120 months
GLA 250, 156.944 (2014-2020)
  • Use: Normal
  • Capacity 7,8 liter
  • Change 124000 miles/ 120 months
GLA 250 4MATIC, 156.946 (2014-2020)
  • Use: Normal
  • Capacity 7,8 liter
  • Change 124000 miles/ 120 months
GLA 45 AMG 4MATIC, 156.952 (2014-2015)
  • Use: Normal
  • Capacity 11,9 liter
  • Change 120000 miles/ 120 months

Additional Notes

  • The GLA 250 (156.944) and GLA 250 4MATIC (156.946) share an identical cooling system capacity of 7.8 liters, applying uniformly across the 2014-2020 model years for both configurations.
  • The Mercedes-Benz GLA 45 AMG 4MATIC (156.952) carries a notably larger cooling system capacity of 11.9 liters, which is roughly 53 percent greater than the 7.8-liter figure associated with the GLA 250 variants, reflecting the higher thermal demands of the AMG engine.
  • Both GLA 250 variants specify a coolant change interval of 124,000 miles or 120 months under normal use conditions, meaning the mileage and time limits run concurrently and whichever is reached first would govern the service event.
  • The GLA 45 AMG 4MATIC (156.952) produced in 2014-2015 carries a change interval of 120,000 miles or 120 months, while the overlapping 2015-2020 production range for the same engine code specifies a slightly extended 124,000-mile interval at the same 120-month time limit.
  • The 120-month time component, equivalent to 10 years, appears consistently across all four configurations regardless of engine type or drivetrain, indicating a uniform calendar-based service boundary for the coolant system on the X156 platform.
  • The 4,000-mile difference between the 120,000-mile interval on the early GLA 45 AMG 4MATIC and the 124,000-mile interval on the later production range represents a minor revision that does not affect the time-based limit of 120 months shared by both.

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