Mercedes-Benz GLC-Class / Coupé, X254 / C254 (USA / CAN)

Transfer case fluid capacity & service interval

Mercedes-Benz GLC-Class / Coupé, X254 / C254 (USA / CAN) requires transfer case fluid with a capacity of 0,7 liter. The service interval is 77500 miles. The data covers 3 configurations.

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

TypeSpecifications
GLC 350 e 4MATIC, 254.156/356/656 (2023- )
  • Use: Normal
  • Capacity 0,7 liter
  • Change 77500 miles
GLC 43 AMG 4MATIC, 254.187/387/687 (2023- )
  • Use: Normal
  • Capacity 0,7 liter
  • Change 77500 miles
GLC 300 4MATIC, 254.147/347/647 (2022- )
  • Use: Normal
  • Capacity 0,7 liter
  • Change 77500 miles

Additional Notes

  • The Mercedes-Benz GLC-Class / Coupé X254 / C254 transfer case holds 0.7 liter of fluid across all three listed configurations: the GLC 300 4MATIC, GLC 350 e 4MATIC, and GLC 43 AMG 4MATIC.
  • A 0.7 liter capacity is a relatively small fill volume, consistent with a compact transfer case unit designed for a passenger vehicle all-wheel-drive system rather than a heavy-duty drivetrain.
  • All three configurations share an identical service interval of 77,500 miles under normal use conditions, meaning no variation in change frequency exists across the standard, plug-in hybrid, and AMG variants in the specifications.
  • The 77,500-mile interval applies specifically to normal use conditions, which in fluid service terminology generally refers to on-road driving without sustained extreme loads, towing, or off-road operation.
  • The GLC 300 4MATIC carries chassis designations 254.147, 254.347, and 254.647, reflecting sedan and coupé body variants within the X254 / C254 platform that nonetheless share the same transfer case fluid specification.
  • The GLC 350 e 4MATIC, designated 254.156, 254.356, and 254.656, is a plug-in hybrid configuration introduced in 2023, yet the transfer case fluid capacity and change interval are identical to the non-hybrid GLC 300 4MATIC.
  • The GLC 43 AMG 4MATIC, carrying designations 254.187, 254.387, and 254.687, is the performance-oriented variant in the lineup, and despite its higher output application, the transfer case fluid capacity remains at 0.7 liter with the same 77,500-mile service interval under normal conditions.

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