Mercedes-Benz GL-Class, X164 (USA / CAN)
Differential fluid capacity & service interval
Mercedes-Benz GL-Class, X164 (USA / CAN) differential fluid capacity ranges from 1,1 to 1,6 liters. The data covers 15 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- Across all configurations of the Mercedes-Benz GL-Class X164 covered in the specifications, the front differential capacity is uniformly listed at 1.1 liters under normal use conditions, applying equally to the GL 450 4MATIC (164.871) and the GL 550 4MATIC (164.886).
- The standard rear differential without a locking mechanism also carries a 1.1-liter capacity across all model year ranges and both engine variants, matching the front differential fill volume exactly.
- When the rear differential lock option is present, the capacity rises to 1.6 liters, a difference of 0.5 liters compared to the non-locking rear unit. The additional volume accommodates the mechanical components of the locking mechanism housed within the differential casing.
- The 1.6-liter rear differential lock capacity appears consistently across all three production sub-ranges of the GL 450 4MATIC (164.871): 2006-2007, 2007-2009, and 2009-2012, indicating no revision to that specification over the model's production span within the X164 generation.
- The GL 550 4MATIC (164.886) shares identical differential capacities with the GL 450 4MATIC across both the 2007-2009 and 2009-2012 sub-ranges, with 1.1 liters for the front, 1.1 liters for the standard rear, and 1.6 liters for the rear with differential lock.
- All differential fluid specifications in the data are designated for normal use conditions, meaning no separate severe-use interval or capacity figure is listed for any of the front or rear differential positions across either variant.