Mercedes-Benz GL-Class, X164 (USA / CAN)

Power steering fluid capacity & service interval

Mercedes-Benz GL-Class, X164 (USA / CAN) requires power steering fluid with a capacity of 1,2 liters. The data covers 5 configurations.

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

TypeSpecifications
GL 450 4MATIC, 164.871 (2009-2012)
  • Use: Normal
  • Capacity 1,2 liter
GL 550 4MATIC, 164.886 (2009-2012)
  • Use: Normal
  • Capacity 1,2 liter
GL 450 4MATIC, 164.871 (2007-2009)
  • Use: Normal
  • Capacity 1,2 liter
GL 550 4MATIC, 164.886 (2007-2009)
  • Use: Normal
  • Capacity 1,2 liter
GL 450 4MATIC, 164.871 (2006-2007)
  • Use: Normal
  • Capacity 1,2 liter

Additional Notes

  • The Mercedes-Benz GL-Class X164 power steering system holds 1.2 liters across all listed configurations, covering the GL 450 4MATIC and GL 550 4MATIC variants from 2006-2012.
  • A capacity figure of 1.2 liters represents the total fluid volume the power steering reservoir and circuit hold, which is the amount used when performing a full fluid exchange or system service.
  • The GL 450 4MATIC, chassis code 164.871, carries the 1.2-liter power steering capacity across three separate production spans: 2006-2007, 2007-2009, and 2009-2012.
  • The GL 550 4MATIC, chassis code 164.886, shares the same 1.2-liter power steering capacity across both of its listed production spans, 2007-2009 and 2009-2012.
  • All rows across both the GL 450 and GL 550 variants are designated under normal use conditions, meaning the capacity figure of 1.2 liters applies to standard operating environments rather than severe-duty cycles.
  • The identical 1.2-liter capacity between the GL 450 and GL 550 suggests both variants use a common power steering system architecture despite differences in engine displacement between the two models.

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