Mazda CX-7, ER (EU)

Transfer case fluid capacity & service interval

The Mazda CX-7, ER (EU) uses transfer case fluid with a capacity of 1.2 liter. The data covers 6 configurations.

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

TypeSpecifications
CX-7 2.2 CiTD (120 kW) (2009-2012)
  • Use: Normal
  • Capacity 1,2 liter
CX-7 2.2 CiTD (127 kW) (2009-2012)
  • Use: Normal
  • Capacity 1,2 liter
CX-7 2.3 DISI Turbo (2009-2012)
  • Use: Normal
  • Capacity 1,2 liter
CX-7 2.5 (2009-2012)
  • Use: Normal
  • Capacity 1,2 liter
CX-7 2.3 DISI Turbo (2007-2008)
  • Use: Normal
  • Capacity 1,2 liter
CX-7 2.3 DISI Turbo automatic (2007-2012)
  • Use: Normal
  • Capacity 1,2 liter

Additional Notes

  • Across all listed engine variants of the Mazda CX-7 ER (EU), the transfer case fluid capacity is 1.2 liters. A consistent capacity across different engine configurations typically reflects a shared transfer case unit rather than engine-specific hardware.
  • The 1.2-liter figure represents a service fill capacity, meaning the amount of fluid required when draining and refilling the transfer case during routine maintenance, as opposed to a dry fill or overhaul capacity, which would account for fluid retained in internal passages and components.
  • All six configurations carry a normal use condition designation. In transfer case servicing, a normal use condition generally applies to standard on-road driving without sustained towing, off-road operation, or other high-stress driving patterns that would accelerate fluid degradation.
  • The diesel variants, the 2.2 CiTD at 120 kW and the 2.2 CiTD at 127 kW, share the same 1.2-liter transfer case capacity for the 2009-2012 period despite differing power outputs. The two power ratings indicate separate engine tunes or calibrations rather than mechanically distinct transfer case assemblies.
  • The 2.3 DISI Turbo appears across two separate year groupings, 2007-2008 and 2009-2012, both with a 1.2-liter transfer case capacity under normal use. The split into distinct year ranges suggests a model revision occurred between the two periods, though the transfer case fluid specification remained unchanged.
  • A dedicated row covers the 2.3 DISI Turbo automatic across the full 2007-2012 span, separate from the general 2.3 DISI Turbo entries. The distinction between automatic and non-automatic variants in the specifications indicates the transmission type was treated as a relevant variable for service classification, even though the transfer case capacity remains 1.2 liters in both cases.
  • The 2.5-liter naturally aspirated variant, listed for 2009-2012, carries the same 1.2-liter transfer case specification as the turbocharged and diesel variants. The 2.5 engine represents a different displacement and induction type from the other listed configurations, yet the transfer case hardware and fluid volume remain consistent across the range.

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