Mazda CX-7, ER (EU)

Differential fluid capacity & service interval

Mazda CX-7, ER (EU) differential fluid capacity is 1 liter. Service intervals include 40000 km and 45000 km. The data covers 11 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)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-7 2.2 CiTD (120 kW) (2009-2012)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 40000 km
  • CX-7 2.2 CiTD (127 kW) (2009-2012)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-7 2.2 CiTD (127 kW) (2009-2012)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 40000 km
  • CX-7 2.3 DISI Turbo (2009-2012)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-7 2.3 DISI Turbo (2009-2012)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 45000 km
  • CX-7 2.5 (2009-2012)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-7 2.3 DISI Turbo (2007-2008)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-7 2.3 DISI Turbo (2007-2008)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 45000 km
  • CX-7 2.3 DISI Turbo automatic (2007-2012)
  • Rear
  • Use: Normal
  • Capacity 1 liter
  • CX-7 2.3 DISI Turbo automatic (2007-2012)
  • Rear
  • Use: Severe
  • Capacity 1 liter
  • Change 45000 km

Additional Notes

  • The rear differential fluid capacity across all Mazda CX-7 ER (EU) configurations from 2007-2012 is uniformly 1 liter, which is a typical fill volume for a compact rear differential unit of this class.
  • A 1-liter capacity figure without an accompanying change interval, as seen in the normal use rows for all listed engine variants, represents a reference fill quantity rather than a scheduled service event.
  • Under severe use conditions, the 2.2 CiTD variants rated at both 120 kW and 127 kW share a rear differential fluid change interval of 40,000 km, which is 5,000 km shorter than the interval specified for the petrol-engined variants under the same conditions.
  • The 2.3 DISI Turbo in both manual and automatic transmission configurations carries a severe-use rear differential change interval of 45,000 km, a figure that applies consistently across the 2007-2008 and 2009-2012 model year groupings.
  • The 2.3 DISI Turbo automatic spanning 2007-2012 shares the same 1-liter capacity and 45,000 km severe-use interval as the non-automatic 2.3 DISI Turbo, indicating no differential in service requirements between the two transmission types for this engine.
  • Severe use conditions in differential service contexts generally refer to operation involving frequent towing, off-road driving, or sustained high-load cycles, all of which accelerate fluid degradation and justify a defined change interval where normal use does not carry one.
  • The 2.5-liter variant covering 2009-2012 lists only a normal-use capacity of 1 liter, with no severe-use row present in the specifications for that engine.
  • The 2.2 CiTD engine was introduced in the CX-7 ER (EU) lineup from 2009, meaning the rear differential service data for diesel variants covers only the 2009-2012 period, while petrol variants account for the full 2007-2012 span.

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