Citroën AX

Differential fluid capacity & service interval

Citroën AX differential fluid capacity ranges from 0,8 to 0,85 liters. Service intervals require a check every 60000 km. The data covers 4 configurations.

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

TypeSpecifications
  • AX 11 4x4 (1992-1996)
  • Rear
  • Use: Normal
  • Capacity 0,85 liter
  • Check 60000 km
  • Code: (4x4)
  • AX 14 4x4 (1992-1996)
  • Rear
  • Use: Normal
  • Capacity 0,85 liter
  • Check 60000 km
  • Code: (4x4)
  • AX 11 4x4 (1991-1992)
  • Rear
  • Use: Normal
  • Capacity 0,8 liter
  • Check 60000 km
  • Code: (4x4)
  • AX 14 4x4 (1991-1992)
  • Rear
  • Use: Normal
  • Capacity 0,8 liter
  • Check 60000 km
  • Code: (4x4)

Additional Notes

  • All four configurations covered here are four-wheel-drive variants of the Citroën AX, specifically the AX 11 4x4 and AX 14 4x4, each spanning two distinct production sub-periods with differing rear differential fluid capacities.
  • The 1991-1992 production period for both the AX 11 4x4 and AX 14 4x4 shares an identical rear differential fluid capacity of 0.8 liter, indicating a common rear differential unit across both engine variants during that window.
  • From 1992 onward, both the AX 11 4x4 and AX 14 4x4 carry a rear differential fluid capacity of 0.85 liter, a modest increase of 0.05 liter over the earlier specification, which points to a revised or updated rear differential assembly introduced at that point in production.
  • The 0.8 and 0.85 liter figures represent service fill capacities, meaning the volume of fluid required when refilling a differential already installed in the vehicle, rather than a full overhaul or bench-fill quantity.
  • A check interval of 60,000 km applies uniformly across all four configurations under normal use conditions, meaning the rear differential fluid level is to be inspected at that mileage threshold rather than replaced on a shorter cycle.
  • The fact that the check interval remains at 60,000 km across both the pre-1992 and post-1992 variants, despite the capacity change, indicates the interval specification was not revised alongside the capacity update.

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