Audi 90 (EU)

Power steering fluid capacity & service interval

Audi 90 (EU) power steering fluid capacity is 0,65 liter. Service intervals are 15000 km or 12 months. Data covers 7 configurations.

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

TypeSpecifications
90 2.0 (1987-1991)
  • Use: Normal
  • Capacity 0,65 liter
  • Check 15000 km/ 12 months
90 2.2 (1986-1990)
  • Use: Normal
  • Capacity 0,65 liter
  • Check 15000 km/ 12 months
90 quattro 2.0 (1986-1987)
  • Use: Normal
  • Capacity 0,65 liter
90 quattro 2.2 (1986-1990)
  • Use: Normal
  • Capacity 0,65 liter
90 2.0 (1985-1987)
  • Use: Normal
  • Capacity 0,65 liter
  • Check 15000 km/ 12 months
90 2.2 (1985-1986)
  • Use: Normal
  • Capacity 0,65 liter
  • Check 15000 km/ 12 months
90 quattro 2.2 (1985-1986)
  • Use: Normal
  • Capacity 0,65 liter

Additional Notes

  • Across all listed Audi 90 (EU) configurations from 1985-1991, the power steering fluid capacity is uniformly 0.65 liters. A figure in this range is typical for a reservoir service fill rather than a full system overhaul, which would account for fluid retained within the rack, lines, and pump.
  • The front-wheel-drive 90 2.0 and 90 2.2 variants carry a stated check interval of every 15,000 km or 12 months under normal use conditions, whichever comes first. The dual-trigger format means the time-based threshold applies when annual mileage falls below that distance figure.
  • The quattro variants — the 90 quattro 2.0 (1986-1987), 90 quattro 2.2 (1985-1986), and 90 quattro 2.2 (1986-1990) — share the same 0.65-liter capacity as the front-wheel-drive models but carry no check interval in the specifications. No interval figure is associated with any of the quattro rows.
  • The 90 2.0 appears across two distinct production spans, 1985-1987 and 1987-1991, both returning identical capacity and interval values. The split likely reflects a mid-cycle mechanical or trim revision rather than any change to the power steering system specifications.
  • Similarly, the 90 2.2 is listed under two overlapping production periods, 1985-1986 and 1986-1990, again with no difference in the 0.65-liter capacity or the 15,000 km/12-month check schedule between the two entries.
  • All rows are designated under normal use conditions. In automotive service contexts, a normal use classification generally refers to standard on-road driving as opposed to severe conditions such as frequent towing, extreme temperatures, or predominantly short-trip operation.

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