Audi 80, 85 (B2) (EU)

Coolant capacity & service interval

Audi 80, 85 (B2) (EU) coolant capacity ranges from 6,5 to 8,1 liters. Service intervals require a change every 24 months. The data covers 9 configurations.

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

TypeSpecifications
80 quattro 2.1 (1982-1985)
  • Use: Normal
  • Capacity 8,1 liter
  • Change 24 months
80 1.3 (44 kW) (1981-1986)
  • Use: Normal
  • Capacity 6,5 liter
80 1.6TD (51 kW) (1981-1986)
  • Use: Normal
  • Capacity 6,5 liter
80 CD 5S 1.9 (85 kW) (1981-1983)
  • Use: Normal
  • Capacity 8 liter
80 1.6D (40 kW) (1980-1986)
  • Use: Normal
  • Capacity 6,5 liter
80 1.3 (40 kW) (1977-1981)
  • Use: Normal
  • Capacity 6,5 liter
80 1.6 (55 kW) (1977-1983)
  • Use: Normal
  • Capacity 6,5 liter
80 1.6 (63 kW) (1977-1983)
  • Use: Normal
  • Capacity 6,5 liter
80 GLE 1.6 (81 kW) (1977-1981)
  • Use: Normal
  • Capacity 6,5 liter

Additional Notes

  • Across the Audi 80 (B2) lineup, the cooling system capacity of 6.5 liters applies uniformly to all 1.3 and 1.6 petrol variants, as well as the 1.6D and 1.6TD diesel variants, spanning model years 1977-1986. This figure represents the total system fill volume, covering the radiator, engine block passages, and expansion reservoir combined.
  • The 1.6 petrol variants are represented by two distinct power outputs — 55 kW and 63 kW — both produced during 1977-1983, yet both share the identical 6.5-liter cooling system capacity, indicating a common cooling circuit architecture despite the difference in engine tune.
  • The 80 1.6D (40 kW), introduced in 1980, and the 80 1.6TD (51 kW), introduced in 1981, retain the same 6.5-liter cooling capacity as the petrol 1.6 variants. Diesel and turbodiesel engines of this displacement generation did not require an enlarged cooling circuit relative to their petrol counterparts in this platform.
  • The Audi 80 CD 5S 1.9 (85 kW), produced during 1981-1983, carries a cooling system capacity of 8 liters, noticeably higher than the 6.5-liter figure shared by all other listed variants. The five-cylinder 1.9-liter engine in this trim generates a greater thermal load, which corresponds to the larger coolant volume required to maintain operating temperatures.
  • The Audi 80 quattro 2.1, produced from 1982, holds the largest cooling system capacity in the lineup at 8.1 liters. The marginal increase over the 8-liter figure of the 80 CD 5S 1.9 likely reflects the additional thermal management demands of the all-wheel-drive drivetrain alongside the larger displacement engine.
  • Among all listed configurations, the 80 quattro 2.1 is the only variant with a specified coolant change interval, set at 24 months under normal use conditions. All other variants list only a capacity figure, with no change interval recorded in the specifications.
  • The 80 GLE 1.6 (81 kW), despite producing significantly more power than the standard 1.6 variants at 55 kW and 63 kW, shares the same 6.5-liter cooling system capacity. Higher output in this case was achieved through engine tuning rather than a fundamentally different cooling circuit design.

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