Austin 1800/2200 (Balanza), ADO17

Brake fluid capacity & service interval

Austin 1800/2200 (Balanza), ADO17 uses brake fluid with a capacity range between min and max. Service intervals include checking at 5000 km/3 months or 10000 km/6 months and changing at 30000 km/18 months. The data covers 7 configurations.

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

TypeSpecifications
1800 Mk III (1973-1975)
  • Use: Normal
  • Between min and max.
  • Check 10000 km/ 6 months
  • Change 30000 km/ 18 months
1800 Mk III automatic (1973-1975)
  • Use: Normal
  • Between min and max.
  • Check 10000 km/ 6 months
  • Change 30000 km/ 18 months
2200 Mk III (1972-1975)
  • Use: Normal
  • Between min and max.
  • Check 10000 km/ 6 months
  • Change 30000 km/ 18 months
2200 Mk III automatic (1972-1975)
  • Use: Normal
  • Between min and max.
  • Check 10000 km/ 6 months
  • Change 30000 km/ 18 months
1800 Mk II (1968-1972)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1800 Mk II automatic (1968-1972)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months
  • Change 30000 km/ 18 months
1800 Mk I (1964-1968)
  • Use: Normal
  • Between min and max.
  • Check 5000 km/ 3 months

Additional Notes

  • Across all variants, the brake fluid capacity specification is expressed as a level range between a minimum and maximum mark rather than a fixed volume. This approach is standard for hydraulic brake reservoirs, where the acceptable operating level is defined by the reservoir's marked boundaries instead of a precise fill quantity.
  • The Austin 1800/2200 (ADO17) brake fluid specifications cover a hydraulic brake system across all listed variants, meaning the fluid serves the actuation of wheel cylinders or calipers through a sealed hydraulic circuit.
  • The 1800 Mk I (1964-1968) carries only a check interval of every 5000 km or 3 months, with no fluid change interval listed in the specifications for that variant.
  • Beginning with the 1800 Mk II (1968-1972), a fluid change interval of 30000 km or 18 months appears alongside the check interval. Both the manual and automatic transmission versions of the Mk II share identical check and change intervals.
  • The check interval for the 1800 Mk I and Mk II generations is set at 5000 km or 3 months. For the Mk III generation, introduced in 1973, the check interval extends to 10000 km or 6 months, doubling the distance and time thresholds compared to earlier variants.
  • The 1800 Mk III (1973-1975) and 1800 Mk III automatic (1973-1975) share identical brake fluid check and change intervals, indicating no differentiation between manual and automatic transmission configurations at the Mk III stage of the 1800 line.
  • The 2200 Mk III, available in both standard and automatic variants from 1972-1975, carries the same 10000 km or 6-month check interval and 30000 km or 18-month change interval as the 1800 Mk III variants. The change interval of 30000 km or 18 months is consistent across all Mk III configurations regardless of engine displacement or transmission type.

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