Audi 50, 86 (EU)
Coolant capacity & service interval
The Audi 50, 86 (EU) uses coolant with a capacity ranging from 5 to 6.5 liters depending on the configuration. The data covers 3 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
| Type | Specifications |
|---|---|
| 50 1.3 (44 kW) (1977-1978) |
|
| 50 1.1 (37 kW) (1974-1978) |
|
| 50 1.1 (44 kW) (1974-1978) |
|
Additional Notes
- The Audi 50 1.1 in both 37 kW and 44 kW outputs shares an identical cooling system capacity of 5 liters, indicating the same basic engine block architecture underlies both power outputs despite their different states of tune.
- A cooling system capacity of 5 liters is relatively modest, consistent with a small-displacement engine where the total coolant volume circulating through the block, head, and radiator is limited by the engine's physical size.
- The 50 1.3 (44 kW), available from 1977-1978, carries a notably larger cooling system capacity of 6.5 liters compared to the 1.1-liter variants, reflecting the greater thermal load generated by the larger displacement engine.
- The 1.5-liter difference in coolant capacity between the 1.1 and 1.3 engines represents a 30 percent increase, which is significant when calculating the correct antifreeze-to-water ratio during a full cooling system service.
- All three configurations list the use condition as normal, meaning the 5-liter and 6.5-liter capacity figures apply to standard operating conditions rather than a severe-duty or first-change scenario.
- The note "cooling system" across all rows indicates the listed capacity refers to the entire cooling circuit, not a partial fill such as the radiator alone, so a complete drain and refill requires the full stated volume.