Audi 100, F104 (EU)

Manual transmission fluid capacity & service interval

Audi 100, F104 (EU) manual transmission fluid capacity is 2 liters. Service intervals include 500 km and 30000 km. The data covers 18 configurations.

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

TypeSpecifications
100 L (1974-1976)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 L (1974-1976)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 (1971-1974)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 (1971-1974)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 Coupé S (1971-1976)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 Coupé S (1971-1976)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 LS (63 kW) (1971-1974)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 LS (63 kW) (1971-1974)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 Coupé S (1970-1971)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 Coupé S (1970-1971)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 GL (1970-1976)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 GL (1970-1976)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 (1968-1971)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 (1968-1971)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 LS (74 kW) (1968-1971)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 LS (74 kW) (1968-1971)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1
100 S (1968-1971)
  • Use: Normal
  • Capacity 2 liter
  • Change 30000 km
  • Code: 4/1
100 S (1968-1971)
  • Use: Initial service
  • Capacity 2 liter
  • Change 500 km
  • Code: 4/1

Additional Notes

  • The Audi 100 F104 (EU) manual transaxle holds 2 liters of fluid across all variants covered in the 1968-1976 specifications, including the base 100, 100 S, 100 GL, 100 L, 100 LS, and 100 Coupé S. A 2-liter capacity is characteristic of compact transaxle units where the gearbox and final drive share a common fluid sump.
  • The normal-use service interval for the manual transaxle is 30,000 km across every variant in the specifications. At mid-20th-century driving speeds and road conditions, a 30,000 km interval represented a moderately conservative schedule for gear oil maintenance.
  • An initial service interval of 500 km is specified alongside the normal 30,000 km interval for all variants. An initial service at such a short interval is associated with break-in periods, during which metal particles shed by newly machined gear and bearing surfaces accumulate in the fluid and are removed before they cause abrasive wear.
  • The 100 LS is listed in two distinct power output variants: 63 kW (1971-1974) and 74 kW (1968-1971). Despite the difference in engine output, both share the same 2-liter transaxle capacity and identical 30,000 km normal and 500 km initial service intervals.
  • The 100 Coupé S appears in two consecutive production spans, 1970-1971 and 1971-1976, each carrying the same transaxle fluid capacity and service intervals. The split into two entries reflects a variant or specification revision at 1971 without any change to the fluid system data.
  • The 100 GL (1970-1976) and 100 L (1974-1976) share the same transaxle specifications as the broader model range. The GL and L designations typically denoted trim or equipment levels rather than mechanical differences, which is consistent with the uniform fluid capacity and interval data across all variants.

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