BMW 5 series, E12 (USA)
Manual transmission fluid capacity & service interval
BMW 5 series, E12 (USA) manual transmission fluid capacity is 1,1 liter. Service intervals include checking at 125000 miles or 12 months and changing at 25000 miles or 24 months. The data covers 2 configurations.
The configuration chart below lists fill volumes and service intervals for each engine and trim variant.
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Additional Notes
- Both the 528i and 530i variants of the BMW 5 Series E12 (USA) use a Getrag manual transmission with a fluid capacity of 1.1 liters, which is a typical fill volume for a compact manual gearbox of that era and reflects a service fill rather than a full overhaul quantity.
- The 528i covers model years 1978-1981, while the 530i covers 1975-1978, meaning the two variants share an overlap year of 1978 within the E12 generation's USA production span.
- Under normal use conditions, the fluid check interval for both the 528i and 530i Getrag manual transmission is set at 125,000 miles or 12 months, whichever comes first.
- The fluid change interval under normal use conditions is 25,000 miles or 24 months for both variants, a notably shorter mileage threshold compared to the check interval, reflecting the maintenance expectations of manual transmission fluid from that period.
- The 24-month change interval paired with the 25,000-mile figure means time elapsed can trigger a fluid change well before the mileage threshold is reached, particularly for lower-mileage vehicles driven infrequently.
- The identical capacity, check, and change specifications across both the 528i and 530i confirm that the Getrag manual transmission unit shared between the two engine configurations carried uniform fluid service requirements despite differences in engine displacement.