Audi 80, 80/82 (B1) (EU)

Additional Notes

• The Audi 80/82 (B1) manual transaxle service fill capacity of 1.6 liters applies uniformly across the 1.3 (44 kW) and both 1.5-liter variants, as well as the 1.6 (63 kW) 82 series. A service fill reflects the amount of fluid added during a routine top-up or change with the unit still in the vehicle, where some residual fluid remains in the housing.
• The 80 GT (1973-1975) and 80 GTE (1975-1978) are the only configurations in the lineup specifying both a dry fill capacity of 1.8 liters and a service fill of 1.6 liters. The dry fill figure represents the total fluid volume required when filling a completely drained or newly assembled transaxle, accounting for all internal passages and cavities holding no residual fluid.
• The 0.2-liter difference between the dry fill and service fill on the 80 GT and 80 GTE transaxles indicates that approximately that volume remains trapped in the unit during a standard drain-and-refill procedure, which is a common characteristic of transaxle designs where full drainage without disassembly is not achievable.
• Under normal use conditions, the 1.3 (44 kW) and all 1.5-liter variants share an identical service interval structure: a fluid level check at 15,000 km and a full fluid change at 45,000 km. The 45,000 km change interval was a relatively extended schedule for manual transmission fluid by the standards of early 1970s service practices.
• An initial service change interval of 500 km is specified for the 1.3 (44 kW), both 1.5-liter variants, and the 1.6 (63 kW) 82 series. At 500 km, a newly run-in gearbox typically contains fine metallic particles generated by the bedding-in of gear and synchronizer surfaces, and removing this contaminated fluid early is the purpose of the short first-change interval.
• The initial service rows for the 1.3 (44 kW) and 1.5-liter variants carry the same 1.6-liter service fill capacity as the normal-use rows, confirming that the 500 km break-in change involves the same fluid volume as any subsequent routine change.
• No check interval is listed under the initial service condition for any variant, only a change interval of 500 km. Under normal conditions, the check interval of 15,000 km and the change interval of 45,000 km are both present, indicating a structured two-stage monitoring approach for ongoing maintenance.
• The 80 GT and 80 GTE rows list no check or change intervals, only capacity figures. Neither an initial service entry nor a normal-use interval schedule appears for those two configurations in the specifications.
• The 1.5-liter engine appeared in two distinct power outputs within the B1 generation: 55 kW and 63 kW. Both share the same 1.6-liter service fill capacity and the same 15,000 km check and 45,000 km change intervals, meaning the difference in engine output had no effect on the manual transaxle fluid service specifications.
• The 80 1.5 (55 kW) configuration spans two separate specification rows distinguished by body designation: the standard 80 covering 1972-1976 and the 80/82 variant covering 1976-1978. Both carry identical capacity and interval figures, reflecting a continuity of the transaxle specification across the mid-generation body update.