Renault 25, B29 (EU)

Additional Notes

• The Renault 25 B29 automatic transmission fluid capacity splits into two distinct values across the model range: 2.5 liters and 4 liters. The 2.5-liter figure represents a service fill, meaning the amount of fluid exchanged during a routine drain-and-refill without a full overhaul or torque converter evacuation.
• The 25 2.0 TS, GTS transaxle shows a capacity change mid-production. Units from 1984-1989 carry a 2.5-liter service fill, while the 1989-1992 variant specifies 4 liters, indicating a revised or replaced transaxle unit requiring a larger fluid volume for the same service procedure.
• The term "transaxle" used for the 2.0 TS and GTS variants denotes a combined transmission and differential assembly, which is a layout common to front-wheel-drive vehicles. The separate "transmission" designation on the 2.2 TX, GTX and V6 variants reflects a different drivetrain architecture.
• All six configurations share an identical fluid change interval of 60,000 km or 36 months under normal use conditions, whichever comes first. The dual-trigger format means the time limit of 36 months applies even when the mileage threshold has not been reached.
• The 25 2.8 V6 Injection (1988-1992) is the only configuration in the range that includes a fluid level check interval, set at 10,000 km or 12 months. No other variant in the range carries a separate check interval alongside the change interval.
• The 25 2.7 V6 Injection (1984-1988) uses the 2.5-liter capacity, while the later 25 2.8 V6 Injection (1988-1992) specifies 4 liters. The displacement increase between these two V6 generations corresponds with the larger fluid capacity requirement in the automatic transmission.
• The 25 2.2 TX, GTX (1987-1992) specifies a 4-liter automatic transmission fluid capacity. At 2.2 liters of engine displacement, the TX and GTX trims represent the largest four-cylinder engine variant in the range, and the 4-liter transmission fill aligns with the same capacity used on the V6 models.