This manual covers the AL4 automatic gearbox transmission, also known as DP0 in some Renault applications, a 4-speed automatic transmission with a torque converter. It was a key component for a wide range of popular European vehicles from the late 1990s through the mid-2010s, commonly found in models from Peugeot and Renault. The AL4 is recognized for its relatively straightforward design for its era and is typically paired with 1.4L to 2.0L petrol engines, though it can also be found with diesel variants. While a robust solution, it requires precise maintenance to ensure optimal performance and longevity.

This comprehensive service repair workshop manual provides detailed information for the complete AL4 automatic transmission system, including hydraulic control, electronic control, mechanical components, and cooling systems. It covers essential maintenance procedures such as fluid and filter replacement, as well as in-depth diagnostics, troubleshooting guides, and expert repair and rebuild procedures. The manual also includes technical specifications, wiring diagrams, and torque values, making it an invaluable resource for owners, mechanics, and technicians seeking to maintain, repair, or diagnose issues with this transmission.