Transmission families, fluids and failure patterns
A structured reference for automatic, DSG, CVT and dual-clutch transmissions with service notes and related fault codes.
Transmission fluid, symptoms and related codes
This section maps automatic, dual-clutch and CVT transmission families to fluid type, service notes, common failures and OBD2 codes. For harsh shifts, slipping, delayed engagement, overheating or P0700/P0715/P0720, confirm the exact transmission family first.
ZF 8HP
Torque-converter automatic, 8-speed. Applications: BMW, Audi, Jaguar.
Volkswagen Group DQ250 DSG
Wet dual-clutch transmission, 6-speed. Applications: Volkswagen GTI, Audi A3, Skoda performance models.
Ford/Getrag DPS6 PowerShift
Dry dual-clutch transmission, 6-speed. Applications: Ford Focus, Ford Fiesta.
Aisin TF-80 / AF40
Torque-converter automatic, 6-speed. Applications: Volvo, Saab, Opel/Vauxhall.
Jatco CVT7/CVT8 family
Continuously variable transmission, CVT. Applications: Nissan, Mitsubishi, Renault alliance vehicles.