- - - Function: Aisin AW-designed 8-speed transverse automatic (TF-80SC lineage) for FWD/AWD platforms (torque capacity 450Nm).
      
      Key Features:
      - Shift Logic: BMW/Mini-specific programming with sport/eco modes
      - Start-Stop Ready: Reinforced auxiliary pump maintains hydraulic pressure
      - Modular Construction: Separate mechatronics unit (simplifies repairs)
      Common Failures:
      - Solenoid Wear: Particularly shift solenoids 3/5 (P17D1/P17D4)
      - Converter Clutch Shudder: Lockup judder from worn apply piston (P0741)
      - Case Leaks: Main seal failure near differential output
      Critical Service Notes:
      1. Fluid: Only BMW/Mini ATF-3 (5.5L capacity)
      2. Adaptations Reset: Required after fluid service (ISTA/P required)
      3. Thermal Management: Monitor oil temp – sustained >120°C degrades fluid
      Pro Tip: Check mechatronic sleeve seals during fluid changes – seepage causes erratic shifts.

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