GA8G45AW-SEQE Automatic Transmission Assembly 24005A2AC27 For Mini F54 BMW X1 F48

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.