TABLE OF CONTENTS 1. INTRODUCTION.........................................................................................................................................1 2. DRIVETRAIN LAYOUT, MOUNTING AND LOCATION.............................................................................2 3. TIGHTENING TORQUE..............................................................................................................................3 4. SPECIAL TOOL........................................................................................................................................10 5. EXPLODED VIEWS OF DCT...................................................................................................................12 6. GENERAL INTRODUCTION TO DCT......................................................................................................15 A. TRANSMISSION DIAGRAM AND TERMINOLOGY...........................................................................15 B. BASIC PRINCIPLES OF THE DT1 DOUBLE CLUTCH TRANSMISSIONS......................................15 CLUTCH ACTUATION.................................................................................................................15 I. GEAR ACTUATION......................................................................................................................16 II. C. KEY COMPONENTS..........................................................................................................................17 TCU ..............................................................................................................................................17 I. FILTER .........................................................................................................................................18 II. PUMP...........................................................................................................................................19 III. HYDRAULIC CONTROL UNIT....................................................................................................20 IV. V. POWER SHIFT MODULE............................................................................................................21 VI. BLDC DRUM MOTOR.................................................................................................................21 GEARTRAIN...............................................................................................................................22 VII. PARK LOCK..............................................................................................................................23 VIII. 7. SERVICE INFORMATION........................................................................................................................24 A. TOWING OF THE VEHICLE..............................................................................................................24 B. SERVICE INTERVALS.......................................................................................................................24 C. OIL SPECIFICATION..........................................................................................................................24 D. ENGAGING THE PARK GEAR..........................................................................................................24 E. TRANSMISSION CIRCULAR CONNECTOR LAYOUT......................................................................24 F. TCU INTERFACES.............................................................................................................................25 G. CONNECTOR PIN ALLOCATION......................................................................................................26 H. CLUTCH ADAPTION .........................................................................................................................29 REQUIRED ACTIVITIES AFTER TCU AND/OR HCU REPLACEMENT............................................32 I. 8. SERVICE ON VEHICLE DCT COMPONENTS REMOVAL PROCEDURE..............................................34 A. BATTERY REMOVAL.........................................................................................................................34 B. BATTERY TRAY REMOVAL...............................................................................................................35 C. TCU REMOVAL..................................................................................................................................35 Dual Clutch Transmission (DCT)
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