Semi-Auto Transmission also known as clutch-less manual, automated manual or auto-shift gearbox (ASG) can be found in many different modern vehicles. Similar to a traditional torque converter automatic transmission the select lever has a neutral, reverse, automatic and manual gearshift position.
The movement of the clutch is done electric motors controlled by the transmission control unit. The clutch itself works off the same principles as a traditional clutch the difference being the control and movement is handled electronically.
ADVANTAGES
Option of either auto or manual operation
Highly efficient with low energy consumption
Low cost
CLUTCH REPLACEMENT
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Replacing a clutch in a semi-auto transmission does not take significantly more time than a traditional manual clutch. The workshop manual should be referred to ensure the correct procedure is followed when disconnecting and reconnecting the automatic shifting mechanisms which may require specific diagnostic kits.
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