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

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.