I have problem with MAN TGA ZF AStronic gearbox.

The errors i get are:

TCU 3145
TCU 3147
TCU 3154
TCU 3155
TCU 3150

My first thought was the clutch, found broken springs on the clutch disc .
Replaced the clutch disc ,pressure plate, bearing with genuine SACHS kit.

But the error codes remained.

It is difficult to engage in forward and revers.

Any suggestion is appreciated.