Last year my gearbox died, couldn`t afford a new one so replaced with a used one.
Two days ago it started dying again.
Lost all power, gears lit up on the dash.
RAC came out and it gave these errors. He cleared the errors so I could drive home.

System Type: GEARBOX
Name: GEARBOX - 01J
DTC: 17114,Incorrect Gear Ratio
DTC: 18148,Clutch temperature
DTC: 18172,Transmission fluid temperature
System Type: GEARBOX
Name: GEARBOX - 09L
DTC: 17114,Incorrect Gear Ratio
DTC: 18148,Clutch temperature
DTC: 18172,Transmission fluid temperature

Worked for about 10 miles then started jerking again, lost power and gear lights flashing on dash.
Is this a new gear box again?, not sure what to do as can`t afford much and its too nice to scrap.
Cars an 06 A4 S-line 2.0 TDI