Transmission oil cooler issue

[Bingtheman]

 have a 2012 Audi A4 2.0 TDI, CVT transmission.
The gearbox oil cooler is part of the radiator, the pipe connectors seem to be an issue as they're forever leaking...I've had replacement radiators and pipes but all have leaked where the pipes connect, somewhat a poor design
Any suggestions would be welcomed.

[Magnet]

Welcome to the Audi Owners Club !

Good to have you onboard.

Hello Lee,

When you say the leaks occur where the pipes connect, is that at a threaded joint? 
Kind regards,

Gareth.