The 2.5 tdi is the problem.
Its a diesel! diesels are proned to go Bust.
Most of the time its the bosch fuel pump.
What do they do with it when it goes into the garage?
I say replace the injector's, Fuel filter and Glow plugs.
When was its last service?
If all of this has been done...Well hun, take it to the scrap man.
And get Vauxhall. Mine aint had a cambelt changed in 145,000 miles (due its 2nd one) and it sat for a year. It started 1st time.
Never let me down not once.
My previous car (a new model renault) broke down at 64,000 miles and Would cost me £1000 to fix! Forget it i said. Thogh Im not one to get too emotionally attached to a brum brum.