Ive one. Also ex mechanic.
Rust. Check it well rear arches and sliding door step especially.
They can be hard on ball joints so get it on a rough road and listen.
What engine is it? Ive a 2.5tdi 88bhp Ajt engine code. Its on bosch injectors and a 5th gear mod will do 40+ on a run.
Mine Randomly snapped the clutch pedal last week.
They can crack the mount for the master cyl. So look. You can add a reinforcement plate for about a tenner.
Other than that bar usual wear shes been good.