This is the B6 Passat generation (2005–2010); common diesel engines in 2009 cars are 1.9 TDI or 2.0 TDI. Manual models use a dual‑mass flywheel on many engines, and diesels of this era commonly have DPF and EGR systems — both can cause problems if the car has mostly short trips. Parts are easy to source in Ireland and labour is straightforward, but clutch/DMF and DPF work can be relatively costly on an older car.

• DPF & EGR behaviour: look for frequent DPF warnings, forced regen history or heavy soot build‑up (especially if the car was used mainly for short trips).
• Clutch and dual‑mass flywheel: check for slipping, judder or rattling on cold start and when changing gears (DMF replacement is a common invoice on manuals).
• Turbo condition: listen for whistling, rattling or delayed boost; check for excessive smoke under acceleration.
• Oil leaks and consumption: inspect around the camcover, oil cooler lines and turbo oil feed for seepage and check under the car for drips.
• Body & suspension wear: check rear trailing arm bushings and front top mounts for play, and examine sills/arches and underside for corrosion given the car’s age.