Audi a3 lacking power.

[Tommyfazza]

Hi my audi a3 2.0 tdi suddenly lost power and revs really high when parked up. It ticks over sound but when you rev it black smoke comes out the exhaust. Can anyone help 🤔

[Decky_Q]

Where are you?
Get it recovered to a garage.

[Section 8]

So it revs high when parked or it idles fine? Crankcase Vent valve maybe? Symptoms are high revving and black smoke so it would be a starting point. Can you get it on a code reader?