Volkwagen Golf Plus diesel losing power

I'm having an issue with my 2009 Volkwagen Golf Plus 1.9 TDI. After driving the car between 20 - 40 minutes, there is a sudden loss of power, a lot of smoke, a burning smell and a crunching sound from the front. The car will then only rev to about 2000rpm and barely moves.

No faults show on the dashboard, the engine temperature never rises abnormally high and the oil level is normal and shows no signs of loss. Once the car has been switched off for between 5 - 20 minutes, it seems to drive normally again, although the engine before and after the problem feels ‘lumpy’. This has happened four times in four days. Any ideas on what could be causing this?

Asked on 10 September 2016 by Darren

Answered by Honest John
I'd guess that the turbo bearing oil feed and oil return pipes are partially blocked with carbon, starving the turbo bearing of oil and stopping if from turning freely. This would have nothing to do with replacing the ABS module brake pressure sensor.
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