was in the paper yesterday a blokes jag, his dpf blocked up a few times and the dealers blammed him for his plodding around driving

my uncles got a 2 litre tdi mk6 golf and that's happened 3 times now. 1st time we sent back to vw as we plugged it in on the diagnostics at work and 1 of the pressure sensors was gone, making it go into limp home mode.
think someone told me it was on watchdog a couple weeks back aswell, people saying they buy a fiat 500 for cheap economical running but the dpf is forever blocking up hahaha