Quote:
Originally Posted by Neil
How does the DPF wreck your engine? It's just a lump in the exhaust.
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If it's blocked with particles or ash it creates massive back pressure in the exhaust system. As I recall this can damage the valves, pistons and turbo to a major extent.
The onboard computer lights a warning light when it detects a dangerous build-up of pressure but if you carry on without doing a 'burnout' it trips in a 'disabling' engine control. This drops your speed to about 50/55 and cuts the power down. Not funny if you're in the fast lane. You are committed to a dealer reset then. If you carry on-bang!
It's not like a catalyst, they don't block. It's actually a very fine filter.