I've read a few articles recently about the rumoured change in MOT regs due Feb 2014 regarding dpf. It will now include an inspection to ensure it's present on vehicles which should of had one from the factory. I thought no problem, as long as you've had the original hollowed out and not had a replacement pipe installed. I then then spoke to a local MOT place and he said that they may have to carry out an internal inspection as well! I'm holding off in light of this and would be interested to hear others MOT experiences with dpf delete?
may be down to individual stations , I asked the station i normally use about this as far as he was concerned its just a visual check the pipe is there and no obvious signs of damage/tampering and the warning as been deleted
There is a van locally that advertises on dpf deleting all graphic'd up, so can't be illegal yet... As above MOT is visual only. Some arse wipe could fail you for hanging an air freshener if they wanted as they dont have to move it.
Mot is purely visual, you're not allowed to remove anything. Only allowance is to adjust headlight aim, this was only allowed as it is the highest reason for rejection! Will be interesting in many years when cars start falling apart from corrosion that's hidden behind undertrays/belly pans! DPFs are pointless anyway, everything it 'collects' and stop going to atmosphere will be burnt off during a regen cycle anyway! Whatever keep the eco freaks in power happy.
but how is a device that collects all the "dirt" and than uses even more fuel to burn it of and in the end make more "dirt" expelled in to the atmosphere god for people / environment. or how can something be god for people and bad for environment regarding health
What MilosB said. The dpf collects particles/soot that would be normally expelled out of the exhaust as per the last XX years. In theory great as they can be up to 80-100% efficient. The reality is the soot still has to be burnt off and let to atmosphere. There are a few systems that do this, some work on additional fuel being added to heat the dpf and some work on a system that injects an additive (purified pigs p*ss) to lower the burn temp of the soot. It makes them look good on paper, costs a fortune to replace it if the regen is unsuccessful and means added manufacture costs, repairs etc. Personally I can see the trend of the diesel popularity for mpg etc turning back to petrol as the engines are becoming more and more efficient and higher level of refinement. But we're missing the biggest problem with a dpf.....it's a restriction in the exhaust, rip the bugger out and let it breathe!!
It is better for people's health to remove the particulates. The particulates get burnt so a gas is released and not soot I personally think that dpf are rubbish. I have to drive my fiance's golf from time to time, or it feels sluggish.
When the dpf is removed and hollowed out is there any obvious sign of tampering if done well? When you say the warning deleted, do you mean the regen cycle warning light being mapped out? I don't see how they can check that.
I hear car manufacturers are looking into HGV Adblu systems in passenger cars... That'd be a mega additional cost.
