VW caught by the Yanks for breaking emission laws

Try a toothbrush!

Cheers

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Originally Posted by PAT303

I wouldn't worry about your defender Mick,it's your Mazda you should be concerned about,in real world driving tests they pumped out more pollutants than any other make,10 times what VW produced. Pat

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Our Mazda 2 is petrol, not diesel, so is that still true? The wife wouldn't be pleased, as she thinks her 2 is the bees knees.

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You couldn't prize me out of the little 3 GT to a Golf in any universe.

Cheers

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Originally Posted by DiscoMick

Our Mazda 2 is petrol, not diesel, so is that still true? The wife wouldn't be pleased, as she thinks her 2 is the bees knees.

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Don't know about petrol,the diesel is a shocker,I'd like to know how they got it passed emission tests ;). Pat

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Originally Posted by PAT303

Don't know about petrol,the diesel is a shocker,I'd like to know how they got it passed emission tests ;). Pat

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The wife will be pleased.

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Still doesn't answer my question but does it. Pat

No.

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Originally Posted by PAT303

Don't know about petrol,the diesel is a shocker,I'd like to know how they got it passed emission tests ;). Pat

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Emissions tests are largely an honesty system. However IME the mazda "skyactive" diesels seem pretty good, and certainly drive well.

Australia is a long way behind the rest of the world in terms of emissions standards. Basically Ford and Holden jumped up and down and said it was all too hard, that is why the current EU/US regulations are being rolled out gradually until 2018. The sticking point seemed to be particle number emission measurement, even though my lab and a couple of others in Brisbane can measure it accurately. It is probably no coincidence that local manufacturing will cease before 2018.

Heavy vehicles are assessed on a sensible metric of emissions per kWh of engine output. Passenger vehicles have to conform to emissions per km regulations based on a standard "drive cycle" and acceleration rate. The EU acceleration rate has been criticised as being far too slow (granny on a sunday drive), as it was set in the '70s. The US (CARB) acceleration rate is far more realistic.

As for your previous question, if I had the answer I would be a billionaire. Diesels are the only viable solution for long haul transport, but I imagine that before too long most commuting in urban areas will be in electric vehicles. It is much easier to treat power station emissions than vehicle emissions.

From the amount of diesel soot my D4 deposits on the rear door,I wonder if we are the next on the chopping block????
Andrew

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Originally Posted by LandyAndy

From the amount of diesel soot my D4 deposits on the rear door,I wonder if we are the next on the chopping block????
Andrew

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My contacts in the European automotive industry are sure it is not limited to VW.

I have been surprised how much soot I have seen D3s/D4s/RR_Sports emit while driving around.

However for the EU regs (which we also have in Australia), a manufacturer could program a single map to meet emissions at low acceleration rates (as used in the test regulations) but still have plenty of power in the top end. This would not strictly be a "defeat device".

The US/CARB regs were a lot more stringent and use much more realistic acceleration rates, hence the 2 separate maps.