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Honda 1.6 iDTECs seem quite capable of hitting their test figures IRL. Not VAG and not sold in the USA though.
[TW]Fox;28598532 said:Except most consumers incorrectly believe they should be able to, how stupid of them to think quoted fuel economy figures in advertising are something they should see themselves if they buy the product
Do other automakers do this?
No one knows. That’s part of what the EPA is investigating. The lab that tested the VWs also tested a diesel BMW X5, which passed.
In my book Audi's CRIMINAL act was selling me an RS4 that was never close to the BHP figures they suggested. I don't care if babies choke from diesel smog, I am really worried if my nought to sixties are wrong, THAT is criminal.
Warm up profile of engines from cold start (25degC ambient temp) means that the engine will behave differently outside the specific EU cycle and at different ambient temps. This is called cycle beating but it is currently legal. Most PEMs measurements are taken from a hot engine - this is not the case during the drive cycle. Engines are optimized to lower NOx emissions during the warmup phase, and the hot fast section is at higher engine loads.
The defeat devices that VW are using turn off the emissions controls when the steering wheel is being used.
There is a ‘real world’ measurement using PEMs by Emissions Analytics of a EU6 compliant Audi A8 with the 3.0 diesel. This was x22 times over the EU limit of NOx, hence it will have a defeat device restricting the urea flow when not driven on a chassis dynamometer.
In summary, BMW is just playing by the rules to be competitive. VW is cheating.
Let's say VW are forced to fit some form of nitrogen oxide trapping device, or release a software update which forces the emissions control mode to always one.
Where would you stand regarding being miss-sold a product if it no longer performs as per their started specifications after the modification ?
The above is a joke, but could well end up happening.
[TW]Fox;28607580 said:You surely didn't buy it expecting to hit the quoted figures though?
[TW]Fox;28607580 said:You surely didn't buy it expecting to hit the quoted figures though?
How far off was it?
[TW]Fox;28607638 said:34mpg from a 2.0TdI Audi on a motorway isn't cheating. Its broken.
My 530i can do that!