German car-makers forced to recall 630,000 dirty diesels – Car Reviews, News & Advice - CarPoint Australia
German car-makers forced to recall 630,000 dirty diesels
It’s been reported that that Mercedes-Benz’s emissions equipment stopped working below temperatures of 10C while GM’s European brand, Opel, after-treatment became inactive below temperatures of 17C.
According to engineering analysts, “switching off” a diesel engine’s emission tech not only improves an engine’s performance but also lengthens the time between servicing.
It’s not known if the recall will increase running costs by increasing the frequency of servicing for all models.
Another Article:
While no manufacturer other than VW had used cheating software to recognise when a car is being put through emissions testing, it found carmakers were making liberal use of something they call a “thermal window.”
That “thermal window,” Reuters explains, allows automakers to to dial back emissions control systems to prevent condensation buildup in the catalytic converter during low ambient temperatures. This ultimately prevents rust buildup and premature catalyst failure.
Multiple Automakers Used 'Thermal Window' Loophole To Circumvent European Emissions Regulations: Report
Bookmarks