When is euro Vi complusary on existing new vehicles

[Tornado T5]

Hi All,

As question implies, does anyone know when Euro VI regulations apply to new vehicles, specifically one currently in production but newly manufactured?

[feenix74]

https://en.wikipedia.org/wiki/Europe...passenger_cars

All dates listed in the tables refer to new type approvals. The EC Directives also specify a second date—usually one year later—which applies to first registration (entry into service) of existing, previously type-approved vehicle models.

[Tornado T5]

Thanks Feeix74,

Sorry, I should have stated regs for Australia as manufacturers can still sell EuroV engined vehicles because we lag behind. What I was trying to "guesstimate" was the time where VW will be forced to sell EuroVI tdi's in the Transporter (already in the Multivan) hopefully meaning the tdi450 will be offered in them as it would be unlikely they would only offer the lower powered EuroVI versions when the change must take place.

[Ryeman]

I would celebrate euro vi for its adoption of ad blue which I'm thinking will put less demand on the EGR valve and thus extend it's life.
The actual cost of the fluid is negligible AFAIK.
Mercs have had it for years because I assume they weren't into cheating.

[Greg Roles]

EGR and DPF function are mutually exclusive in this instance mate, EGR functions to lower combustion temps and decrease NOX, at the expense of extra soot. Ad Blue / exhaust additives are about soot particulates, and reducing them down to near zero size. What I like about Euro Vi is the NOX and DPF cats after the turbo are as big as the engine, and of a very clever design, they have had to get very serious.

[Ryeman]

That's not my understanding Greg.
I thought it was NOx treatment downstream of the particulate filter.
Its the NOx that VW are forced to deal with rather than their cheat which was devised to avoid SCR fitment.

[Greg Roles]

Wow I looked into it and you are right. So very odd, as NOX is the easy part to deal with in the mix, at least in my little world.

[Ryeman]

A reasonable easily understood piece on SCR using adblue here
What is SCR? | Diesel Technology Forum

[Ryeman]

A video along the same line - U.S. vehicles but the same technology
https://youtu.be/yzRR8BTVsyw

[gldgti]

I wonder if anyone has tried getting rid of the EGR completely in favour of a more hardcore post-treatment system? That would be cool - go back to having no-gunk in the intake.