Do S90/V90 Adblue engines avoid EGR woes?

[Quacker]

Originally Posted by Zebster

Not sure what you mean by 'fraction' but obviously those numbers are growing... mine is on its second EGR valve, third EGR cooler and now awaiting the current recall work. The main forum thread on the EGR blockage subject has a huge number of owners reporting repairs that Volvo have funded, plus the recent threads (like this one) also mention rectification work. That 'fraction' is obviously not insignificant!

And how much will the current Volvo manifold recall (over half a million vehicles) cost them? And how can you put a figure on the reputational damage and resulting loss of future sales that Volvo must now suffer? I bet they now wish they'd fitted AdBlue to all VEA engines...

2015 vehicles would be Euro5 compliant, not 6, in all probability. Not many used DEF on cars back then. Peugeot were just introducing it perhaps, and some USA bound models will have had it.

EGR has been used since the early 1990’s and my old ‘93 Trooper had it and so did the ‘95 Terranos, and my ‘98 Cruiser has it plus a catalytic converter.

[Zebster]

Originally Posted by Quacker

2015 vehicles would be Euro5 compliant, not 6, in all probability. Not many used DEF on cars back then. Peugeot were just introducing it perhaps, and some USA bound models will have had it.

EGR has been used since the early 1990’s and my old ‘93 Trooper had it and so did the ‘95 Terranos, and my ‘98 Cruiser has it plus a catalytic converter.

My 2015 (MY14) is claimed by Volvo to be Euro 6 compliant. Lean NOx Trap Technology was necessary to achieve this.

[Quacker]

Originally Posted by Zebster

My 2015 (MY14) is claimed by Volvo to be Euro 6 compliant. Lean NOx Trap Technology was necessary to achieve this.

Just checked and you are correct. D4 engines from Sept2014 are Euro6 compliant.
Lean NOx trap technology is used by very many brands of road and industrial engines.

[Haldex]

Originally Posted by Zebster

Not sure what you mean by 'fraction' but obviously those numbers are growing... mine is on its second EGR valve, third EGR cooler and now awaiting the current recall work. The main forum thread on the EGR blockage subject has a huge number of owners reporting repairs that Volvo have funded, plus the recent threads (like this one) also mention rectification work. That 'fraction' is obviously not insignificant!

And how much will the current Volvo manifold recall (over half a million vehicles) cost them? And how can you put a figure on the reputational damage and resulting loss of future sales that Volvo must now suffer? I bet they now wish they'd fitted AdBlue to all VEA engines...

Fraction- meaning there had been cars with EGR-related issues- but not nearly as many as those that have been trouble-free. As much as your particularly bad experience tells you otherwise.

Based on what have you concluded that the manifold recall relates to non-AdBlue cars alone?

[airforced]

Originally Posted by Quacker

Just checked and you are correct. D4 engines from Sept2014 are Euro6 compliant.
Lean NOx trap technology is used by very many brands of road and industrial engines.

I am confused. My 2018 D4 is not subject to the 'recall'. I think I'll wait and read the full outcome of all this before even trying to come to any conclusions about which D4 engines are involved and the reasons why. There are a lot of theories being put forward and none of them answer all (or any of) the questions.

[Zebster]

Originally Posted by Haldex

Fraction- meaning there had been cars with EGR-related issues- but not nearly as many as those that have been trouble-free. As much as your particularly bad experience tells you otherwise.

Based on what have you concluded that the manifold recall relates to non-AdBlue cars alone?

I have no data on whether the majority of VEA owners have experienced EGR/soot-related problems or not, and I suspect you don't either. But our assumptions on this clearly lie on opposite sides of the mean!

I can now see that maybe you were using the expression 'fraction' in relation to more or less than 1/2, whereas my point about fractions was that, for example, both 999/1000 and 1/1000 are fractions, so a tad meaningless as a definition when trying to estimate/realise the scale of the pre-recall problem. However Volvo have now specifically stated that the recall involves a total of 507,000 vehicles worldwide, which is obviously therefore an accurate figure upon which to base estimates for the likely magnitude of the cost to them.

Again we have no data, so my conclusion (perhaps more of an assumption, really) regarding the manifold problem only affecting pre-AdBlue VEAs is based on experience with other diesel engines, my engineering judgement and (mostly) what I've gleaned from this forum... so when I see a post from a VEA AdBlue owner who has actually suffered a soot build-up problem then I'll know I'm wrong. It does happen...