I've said this for a while.PhilMabbots17 wrote: ↑Tue Apr 16, 2019 3:39 pmSo all this time this probably wasn't a bad exhaust design at all. On the contrary maybe it was a rather clever and elegant exhaust design that could have worked brilliantly had it been strapped to a hot, efficient, diesel engine producing less HC/PM, with an oxidation catalyst that actually worked - and SCR and LP EGR systems that were turned down for the most part so that they didn't interfere overly with the otherwise immaculate operation of the system. Without the vital contribution of the acoustic function on the ECU, though, out in the real world such a system would instantly start exhibiting several tell-tale malfunctions.
I think it is right that prosecutors are still chasing VW and hopefully Bosch. Before we blame JLR (and others) of just trying to con us, the scenario VW effectively created has skewed the entire diesel market. If you were not VW, you would have been scratching your head as to how they were able to produce such 'clean' diesel engines that you *had* to compete with. Cue Robert Bosch who could provide you with an ECU that could help... Both companies absolutely did it to increase their market share. VW group have benefited massively from diesel, and the whole scandal has made quite a few competitors exit the market completely. Sure diesel is now in decline, but I suspect VW group share of diesel hasn't dropped that much as outside of cities, it still makes sense to many, and that's a huge market in Europe.
JLR and others are effectively collateral damage in this as I suspect the likes of Bosch know JLR can't just name & shame them as they are now completely reliant on Bosch ECU's and changing that is not straightforward, so to turn whistleblower is unlikely. So Bosch have also benefited. Companies not using their ECU's, or not based in Europe where diesel matters, have given up as a result. So Bosch probably are more dominant in what remains of the diesel market too.
Sure, JLR have not handled this well, but I agree it seems highly unlikely that JLR's engineers are so bad that they could design an exhaust architecture for many models that simply did not work. So for me, the blame lies at VW/Bosch's door, as it's clear now that to properly meet EU6 emissions requires a lot of effort and reduced service intervals, higher DEF usage than initially expected, and probably (we're yet to find out) expensive repair bills to the emissions systems long before you would reasonably expect due to the stress they now seem to be under. The full impact of all this is not yet apparent. There could be a real lack of second hand diesel cars in 5-6 years as EU6 models become uneconomical to repair, and second hand values plummet.
If VW group offer incentives to existing customers to switch to their then new hybrid/EV models they will continue to retain market share built up fraudulently.