How can you be so dismissive of the problems caused by the emissions upgrade?

How can you be so dismissive of the problems your readers are reporting shortly after implementation of the VAG emissions upgrade? We know that soot increases three-fold after the upgrade. We know that soot causes long term damage to engines. We know that EGR valves and DPFs had problems before the upgrade and an increase in soot can only make things worse. We know that many vehicles presented for an upgrade will not be in tip top conditions and as a result failed early on. We know that as vehicles age they will all fail eventually, and we can surmise that all vehicles will have problems much earlier as a direct result of introducing the fix. During your trip, what verifiable evidence did the VAG engineers give you which demonstrates that customers' vehicles will not suffer problems with performance, fuel consumption, reliability and durability following implementation of the fix? Given the scale and significance of this issue, VAG should have produced loads of data and reports. What did they give you? If they don't know why it was fitted, they can't be sure that removing it won't cause problems. My bet is (that like Opel) the defeat device was introduced to prevent long term damage to engines. It follows that removing the defeat device will damage engines.

Asked on 1 April 2017 by

Answered by Honest John
What trip? The meeting was at the Sofitel at T5. I can only tell you what the VAG engineers told me. If they were not telling the truth and if VAG owners continue to have problems, then that will be exposed. Engine technology is now 12 years on from when the defeat software was applied, so what they are doing now to correct what they did then was not available then. However, the defeat software was very cynical. It is possible that the increased regeneration of the DPF will clog it up with ash sooner than might otherwise have been the case (Current EA288s regenerate more than EA189s used to.) But I don't have any evidence of that yet. If and when I do it will go into the relevant VAG entries in www.honestjohn.co.uk/carbycar/
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