Quote:
Originally Posted by D4dilemma
With respect to the D4 engine Volvo have attempted to cover up the Insoluble EGR issue where manifolds and other parts become blocked not just sooted up. When like mine the inlet valves get affected repairs cost thousands and can need a new engine....Volvo promised a permanent EGR fix with new cooler etc which categorically did not work to the extent that the manifold problem has now transpired.
Whilst localised EGR Valve issues are par for the course in Diesel engines it is not “normal” for engines to contain a self destruct mechanism to the above extent. Volvo pay off those who push it far enough and hope the rest don’t notice..
It is disingenuous for Volvo not to state the reason for the overheating in their notification. Especially as the underlying cause has not been able to be addressed in the years since it became known and they failed in their legally binding promise to fix it.
I am surprised if D5 engines are affected as they do not particularly feature in long threads about D4 EGR issues.
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Perhaps because most (all?) D5 VEA engines use AdBlue. The eventual use of AdBlue on the VEA engines must have massively reduced the previous heavy reliance upon EGR to meet Euro 6 targets. The introduction of AdBlue might also be seen as an admission that the earlier VEAs had a known problem...