Reading the report, as an Engineer, and in light of other deceptions by VW.. Here are salient points that are exposed:
- VW flat out miscalculated mis-fuel the central issue, by a factor of 10.. that is outrageous.
- The before and after failure rates with the idiotic mis-fuel guard are statistically unchanged.
- There is a high failure rate, and a vehicle test by VW with an intentional defect on the HPFP roller was run for 23 hours, but had a near instant engine fault, and went to limp mode (this VWs attempt to deny sudden power loss, thus safety issue, but it also shows how any defect in the HPFP causes a near instant power loss).
- It has been clear that VW is well aware a large number of failures are NOT from mis-fuel, yet the freely continue to tell the customer, they are WRONG. This should not be excused. It is outrageous.
This report does not deny there is a problem, in fact it basically proves there IS a problem.. but it says no evidence yet of an accident due to this failure. It also says they are continuing to monitor the situation.
Now, full disclosure, I DUMPED my 2012 TDI, when I dug into the engineering issues of the HPFP, and had metal in my filter, only to have VW tell me it was OK, and charge me to look at it, under WARRANTY. In this report they show a VW provided picture of the fuel filter, mine was not quite as bad, but did have metal particles.. in sharp contrast with my Diesel truck filter with many more miles, and MANY more gallons of fuel through it. This HPFP is way too sensitive to fuel lubricity, and that makes it a fragile at best design, but what's worse, the failure contaminates the entire system due to idiotic and avoidable fuel system design. There simply is no denying it, this HPFP and fuel flow path is an engineering flaw, there are fixes, like the CP3 kit, if you keep your car, I HIGHLY advise that kit.. I went to the Cruze Diesel with a much more robust HPFP, and it does not need an idiotic mis-fuel guard, it has a LARGE fuel neck that even big rig pump nozzles can fit, because it is poor design to have such a fragile pump, and the VW mis-fuel claim was a blame the customer tactic that is proven false in this report, if you read the details.
VW tried to save about $330 per car, with the emission cheat, and the CP4.1/4.2 saved even MORE over the proven reliable CP3 pump.. so it is not hard to figure out why they chose this pump, what is despicable is how they blame the customer, and deny the problem.. and still refuse to make it right. It's sad, because there were some aspects of the car I really liked, but how can I trust such a company? Pretty hard to do given this clear undeniable pattern.