common rail fuel pump failures

This is just another example of why we need the 'lemon law' in this country.

Did you get an independent analysis of the fuel. Sounds like contaminated fuel - do you really believe the fuel supplier?

Seems like a he said, she said argument at the moment and in court you will have to prove the parts failed as you indicated and was not contaminated fuel.

If it had been me I would have gone with the contaminated fuel line and claimed on my comprehensive car insurance.

Would be cheaper and less hassle.

Garry

G'day Dave
Same Q's so not diesel fuel specialist though but now what you mean.
While anything can fail, if the springs do fatigue they will destroy the pump as you have found so that would be a warranty issue.

Nearly always, because they can, people begin to claim contaminated fuel.

If it was a solvent contamination the springs wouldn't be affected but the pump lubrication might. Solvent contamination is rare.

Particle contamination shouldn't be a problem IF the service people have replaced filters at a wise interval.

Drops of water also shouldn't be a problem as they should collect and be detected by the system.

The only item is Emulsified water in the fuel if entering the pump could cause microscopic pit and therefore fatigue points on the springs over time.

Not sure if Mazda filter IS/HAS a dewatering filter of just a filter.
additional dewatering filters are good to have.

So, apart from solvent contamination which apparently isn't there, and filters working properly, what contamination is MAZDA claiming is present????????

if it is anything apart from solvent, then the filter didn't do it's job. = warranty.


Has Mazda actually changed the fuel filter in the 42,000km? As you know, just because the item is marked religously in a service book, in no way means it HAS been changed.

Therein lies a problem. I can tick a box but I may not know where the filter is.

What has Bureau Veritas said? You haven't said. Mazda say this....BV say that and Shell say rubbish.

And Mazda refute the springs have shattered causing major internal damage...then what is the problem with the pump?

Sounds like, yes, a he said she said scenario looms. Good luck. I too would have made sure my insurance covered this scenario. And if, as you say, you have been in the game before, you will have known the risks and have known the necessity to cover yourself against them. The only people who win this sort of game are the legals.

Perhaps you should post on any Mazda related forums if you haven't already.

So if the manufacturer says its contaminated fuel, have you confronted the servo that you last used before the failure? Have you asked your insurance company if you are covered for contaminated fuel? It sounds like you are taking the hard way out! Go with the flow, do the above first. Michael

Hi Dave,
I wish you luck with Mazda. As a previous Mazda BT50 owner (2007 Freestyle), which unfortunately had numerous major faults that Mazda Australia (and the dealer) didn't wish to know about, I hope you have more success than I had.

Cheers, Geoff

Thanks guys, insurance didn't cover it, tried that first, Shell test their fuel everyday, we had 4 other vehicles fill up at same pump each second day, they had no problems, shell assure me that they would pay the claim if they were at fault, but stated no other vehicle around the day before and after fell crook from contamination.
its clear mazda use this term to avoid warranty,
bureau veritas states flat spotting and wear marks caused by first and second coils rubbing against each other, and being 20% harder than the industry standard for springs of this type as the reason for failure, they made no mention as to corrosion, rust or pitting caused from water at all on the parts and springs, and failure was due to spring hardness and design allowing rubbing of the coils upon each other, hopefully fair trading will take this serious to award the costs against Mazda under consumer law act 2011 and motor dealers act 1974, where by the goods were not of merchantable quality or durable for their intended purpose. heres hoping

I'm confused Dave. Is your insurance company paying for contaminated fuel damage or not and are you still pursuing Mazda? One wonders why they'd pay when the fuel company denies responsibility and your engineering report states mechanical failure.