What causes the dreaded injector failure

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Originally Posted by g-black

Some say he has too much time on his hands, all we know is he's called martin1810 and here's what he has found.

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I prefer to think Martin is one of the most helpful forum guys
lorencpiotr Sorry to break your cover but this way already its a better conversation and helpful to all. Somebody who can repair injectors is most welcome if it saves us giving large amounts to VW

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Originally Posted by vince47

I prefer to think Martin is one of the most helpful forum guys
lorencpiotr Sorry to break your cover but this way already its a better conversation and helpful to all. Somebody who can repair injectors is most welcome if it saves us giving large amounts to VW

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Totally agree. Martin is defenetely very experienced VW specialist and his advices saved lots of time and cash to forum readers.
Full respect to his knowledge.

Is it possible for you to tell us which part of the injector fails and which parts you recondition. Also, how do you test the reconditioned injector.

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Originally Posted by martin1810

Is it possible for you to tell us which part of the injector fails and which parts you recondition. Also, how do you test the reconditioned injector.

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x2

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Originally Posted by martin1810

Is it possible for you to tell us which part of the injector fails and which parts you recondition. Also, how do you test the reconditioned injector.

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Hi Martin.
Thanks for a question and hope you will understand that I can't give you straight answer. Firstly, I'm not a technican. My job is retail. So that's not me personally repairing injectors. Our technicans don't want to be to detailed to describe what they doing. But they have got confidence to offer long warranty for their job.
Pete

I believe it's electronic burnout, and for that to happen would possibly be overworked component, which would point towards a blocked injector to start with, leading on to the burnout of the electronic's.

For me the safe option, which might not even be it, is to keep them clean with It tune up and cleaner fluid in the tank every 10k.

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Originally Posted by DSG4ME

I believe it's electronic burnout, and for that to happen would possibly be overworked component, which would point towards a blocked injector to start with, leading on to the burnout of the electronic's.

For me the safe option, which might not even be it, is to keep them clean with It tune up and cleaner fluid in the tank every 10k.

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X2. And at that price seems to be a great reason to keep the Sat :approve:

Just had No1 injector replaced on my 56 A4 170 tdi and keen to maximise lifetime of remaining two originals... Has anyone noticed a relationship between the oil change interval/ short vs long journey driving/ cold weather and the incidence of piezo injector failure? If it's oil ingress that's degrading the electrical insulation inside the injectors, could a buildup of fuel residues or water in the engine oil be a contributory factor?

the course ive just done at college showed me how to test peizo injectors with a scope, i was also shown how to test for one that is starting to break down, now right or wrongly i was told on this course that they dont just 'break' when you scope them you get a digital picture of what the injector is doing and from this you can tell how they are, it sounds very complicated but it really isnt, im in work tomorrow i will try and get a print out off on that good and one that is showing signs of failure

all i will say is i have only scoped good ones, but ive been shown results of a scoped one on deaths door that was saved before it packed up, we have at work a 2lt that is in for diag of the injectors, which will be my job tomorrow so i will see what the scope tells me

I've just joined teh failure club 2l 140 tdi on 55 plate garage say that best to replace the lom at £60 extra because oil could have got to it my injector has gone to earth so defo electrical fault so as from tomorrow will br £767 lighter in my bank acccount.

adrian