1.6 TDI VDO Injector failure root cause analysis

[nathanjones916]

Ye thats great, that was what I was hoping to hear. Think will just have to go for it and hope for the best, at least with buying new get 2 years guarantee with them.

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[BenT]

Another day another dud injector for me... This time going down an incline at 50 mph with only slight accelerator pressure. It lost power and stuttered for a few seconds before the glow plug light started flashing. It's the #2 injector, which I replaced with an 03L130277S 2 years (17,000 miles) ago. The injector was second hand, but only 2 years old from the date stamp at the time I bought it so I assume it's managed less than 40 k miles overall. Pants.

Anyway, when I have time I'll hack it apart to try to see what the difference is between this and the B variant. This might give a clue as to the failure cause. Not that it really matters... As a final hack, I'm going to try unscrewing the piezo actuator in-situ and replacing just that, without removing the whole injector, Just to see if it's possible. This would make it a far easier road-side fix.

Meanwhile, my #1 injector's on 165,000 miles now and still going strong. How is this possible?

[Simon46]

Done all 4 with brand new S type no problems for years now

[Vanmandan]

Friday injector 3 went on me, AA recovered and replaced for £802 using genuine parts. From what the mechanic said the AA parts and garage cover will cover up to £500 of the repair. This seems to be the be option for the issue

[Doc]

Was it electrical or mechanical failure?

[ransomz0]

Number 3 went yesterday. Luckily I was only 5 minutes from home so was able to nip home and replace it.

Does anyone recommend reconditioned units and a place to buy from?

Thanks

[BenT]

I was reading a research paper the other day that suggested the piezo stacks on these injectors could be regenerated; I don't know how "reconditioned" injectors are actually reconditioned though.

It might be worth just keeping an eye out for second hand injectors with a recent production date stamp - sometimes these can be had quite cheaply.

[Bahnstormer]

Number 3 went yesterday. Luckily I was only 5 minutes from home so was able to nip home and replace it.

Does anyone recommend reconditioned units and a place to buy from?

Thanks

Recon injectors aren't worth the time or money, you'll just end up replacing them again 6 months later.

Buy new from PF Jones, they're much MUCH cheaper than VW but are the exact same product https://www.pfjones.co.uk/volkswagen-ca ... 40080.html.

[ransomz0]

Thanks for the feedback. Do you know if the Continental branded parts are identical to the Siemens ones i e.. is it the same production line?

[Bahnstormer]

Yeah, I'd imagine so, Continental own Siemens VDO.

[ransomz0]

Well, a couple of days after injector 3 going number 1 followed suit. I have now gone through 6 injectors over the last three years and haven't covered much over 10k miles.

Enough is enough and I've got rid of the pile of sh1t today....

[BenT]

Sorry to hear about that... were the failed injectors reconditioned, second hand or new when they were fitted to your van? Not that it's your problem any more!

[ransomz0]

Always new Continental, Siemens VDO or VW

[eva69]

Can I ask if you replaced any ‘incase’ they went after the first two needed replaced?
Is this something worth doing after two of mine have gone within 6 months on the same model as yours.

[ransomz0]

No always replaced as required. I've sold it now due to the ongoing expense and extreme inconvenience