Hi. My van came out again just after Christmas with a bit of a garbled diagnosis that the dealer was a bit cagey about. They claim the 3rd glow plug was faulty & replaced it, but it's had glow plugs replaced in the past during similar issues so I not holding much hope. I asked the dealer for the notes relating to my vehicles repair and I was told that they're private to the VW dealer and the customer is not allowed to have a copy ... initially I had been told the diagnosis was outside of my warranty due to an electrical issue but then they changed their mind and back tracked. It was all a but suspicious to me.
VW Customer Care 'Executive' Office have failed to reply to me raising a formal complaint about not being notified of the Adblue Software update recall & compensation of 8 x AdBlue refills. This is their 'Executive' level of customer care.
My personal opinion (right or wrong ...) based on 6 years of experiencing similar AdBlue fault issues is that the initial AdBlue system of the 1st EU6 engines is poorly designed with inherent problems and that VW really don't know what's going on. So they wash their hands of it and try to wear you down. They have done something to the flow or counter on my vehicle this time because previously when the AdBlue system was topped up, I'd get about 4500 miles reading but now when topped up it is only 3000 miles, so they changed something else apart from glowplug number 3, that I was not informed about.
Separately myself, I has started using this
Forte AdBlue Tank Exhaust Crystal Preventer - 150ml
as I am inclined to think the underlying problem is due to crystallisation of urea in the AdBlue system knackering it up. Got to be worth a go.
Also using Fortes other 2 products to clean the DPF and diesel system.
How are you getting on?