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I Just recently had my 2010 Touareg TDI serviced, a couple of weeks later the ad blue light comes on with 450 mile count down, this was strange and i figured that the VW dealer didn't top off my ad blue during its service. I returned the car to the dealer, after further inspection they said the ad blue was full, but there was a bigger issue where there was crystallization throughout the ad blue system. The dealer advised that the entire ad blue system need to be replaced at a cost of 4k. This came as a shock to me. Their reason was that the the ad blue was contaminated and caused the crystallization. The car has had its last 2 services at this dealer and i find it hard to believe that this wasn't picked up earlier, the car was also second hand, but its prior service history had been with a VW dealer. They tried to cover it with my fidelity insurance, but fidelity claimed that contaminated fluid inst part of normal wear and tear and declined the claim. So now i want to push pack on Fidelity to try and have them cover the claim otherwise its off to VWOA to get a resolution. If anyone has experienced something similar or has any knowledge to the following questions it would be greatly appreciated:
1: I thought all Ad Blue was just ammonia and water, how would one ad blue fluid to another cause contamination?
2: Is there away of cleaning the crystallization from the ad blue system with out replacing it?
3: If i never got a warning light that the DEF/Ad Blue was contaminated, isn't that malfunction of the car itself and therefore be covered by the fidelity warranty?
4: Is 4k a reasonable cost to replace the ad blue or are they trying to take advantage?
Thanks
RMcgarrity78
1: I thought all Ad Blue was just ammonia and water, how would one ad blue fluid to another cause contamination?
2: Is there away of cleaning the crystallization from the ad blue system with out replacing it?
3: If i never got a warning light that the DEF/Ad Blue was contaminated, isn't that malfunction of the car itself and therefore be covered by the fidelity warranty?
4: Is 4k a reasonable cost to replace the ad blue or are they trying to take advantage?
Thanks
RMcgarrity78