Not to mention, the dealership was absolutely useless in suggesting alternatives. Here in Canada, our options are limited to begin with. Obviously I would like to avoid this happening again, so have been looking to specifically find brands that surely do NOT contain any kind of silicon/silicon additives. Which was why it was quite shocking when this happened in my X3. I personally had been using Rain-X for years in multiple different past vehicles (Audi, Ford, Subaru) and have never had issues. Great write-up and thanks for the research. Would be interesting to see how many forum members had washer failures while using genuine BMW fluid. Any other time with the blue stuff, generic or BMW, the repair was done under warranty and the customer would less likely go on the forums and complain about it. Then again it could all just be a coincidence but because the stuff was orange, BMW can point the finger and say it was due to that. Since a lot of people were having issues with the rainx stuff, they possibly had contaminated water or water that had a high TDS. My guess is that since bmw sells concentrated wash and expects that some people will use tap water, they add extra stuff in there to prevent mineral build up from hard water. Both types are mostly methyl alchohol but some contain detergents and fragrance. The genuine BMW stuff can be had with or without antifreeze. This stuff does have some silicone in it but in very low concentrations. There are some windshield washer fluids out there that have antifreeze, the yellow Prestone windshield deicer coming to mind. Their green bug remover wash does have some silicone however. Only difference is that the deicer stuff has a higher concentration. Thanks for making me go down the Google rabbit hole on this one.īeen using the orange rainx deicer and all season windshield wash for years in all my cars, including the M3 and X3.
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