Petrol Pete
Hardcore MB Enthusiast
I hear you , it's just the first time I ever heard of this phenomena was here on this MB forum and it is obviously real and may be a subject on Audi/BMW/Zastava forums worldwide for all I know , but it has never happened to me. What has occurred to me is that I have (and still do) use(d) screen wash from just about every manufacturer and bargain basement shop known to man but NOT from Mercedes Benz.My previous MB was squirting jelly after mixing up a number of different brands.
Maybe the stuff they sell is designed to 'jell up' with other brands thereby making people think they must only use the MB stuff .