Headlamp Washers

[SMILEMAN]

Anyone else had headlamp washers not retracting fully after use, mines started doing exactly that after use, wondering if something just needs a clean or replacement parts are needed.
Haven't had the time to investigate properly yet, just a gentle shove and it returns home as it should.

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[Elansear]

Hi. Looks like my TT a water pressure driven system, so perhaps a relief valve sticking. This may assist
headlight washer system Audi A6/Avant (A6) 2016 year Audi EUROPA 955030

[Crasher]

The Audi line on this is people not using a quality approved screen wash causes the pistons to stick on retraction. These are £75.55 and mean removing the bumper, I know some people take them apart and try to clean them but we have to know what we do will work faultlessly as if we spent 2 hours doing it and we failed, we have blown the cost of the new parts which have an Audi 2 year warranty coving parts and labour.

[SMILEMAN]

I am under warranty till August, wonder if they will argue the toss and try and come out with the non approved fluid line.
I will try next week.

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[Tripletrouble]

Do we have a list of "approved" screenwash? Personally I've never heard such BS as "approved screenwash", it's just blame shifting by Audi to try and worm out of replacing a faulty part.

[Crasher]

It is an official TPI but I can’t dig it out from my iPad at home.