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Washer tank cap will not seal

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Elmo
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Washer tank cap will not seal

Post by Elmo » Wed Sep 08, 2021 10:16 pm

My windshield wash fluid cap will not stay pressed onto the tank lip. Going to order a new cap but expect to find it is an issue with the resevoir bottle Anyone else had this problem and found a simple solution?

2004 BMW Z4

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Mr Tidy
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Washer tank cap will not seal

Post by Mr Tidy » Wed Sep 08, 2021 10:45 pm

It may be a totally different problem, but when I got my E46 3 Series the screen washers hardly worked. I kept trying them and when I opened the bonnet I found the cap on the reservoir had popped open!

Anyway it was the usual BMW problem of algae on the pump filter so once I had got rid of that the washers worked fine and the cap stayed on.
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