Every time I fill up my water bottle I try and do it a different way, putting more mixture in, more water in, just water in, but every time I use my washer I get a really bad stagnant smell? How can I solve this? Was the same in my last skoda to.

I know on my car that if I make the fluid concentrated that I usually get a waft of the screen wash through the air vent in certain situations.

Sure you haven't got a leak inside car, so when your squirting onto screen it isn't leaking inside car and eventually onto floor mats?

Is your car an estate as most are know to get leaking rear wash wiper, resulting in fluid into boot.

No the smell comes through the front air vents even worse when I have it blowing. And when I top it up the smell is very strong from the bottle.

There are a few previous threads on this, and what people did to cure/counter it.

Over time bacteria can build up in the washer bottle, and this is what you are smelling. Not sure How bad it can be, but I know the solution given in the previous thread's appear to have solved it.

drain it completely

 

fill it with a strong bleach mix and leave it for a day or two

 

then drain it and flush it through with clean water and fill it with the correct strength screenwash (i use proper vw stuff and have never had this issue)

I wouldn't use bleach. Empty out and fill with water. Then use washers to remove all the water. Do this twice then refill 60/40 job done

Sent from my Galaxy S5

i tried the empty water twice to cure the smell but had to resort to bleach/water mix and pumped through the washer jets before it killed the smell.  

Safest solution is Milton fluid a few tabs in warm water. Also flush before hand to remove any washer mix from the pipes and then also flush the Milton mix through all the jets n pipes.

Cleans the whole lot nicely. Do it a few times a year and bingo no bad smells, and clear pipes n jets

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