jackrenter
New member
blah. mines not that bad. just some extra drips afterwards, when under heavy acceleration.
maybe if i wait a while, theyll know about it better, and maybe be more competent at the fix.
6
Leaking Rear Window Washer Technical Analysis
- Thread starter harddrivin1le1
- Start date
blah. mines not that bad. just some extra drips afterwards, when under heavy acceleration.
maybe if i wait a while, theyll know about it better, and maybe be more competent at the fix.
Keithuk
Go Kart Champion
Maybe thats the problem in the UK we don't get hot days.
P
plac
Guest
i have yet to weigh in on this, but i did my own test a couple weeks ago. used my rear washer for the first time since new. for a few hours after that, it dripped a bit. After 3-4 hours, it did not drip anymore, and hasnt dripped in the last 2 weeks.
rubber_ducky
New member
ABD Racing
Ready to race!
aahhhh ok, i didnt see that. thanks for pointing it out, lol.
sfitalianguy
Passed Driver's Ed
this seems to answer the question I meant to ask.. "does this happen EVEN when NOT using the rear washer?" .. I must have used it only a couple of times in 3 months and haven't noticed any noticeable dripping. And I HAVE been paying attention, given how many ppl complain about here. And, mine definitely doesn't drip when not used..
I'll keep checking. My car is clean now so I won't test it.. but as soon as it's dirty I'll play with the rear washer to ensure it's ok.
harddrivin1le1
Ready to race!
I don't doubt you, but at the same time I have to question how that's possible.
They all use the same design and system, so I can't understand how some can drip (and sometimes "pee" all over) while others never do.
Without no check valve, they'd have to leak.
The check valve housing and nozzle should all be part of the same one piece, molded plastic part (with the internals being installed afterward). How VW managed to somehow overlook that while seemingly ignoring the commonality of the problem and a real solution continues to evade me.
It's such a simple issue...
Virtually every SUV and hatchback on the road have rear window washers.
My 2009 Toyota Yaris had one and in never once dripped so much as a single drop.
Yet, this thing "unloads" whenever it feels like it. It's insane...
P
plac
Guest
no. it hasnt happened since i used my rear washer a few weeks ago. the water must have seeped back.
sfitalianguy
Passed Driver's Ed
good to know, because really, this whole rear washer drama isn't happening to me (fingers crossed) YET. But yes, I haven't used the washer much in 3 months of ownership.
I also have the rear window wee problem. (this is also posted in another location on this site) After 3 trips to the dealer (first to diagnose the problem,,,,oh gee it does wee on the window, second to the TSB and valve install,,,,,still wees on window, and third back to dealer,,,,,oh gee it still wee and we don't know what to do now) it still wees.....but I found a solution (you see, I live in the desert....don't need no stinkin rear washer), a little soft plastic cap I found at my local ACE Hardware for about 50 cents (see photo). No more wee and if I do have to use it in the winter or somthin, I just pop it off. Now this solution won't work if your turbo craps out but hopefully the dealer can fix that.
harddrivin1le1
Ready to race!
Please post photo and, if possible, ACE part number.
Thing is, I need the rear washer because I live in the Northeast.
I honestly can't believe how utterly ridiculous this situation is...
EDIT - Thanks for photo.
Do you happen the have the ACE part number?
Can you believe how utterly ridiculous this situation is?
harddrivin1le1
Ready to race!
I think I know what's going on here...
In a half hearted attempt to solve this problem, VW fitted the stiffest check valve spring that would reliably actuate with the pressure the washer pump is capable of generating.
But line pressure (which I'm convinced is greatly effected by the surface temperature at the roof) can be greater than max pump pressure.
Hence, the check valve leaks.
In that the case the real "fix" would be to install a check valve with a "stiffer spring" (higher spring constant)...AND a new washer pump that's capable of generating higher line pressure.
They won't do that due to cost.
So we'll likely be seeing leaks for years to come.
I'm going to ACE tomorrow and buying your plastic cap tip - if I can find one.
Thanks for the tip (no pun intended).
~ Bob
In a half hearted attempt to solve this problem, VW fitted the stiffest check valve spring that would reliably actuate with the pressure the washer pump is capable of generating.
But line pressure (which I'm convinced is greatly effected by the surface temperature at the roof) can be greater than max pump pressure.
Hence, the check valve leaks.
In that the case the real "fix" would be to install a check valve with a "stiffer spring" (higher spring constant)...AND a new washer pump that's capable of generating higher line pressure.
They won't do that due to cost.
So we'll likely be seeing leaks for years to come.
I'm going to ACE tomorrow and buying your plastic cap tip - if I can find one.
Thanks for the tip (no pun intended).
~ Bob
