Standing water in front passenger footwell - Mk9 6C 1L Polo Match
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Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Hello all, I would like some advice and guidance around why the heck I have a very damp front passenger footwell.
I'm a driving instructor, so the car has been sitting on my drive on-and-off for the past year, and very recently only going on the occasional very short journey to 'keep her ticking over'.
I've always noticed a musty smell in the car after long periods of inactivity but never really thought about it too much... until yesterday, when I noticed the mats were looking mouldy!
I've already searched these forums and other websites for the answer to my prayers, however I can't quite work out what my specific issue could be.
There hasn't been anyone sitting in the front passenger seat for a couple of months now.
I DO NOT have a sunroof.
I've attached a few photos of what I can see, as far as I can go.
You can see the dark areas of the materials when the water/dampness is most promenent.
Can anyone please shed any light on the situation?
(let me know if more info is needed)
Mk9 6C 1L Polo Match
I'm a driving instructor, so the car has been sitting on my drive on-and-off for the past year, and very recently only going on the occasional very short journey to 'keep her ticking over'.
I've always noticed a musty smell in the car after long periods of inactivity but never really thought about it too much... until yesterday, when I noticed the mats were looking mouldy!
I've already searched these forums and other websites for the answer to my prayers, however I can't quite work out what my specific issue could be.
There hasn't been anyone sitting in the front passenger seat for a couple of months now.
I DO NOT have a sunroof.
I've attached a few photos of what I can see, as far as I can go.
You can see the dark areas of the materials when the water/dampness is most promenent.
Can anyone please shed any light on the situation?
(let me know if more info is needed)
Mk9 6C 1L Polo Match
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Has your car been parked close to trees, bushes or a hedge, if so maybe dead foliage has got into the area in front of the windscreen and blocked the drainage points so water is getting in via the cabin heater inlet.
Or, has the windscreen ever been replaced and so not sealed properly.
Or has there been any crash damage repair on that side and panel seam sealer not been done correctly.
Or a defective door opening seal.
Or the door's internal sealing, ie from the door frame to the inner panel/window regulator assembly is leaking so water is entering the door and instead of leaving via the lower drain point is filling up the door's internal space and leaking out into the car.
Or even the door's lower drain point is blocked, logically there must be some though I've never noticed them or remembered noticing them.
Edit:- tip, remove the cabin pollen filter and check if it is dry or wet and if there are any traces of water having been in the cabin heater filter area. Always remember while the water has been initially found in the front passenger seat floor area, if the car is parked on a slope, the points of entry for this water could be elsewhere.
This leakage has not been caused by badly fitted driving school duplicate pedals?
Or, has the windscreen ever been replaced and so not sealed properly.
Or has there been any crash damage repair on that side and panel seam sealer not been done correctly.
Or a defective door opening seal.
Or the door's internal sealing, ie from the door frame to the inner panel/window regulator assembly is leaking so water is entering the door and instead of leaving via the lower drain point is filling up the door's internal space and leaking out into the car.
Or even the door's lower drain point is blocked, logically there must be some though I've never noticed them or remembered noticing them.
Edit:- tip, remove the cabin pollen filter and check if it is dry or wet and if there are any traces of water having been in the cabin heater filter area. Always remember while the water has been initially found in the front passenger seat floor area, if the car is parked on a slope, the points of entry for this water could be elsewhere.
This leakage has not been caused by badly fitted driving school duplicate pedals?
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Thanks for the advice - I’ll work down your list, asap tomorrow.
Also, I’ll try to find out what some of the car parts and car terms you’ve mentioned are, without asking straightaway - but I might come back to you with a few questions.
(Disclaimer: I’m certainly no Mechanic, but more than happy to try)
Thanks again
Also, I’ll try to find out what some of the car parts and car terms you’ve mentioned are, without asking straightaway - but I might come back to you with a few questions.
(Disclaimer: I’m certainly no Mechanic, but more than happy to try)
Thanks again
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Did you have water ingress before having the duals fitted? Might be worth checking that while fitting you didn't gain any new holes that aren't supposed to be there!
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
RUM4MO wrote: ↑Fri Feb 19, 2021 7:31 pm Has your car been parked close to trees, bushes or a hedge, if so maybe dead foliage has got into the area in front of the windscreen and blocked the drainage points so water is getting in via the cabin heater inlet.
= no, not a tree or hedge in sight
Or, has the windscreen ever been replaced and so not sealed properly.
= not to my knowledge
Or has there been any crash damage repair on that side and panel seam sealer not been done correctly.
= not to my knowledge
Or a defective door opening seal.
= I’ve had a good look at all of the seals and they all look fine: none missing, squashed, perished, etc.
Or the door's internal sealing, ie from the door frame to the inner panel/window regulator assembly is leaking so water is entering the door and instead of leaving via the lower drain point is filling up the door's internal space and leaking out into the car.
= no dampness or signs of water near the door
Or even the door's lower drain point is blocked, logically there must be some though I've never noticed them or remembered noticing them.
= found the drain point, it’s clear
Edit:- tip, remove the cabin pollen filter and check if it is dry or wet and if there are any traces of water having been in the cabin heater filter area. Always remember while the water has been initially found in the front passenger seat floor area, if the car is parked on a slope, the points of entry for this water could be elsewhere.
= filter is bone dry, no signs of water. Not parked on a slope.
This leakage has not been caused by badly fitted driving school duplicate pedals?
= I don’t think so, all looks ‘proper’. Only 1 extra hole was needed to be drilled for a bolt to fit the dual controls - and more photos attached to show this extra bolt (from the footwell perspective and also the engine bay perspective)
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Thanks also for the reply.
I had the duals fitted a week after I bought the car, so impossible to tell... but I don’t think it’s related to this
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
It’s been mentioned to me that it might have something to do with the heater matrix/pipes, as I think my coolant is lower than it should be...
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
I would expect that the coolant in this car is pinkish in colour, some might say purpleish, so if you mop some up using a white paper towel etc, what is collected on the white paper towel should turn that white paper towel pinkish or purpleish if it is coolant.
How much coolant did it take to bring the coolant level back up to between MIN and MAX when the engine is cold, ideally buy some G13 spec coolant only to add back in.
How much coolant did it take to bring the coolant level back up to between MIN and MAX when the engine is cold, ideally buy some G13 spec coolant only to add back in.
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Good idea... just did that, the piece of white kitchen roll is still perfectly white.RUM4MO wrote: ↑Sat Feb 20, 2021 2:29 pm I would expect that the coolant in this car is pinkish in colour, some might say purpleish, so if you mop some up using a white paper towel etc, what is collected on the white paper towel should turn that white paper towel pinkish or purpleish if it is coolant.
How much coolant did it take to bring the coolant level back up to between MIN and MAX when the engine is cold, ideally buy some G13 spec coolant only to add back in.
(the coolant still worries me - maybe a separate issue)
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
I’ve experienced this on a non VW that had dual controls fitted.
After much standing on my head and head scratching I discovered that the drain pipe from the air con had been displaced during the work and was venting into the footwell rather than under the car.
After much standing on my head and head scratching I discovered that the drain pipe from the air con had been displaced during the work and was venting into the footwell rather than under the car.
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Thank you, definitely worth investigationRicmondo wrote: ↑Sat Feb 20, 2021 3:33 pm I’ve experienced this on a non VW that had dual controls fitted.
After much standing on my head and head scratching I discovered that the drain pipe from the air con had been displaced during the work and was venting into the footwell rather than under the car.
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
I just got the hose on the front passenger window and also on the passenger side of the windscreen, and water did trickle through... at this point in the footwell (see photos).
Which leads me to believe it’s a blocked drain / rubber bung - after reading other posts and speaking with someone that’s a lot more experienced than me.
Next, attempting to take off wipers and plastic trim
Which leads me to believe it’s a blocked drain / rubber bung - after reading other posts and speaking with someone that’s a lot more experienced than me.
Next, attempting to take off wipers and plastic trim
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Just in case anyone else is following this thread...
... I’ve had it looked at by a garage and they are baffled as to how it’s getting in. Without taking the dashboard out and the engine out - to get a much closer look at the bulkhead - they won’t be able to find out. Safe to say, as a Driving Instructor, I don’t have the time to do this unfortunately.
The mechanic’s best guess is that there’s a gap/split/defect in the bulkhead sealant somewhere, possibly in the wheel arch - as he’s noticed it’s had a wing replacement at some point, which might have moved the joins slightly.
Thanks to all who offered their advice
... I’ve had it looked at by a garage and they are baffled as to how it’s getting in. Without taking the dashboard out and the engine out - to get a much closer look at the bulkhead - they won’t be able to find out. Safe to say, as a Driving Instructor, I don’t have the time to do this unfortunately.
The mechanic’s best guess is that there’s a gap/split/defect in the bulkhead sealant somewhere, possibly in the wheel arch - as he’s noticed it’s had a wing replacement at some point, which might have moved the joins slightly.
Thanks to all who offered their advice
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
One thing thing that may be worth a go is use a cheapo borescope to get in behind the panel. Cheapo ones that you plug into your phone can be had for under £20. Stand alone around £40. Doesn't necessarily mean you will be able to get at it of fix it. But at least you might spot where it's sneaking in.
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Re: Standing water in front passenger footwell - Mk9 6C 1L Polo Match
Coolant would smell sugary/ sweet