Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Honda Jazz Mk4 2020 - => Topic started by: Nicksey on February 16, 2025, 12:40:36 PM
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Anyone else seeing a mould develop along the bottom edge of the windscreen, just under the glass?
After 8 months of ownership from new, I had to have the windscreen replaced due to delamination (our dealer had replaced 2 others for the same reason)... and now I am seeing mould 16 months later!
Always clean using Autoglym products, and quality screen wash products.
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My Crsstar too, 20800 miles. 3 years 4 months.
Will query with dealer.
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I have had this on a few of my cars since leaving them not garaged on the drive, it's easily removed with a toothbrush or similar dipped in washing up liquid
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I also have the same 16 months old will shift it in springtime
with a drop of vinegar.
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I have had this on a few of my cars since leaving them not garaged on the drive, it's easily removed with a toothbrush or similar dipped in washing up liquid
Not when it is behind the glass, as is this case.
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I also have the same 16 months old will shift it in springtime
with a drop of vinegar.
How do you get the vinegar behind the glass?
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I've had algae growth on window rubber of other cars. I think it may be algae rather than mould. Algae is more like green plant growth while mould is a fungus that can be more pernicious, creeping and causing damage .But both equally unwelcome, and potentially difficult to access for treatment. I think treatment methods would be the same for both but it might be worth checking further re the best treatment/prevention products.
I may be stating what is already obvious to you but looking very closely at the bottom edge of my windscreen there is a very narrow strip of rubber which abuts precisely against the glass edge/thickness . And exactly level with it. It does not overlap onto the outer surface of the glass but may extend up the inside surface a short distance. The area thats affected. In other words the glass rests on L section rubber rather than enclosed in U section. Probably intended to act as weather seal until it reaches the mastic/glue used to bond the screen to the car.
It seems water may have penetrated behind the L section of rubber allowing algae growth in what is now effectively a greenhouse.
It might just be possible to insert a very thin L shaped piece of metal bewteen the rubber seal and the affected inside of the glass in a way that the algae growth can be scraped off. Then it may be possible to introduce some sort of killer/prevention fluid ,being absorbed by the same capillary action that allowed water to penetrate in the first place. Or maybe try fluid without the scraping stage :-\ If it successfully kills the growth it may turn brown and not be so obvious. But it might not be possible, or cause damage or make things worse. >:( Rather you than me and at your own risk ???
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Windscreen replace and now mould on the inside sounds like the surround wasn't prepared properly
Who fitted the screen ?
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I have had this on a few of my cars since leaving them not garaged on the drive, it's easily removed with a toothbrush or similar dipped in washing up liquid
Not when it is behind the glass, as is this case.
Sorry, I got the impression from your post that the mould was outside the glass, it may be caused by condensation forming on the glass in winter and /or not using the aircon often enough, if you can access it same applies, toothbrush soapy water
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Windscreen replace and now mould on the inside sounds like the surround wasn't prepared properly
Who fitted the screen ?
Honda. It was replaced under warranty by my dealer.
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I have had this on a few of my cars since leaving them not garaged on the drive, it's easily removed with a toothbrush or similar dipped in washing up liquid
Not when it is behind the glass, as is this case.
Sorry, I got the impression from your post that the mould was outside the glass, it may be caused by condensation forming on the glass in winter and /or not using the aircon often enough, if you can access it same applies, toothbrush soapy water
I have used the air con throughout the winter, and have had very minimal condensation. There is no chance of accessing the area with a toothpick let alone a toothbrush, it is under the glass and there is no gap.
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I have had this on a few of my cars since leaving them not garaged on the drive, it's easily removed with a toothbrush or similar dipped in washing up liquid
Not when it is behind the glass, as is this case.
Sorry, I got the impression from your post that the mould was outside the glass, it may be caused by condensation forming on the glass in winter and /or not using the aircon often enough, if you can access it same applies, toothbrush soapy water
I have used the air con throughout the winter, and have had very minimal condensation. There is no chance of accessing the area with a toothpick let alone a toothbrush, it is under the glass and there is no gap.
Oh OK, just trying to help
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I'd be going back to the dealer that fitted it and ask them what they are going to do to fix it
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I'd be going back to the dealer that fitted it and ask them what they are going to do to fix it
Tomorrows first call.
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I also have the same 16 months old will shift it in springtime
with a drop of vinegar.
How do you get the vinegar behind the glass?
I am lucky then mines only on the outside, if I wipe my finger across
bottom of screen my finger will be green, strange thing is though if you imagine
standing at front of car its only occurring from centre of screen to three quarters
of way across screen to passenger side not to the end of screen and doesn't start
till centre of screen, I had insignia before jazz and that was the same but right along screen
and along all four doors at bottom of glass came off easy with some product made by autoglyn,
there are no trees or bushes where car is parked on my driveway.
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Update:
Called into my Honda dealer this morning. They looked, checked the records and because it was a replacement screen due to delamination and within warranty, they directed me to the company who replaced it.
Although the replacement is a genuine Honda screen, it was fitted by a local company, as my dealer doesn't carry out that type of work.
So, fortunately the company is only about a mile from my dealership. My dealer had phoned them, and told them I would bring it down for them to look at.
I took it to the screen company, and after they looked at it they responded with 'It is the weather, and we are seeing a few like this'. They said that the rubber seal along the bottom of the screen is actually supplied fitted to the screen by Honda at the factory, and they only clip the whole thing into the plastic trim. The only rubber seal they fit is along the sides and over the top. He said removing the screen, cleaning the algae would only be a temporary measure as it probably would come back. He said it would only be on the very edge of the underside lip, and would not extend further into the cabin. He said that as the weather warms up, and gets less damp the algae will die and probably be less conspicuous.
So, the upshot is that now it has been recorded, photographed and logged with my dealer and this company, I will wait and see if the mould spreads, or indeed does diminish in the warmer weather.
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It will definitely diminish in warmer months just like moss does on a
house roof or tarmac drive.
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I'm not so sure, once the spores are there, but I'm no expert
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I'm not so sure, once the spores are there, but I'm no expert
Your right it could flare up again next winter my drive does.
tried bleach on that and still comes back even if scraped off with garden hoe.
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Patio Magic is the stuff for driveways
I don't follow the instructions to rinse off. I just apply with a watering can and leave it. Takes a few days but does seem to turn green to grey quite effectively
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It will definitely diminish in warmer months just like moss does on a
house roof or tarmac drive.
So if heated with hairdryer it will disappear?
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I had a replacement winscreen early summer last year , small rock smacked into the screen , leaving a half inch crack . Over the next few days it grew . It was three weeks before autoglass had aquired the side trims , whatever they were , from honda . They had the screen in a few days and booked a fitting slot in the marque supermarket car park tent a week later , only to cancel as honda didnt send the trimsin time .This wasnt my local honda dealer but honda HQ . Eventually fitted and looked as new with perfectly fitting trims and seals. No mould showing as i have just has a look!! All you can see is the black part of the winscreen and the external rubber against the bodywork. I will keep an eye on it in future !
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It will definitely diminish in warmer months just like moss does on a
house roof or tarmac drive.
So if heated with hairdryer it will disappear?
No its the ultraviolet sunlight that kills the spores.
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Patio Magic is the stuff for driveways
I don't follow the instructions to rinse off. I just apply with a watering can and leave it. Takes a few days but does seem to turn green to grey quite effectively
Thanks will give it a go in springtime, was once told to mix some bicarbonate soda
but never got round to it, bleach once turned it brown but still came back after a couple of years.
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Will try uv light when it arrives from amzn
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Will try uv light when it arrives from amzn
That's ma boy.