Clubjazz - Honda Jazz & HR-V Forums
Honda Jazz Forums => Honda Jazz Mk3 2015 - 2020 => Topic started by: trevflstn on November 18, 2018, 10:55:51 PM
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Hi
I have a 2018 Mk3 EX (my second Jazz). Love everything about it except that on occasions at this time of year I get a huge amount of condensation on the inside of the windscreen, almost like raining inside with drops of water falling of the screen.
Had this on my previous Jazz but this one seems even worse. Takes ages to clear using the heater, fan and ac. If the car was older I would suspect the pollen filter but not in a 6 month old car.
Any advice / suggestions would be gratefully received.
Thanks in advance
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The only thing I can imagine is that either your aircon isn't actually working correctly or it is set at the wrong settings for the conditions.
If you are in the UK at this time of the year, your aircon is switched on, ventilation set to fresh air, not recirculating and the air is blowing onto the windscreen and the heat set to warm or hot then it should clear the screen after a couple of minutes at most, if you have had this problem on a previous car as well it probably isn't the car malfunctioning but something to do with the settings, if in doubt ask at the dealers for a demonstration of how to use the air con to it's best advantage, if it's not working properly they will be able to tell you and arrange repair.
Hope this helps, good luck
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The second question is, where’s the water coming from ? There shouldn’t be that much water inside the car. Are any of the carpets, or the spare wheel well, wet ? If so that might indicate a leak that lets rainwater in, maybe a door seal.
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My guess is the Air Recirculation is not set to outside air. Do you have someone who keeps setting it to that?
We call it the 'Anti-smell button' and only ever engage it when we are passing the local sewerage works or in the vicinity of poorly serviced vehicles chucking out clouds of exhaust fumes. Otherwise, it is always on the fresh air setting.
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Beat me to it, my first thought was the air recirculation set to "on". This can make a huge difference in cool damp weather.
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Almost all(*) Honda's I've owned (and I've owned over half a dozen) have had problems with ventilation. Not as extreme as the OP describes but it's an area where I feel Honda are weak. In the case of the Jazz I find that during winter I have to drive around with the ventilation set to 'windscreen and feet' to prevent the screen from misting up. That was problematic with my Mk2 because after an hour it would suddenly switch to pumping cold air out. Thankfully the Mk3 doesn't have that problem.
But considering I have climate control and that the CC is clearly designed to address the issue I've still unimpressed. I mean on a cold evening it will automatically direct the vents to the screen, which shows Honda have thought about it. Unfortunately it only does it for about a minute which is pathetic.
(*)My first Honda, a Mk6 Civic was fine but then that was designed in conjunction with Rover.
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Even with air set to recirc if the aircon is working it should still be able to clear the windows as the system will be dealing with rapidly drying air inside the car and will not be dealing with fresh damp air from outside the car. Just like the quickest way to cool the car in summer is to select aircon + recirc - in fact if you select 'quick clear' button or in the summer select a cold temperature on 'auto climate control' the system will automatically select recirc, this means the car can concentrate on cooling a smaller amount of air rather than continually sucking in hat air from outside vehicle. Downside of having recirc on for a long time is that air inside car can start to get a bit stale.
Prodding the 'quick clear' button is a good way to check if aircon is OK as it automatically turns on aircon, directs air to screen and ramps up the fan speed.
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None of the Jazz I've owned have been able to keep the windscreen clear in winter even with outside air coming in. By contrast the Nissan Sunnies and Almera I owned could be driven everywhere on recirc with nothing but a slight misting on the rear passenger quarter panels.
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I don't know if I have been lucky with my multitude of cars but I have only once had a mist up. A Focus on a hot damp day Aircon on but the recirc also inadvertently on. I always run with Aircon on and rcirc off with the temperature set to comfortable and don't have a problem.
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I don't know if I have been lucky with my multitude of cars but I have only once had a mist up. A Focus on a hot damp day Aircon on but the recirc also inadvertently on. I always run with Aircon on and rcirc off with the temperature set to comfortable and don't have a problem.
Yeah it's odd. Maybe location? I driven around with my Dad and his partner in his Citroen C3 and we never had a problem, so I don't think I'm unusually 'moist'. But a twenty minute commute with the climate control set to Auto at this time of year will see the windscreen and windows starting to mist up.
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I will agree that most of the Hondas I have had have been a bit slow to clear even with the aircon on and the screen setting. A quick blast of the screen only setting often helps.
Day to day not too much of a problem - at this time of year I leave the aircon on all the time and that keeps the car reasonably dry.
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I don't know if I have been lucky with my multitude of cars but I have only once had a mist up. A Focus on a hot damp day Aircon on but the recirc also inadvertently on. I always run with Aircon on and rcirc off with the temperature set to comfortable and don't have a problem.
Yeah it's odd. Maybe location? I driven around with my Dad and his partner in his Citroen C3 and we never had a problem, so I don't think I'm unusually 'moist'. But a twenty minute commute with the climate control set to Auto at this time of year will see the windscreen and windows starting to mist up.
Are the ventilation holes in the boot clear?
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I am on my fifth Jazz and have never had a demisting problem with any of them. I don't use the climate control in the winter however as I don't like the way it distributes the air or the fan speed it selects. I set it manually to screen and feet and control the temperature.
Having recirculate selected in the winter will definitely cause misting problems as the humidity in the car is higher than summer months, caused by damp clothes and damp passengers.
As has been said the ventilation exhaust holes in the boot must be kept clear to allow a through flow of air. They are at the back of the boot in the door sill where the boot lock catch is.
Vic.
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I don't know if I have been lucky with my multitude of cars but I have only once had a mist up. A Focus on a hot damp day Aircon on but the recirc also inadvertently on. I always run with Aircon on and rcirc off with the temperature set to comfortable and don't have a problem.
Yeah it's odd. Maybe location? I driven around with my Dad and his partner in his Citroen C3 and we never had a problem, so I don't think I'm unusually 'moist'. But a twenty minute commute with the climate control set to Auto at this time of year will see the windscreen and windows starting to mist up.
Are the ventilation holes in the boot clear?
Hmmm. Sorta. I keep my golf gear in there though so it's pretty full of stuff.
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Thanks for the many replies and suggestions. A couple I have tried but several I have not. I do on occasions have wet dogs in the car which doesn't help but the condensation can literally be rivers running down the inside of the screen.
As far as I know all vents are clear and the AC is working so it is probably something I am doing wrong.
I'll give the suggested options a go and see how we get on
Thanks again
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Thanks for the many replies and suggestions. A couple I have tried but several I have not. I do on occasions have wet dogs in the car which doesn't help but the condensation can literally be rivers running down the inside of the screen.
That doesn't sound like anything you're doing wrong. You're not being visited by the girl from Dark Water (https://en.wikipedia.org/wiki/Dark_Water_(2002_film)) are you :o ?
More seriously it's sounds very odd. All I get is a bit of misting.
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As the car appears to still under the three years manufacturer's warranty, I would seek help from a Honda dealer. Get them to check all the settings, inspect the heating and ventilation system and check for dampness in the car and potential interior water leaks.
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I agree a Honda check may help but condensation is caused by wet air in the car. Ventilation with fresh air and heat usually fixes it, be it house or car. One thing you could try to get it dried out is a mains powered fan heater if you have power supply near the car. I think ventilation (recirc off) and lots of fan speed with aircon is the key.
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The only time we have had damp on side windows in a Jazz was when my wife had water in the boot of her MK1 - I don't think that is you problem in a MK3 ??
Are you sure your aircon is working because even when the air is set to recirculate the air still passes over the cold condenser and will take moisture out of the airstream before putting it back into the car. The air in winter is normally drier than summer air ( warm air can contain more moisture than cold air) but because the windows are cold they tend to collect any moisture in the same way the aircon condenser does.