Steamy rear windows?

[Vigman]

Hi

I cannot clear the condensation from the rear passenger windows on my 2007 Jazz automatic.

I’ve tried all the heat settings, fan settings even ‘through’ and ‘recirculate’ on aircon but on a wet day they both completely steam up.

I’ve never had this in any other car.

Is this a known problem or can anyone please advise how to keep them clear?

TIA

Vigman

[culzean]

Hi

I cannot clear the condensation from the rear passenger windows on my 2007 Jazz automatic.

I’ve tried all the heat settings, fan settings even ‘through’ and ‘recirculate’ on aircon but on a wet day they both completely steam up.

I’ve never had this in any other car.

Is this a known problem or can anyone please advise how to keep them clear?

TIA

Vigman

You may well have water in the wheel-well of the boot ( or maybe rear of passenger cabin ), caused by leaking roof strip sealant.  Otherwise when did you last replace cabin air-filter ( behind glovebox,  and is your aircon working.

[Vigman]

Thanks. I did change the cabin filter a while back after the front windscreen was misted on first getting into the car. This hasn’t happened again.

I also changed the aircon condenser not long ago.

I’ll check the wheel well and rear passenger area and report back.

The car starts off with clear windows but the two passenger ones mist up after 5 minutes on a wet day.

[culzean]

There are some vents in rear of boot that let cabin air exhaust out behind the bumper moulding - check these are not blocked. 

Also this thread..

https://clubjazz.org/forum/index.php?topic=10892.0

The original poster in above link had the sunroof drain drain tube broken or disturbed by someone working on the car and instead of taking water down to rear of front wheel arch it was putting water into the passenger footwell.

There have been cases with older cars where the mud thrown up by front wheels and also drainage from scuttle vents plenum can get trapped behind the plastic covers at rear bottom of front wheel arches ( where the mudflaps can be fitted ),  they can be removed by taking screws out and the space behind them cleaned. 

[VicW]

The aircon will not work below outside temperatures of about 4C, this is to protect the evaporator ( the heat exchanger behind the dashboard). Check where you are directing the conditioned air, I suggest pointing the side ones towards the sides of the car so that the air goes over the rear door windows.

Vic.

[embee]

Two tips I've picked up.

Double check the air lever is on fresh rather than recirculate, it will always mist up after a few minutes on recirc. if the weather is cool/damp.
When leaving the car after a run, either open the windows for the last few hundred yards or once parked open all the doors and tailgate for 10sec or so to let all the warm humid air out and cold ambient air in. This will reduce the amount of moisture trapped inside the car substantially and avoid the upholstery/carpets etc getting moisture in it.

[Kremmen]

I wonder if a cheap humidity meter on maybe the passenger seat would give any possible excess moisture clues?

[mj1sjc]

This must be definitely to do with rain water collection onnthe spare wheel bin under the boot.
I had the same and thanks to someone on here I removed the two black plastic rims whats on the roof, used a special sealant ( think its called CT1) but very carefully as this sealant can get messy. Then my issue was sorted.
There's a video somewhere on this site how to do it. Good luck!

[culzean]

If it is a WWW ( watery wheel well ) here are a couple of threads

https://clubjazz.org/forum/index.php?topic=3271.0

https://clubjazz.org/forum/index.php?topic=10007.0

http://clubjazz.org/forum/index.php?topic=245.0

[mj1sjc]

Yes, this is what ive followed

http://www.beardmorebros.co.uk/website%20pages/jazz_leak.html

If it is a WWW ( watery wheel well ) here are a couple of threads

https://clubjazz.org/forum/index.php?topic=3271.0

https://clubjazz.org/forum/index.php?topic=10007.0

http://clubjazz.org/forum/index.php?topic=245.0

[gtd2000]

Steamy rear windows?

Step this way sir 

[Al]

I saw a Youtube video where someone tried wiping his car windows with 4 or 5 different materials to compare with an expensive anti-misting product and the result indicated that shaving foam was as good as any, so I had a trip to Poundland and bought a £1 canister of Gillette foam, wiped it on a section of the rear window (horizontally in order to be kind to the rear screen heater element) and it is definitely better on the treated section than the rest so I'm going to try it on the remainder of the window. This should work for other windows too.

When I bought the car the spare wheel well was a pond so I dried it out, lifted the black plastic strips along both sides of the the roof and, using a cartridge gun, ran some Lidl/Aldi clear silicon sealant along the joins. 12 months later the wheel well is still dry, even though the car is kept outside 24/7.