Mazda saying this is normal...

Mazda saying this is normal...

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E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 25th November 2023
quotequote all
So my mum has a CX30, she has had it from new. Even when new, when cold, there can be considerable condensation on the inside of the windscreen. I've seen it before, it certainly isn't normal in my opinion, and there can be numerous drops of water on the dash.

I asked her to film/photograph it to show, and she sent me this

https://drive.google.com/file/d/1iU_utl7lI4cRTT2I7...

I've suggested contacting Mazda head office, as I really don't think that is normal!

Anyone else found anything similar with that model?

Thanks.

E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 25th November 2023
quotequote all
wyson said:
Not a Mazda, but the only time I had internal condensation like that in a Golf was when the drains were blocked. Could hear sloshing noises in the body somewhere as the car moved around. Once they were rodded through, draining all the water out, it reduced significantly.

Could try treating the inside with rainx or similar to try and alleviate it too.
Considering the car did this from new I'd be surprised if it was blocked drains? I'll definitely suggest something like Rain-X, thanks smile

E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 25th November 2023
quotequote all
595Heaven said:
Not normal!

You can get some condensation from the air con which would clear very quickly but I suspect she has a leak into the cabin. I’d take the mats out and put some kitchen roll on the carpet overnight and see if it is damp in the morning
It is only the windscreen, not the side or rear windows, I'd have thought if it was moisture coming in via the floor that it'd effect the other windows too? It's a good suggestion though.

E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 25th November 2023
quotequote all
Bill said:
Does she routinely leave the AC off?? It's not just for cooling as it'll dry the air too.
Yeah, I've suggested the following for now:

Ensure AC set to automatic RE air distribution.
Ensure AC set to automatic RE recirculate/fresh air.
Thoroughly clean internal windows with alcohol based cleaner.

She's also going to remove mats this evening and put kitchen paper on the carpets.

Cheers smile

Edited by E90_M3Ross on Saturday 25th November 18:20

E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 25th November 2023
quotequote all
Olivera said:
This is why sane people run aircon all year round. If you do, this doesn't even exist as a problem.
I'm not convinced it's that, she's 100 miles away so I can't check her settings, but she's never had this in any previous car and I assume her AC settings are similar.

E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 25th November 2023
quotequote all
595Heaven said:
Worth getting one of those dehumidifier bags that you can microwave once damp. Can’t remember the brand I’ve used but they really helped to keep my SLK55 condensation free
Good idea smile

E90_M3Ross

Original Poster:

35,175 posts

214 months

Sunday 26th November 2023
quotequote all
So I've just confirmed via video call that her settings are as follows:

Temp - left 18deg, right 22deg
Fresh air intake (ie recirculation off
Fan speed auto

Here's another photo of this morning. It's only at the base of the windscreen. Thoughts??



This photo was actually taken in October 2022....when the car was almost brand new - you can see where the blower has pushed the water droplets up.



Thoughts?

E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 2nd December 2023
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CobolMan said:
My CX30 doesn't do that and it's a similar age to your mum's car. That is not normal and I would be going back to Mazda about it.
Thanks. We contacted Mazda UK who asked for the VIN, which was provided the next day. 3 days later and not heard anything back....Will chase up on Monday. It'll be interesting to see what they say/do!

E90_M3Ross

Original Poster:

35,175 posts

214 months

Saturday 2nd December 2023
quotequote all
Trevor555 said:
E90_M3Ross said:
So my mum has a CX30, she has had it from new. Even when new, when cold, there can be considerable condensation on the inside of the windscreen. I've seen it before, it certainly isn't normal in my opinion, and there can be numerous drops of water on the dash.

.
I wonder if the recirc button on the heater panel is actually working?

Had one car that did similar, stuck on recirc.
Well the digital icon on the instrument panel in the centre console changes when you press it, so I assume it's working.

The windscreen does clear, but it takes forever as you can imagine with that amount of water on the inside!