Hey guys,
In the past few days, my car has strangely been steaming up when standing in traffic... no idea why but I would like to check whether the heater matrix is leaking. Prior to mist-up, I can smell humidity in the air so some steam is coming from somewhere. Could be a knackered air con as well, I guess?
Is the heater matrix somewhere behind the glovebox? I had it out a few years ago but didn't see it there. Is it concealed behind something?
Cheers
CJ
Where's the heater matrix?
Moderator: Moderators
- Captain Jack
- 3.0 24v
- Posts: 3820
- Joined: Sun Aug 07, 2005 11:26 am
- Location: Langford, Somerset
Where's the heater matrix?
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp
)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp

2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
- steve_earwig
- Moderator
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Re: Where's the heater matrix?
It's behind the centre console. I think it was Gary doing the hokey-cokey with his one a while back so have a search of his posts...
Are you loosing coolant?
Are you loosing coolant?
Unskilled meddling sin©e 2007
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- Captain Jack
- 3.0 24v
- Posts: 3820
- Joined: Sun Aug 07, 2005 11:26 am
- Location: Langford, Somerset
Re: Where's the heater matrix?
Haven't checked anything yet but will have a gander at the coolant level. It was fine a few weeks ago when I did a little service on the car.
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp
)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp

2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
- Captain Jack
- 3.0 24v
- Posts: 3820
- Joined: Sun Aug 07, 2005 11:26 am
- Location: Langford, Somerset
Re: Where's the heater matrix?
Coolant level OK and the passenger footwell is dry. This only seemed to happen in torrential rain we've been having recently. Air con seems to be kicking in and today, being bright and sunny, I haven't had any steaming up issues...
Need a closer squint.
Need a closer squint.
2003 - 2008: 1998 Peugeot 406 2.1 TD 110bhp LX Saloon
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp
)
2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
2008 - 2009: 2004 Honda Accord 2.2 CDTI 136bhp Executive Saloon
2009 - 2013: 2002 Peugeot 406 2.0 HDI 110bhp Executive Saloon
2013 - 2021: 2007 Peugeot 407 2.2 HDI 170bhp Executive Saloon (mapped to 213bhp

2021 - ????: 2016 Ford Mondeo 2.0 TDCi 180bhp Titanium
- steve_earwig
- Moderator
- Posts: 19813
- Joined: Thu Oct 04, 2007 6:09 pm
- Location: Jastrebarsko, Croatia http://www.jastrebarsko.hr/lokacija/
Re: Where's the heater matrix?
Perhaps the air con drain is blocked
Or is that what you meant about the passenger footwell being dry 


Unskilled meddling sin©e 2007
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- Doggy
- Mod with a 2.2 HDi, De-Fapped!
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- Location: Northants
Re: Where's the heater matrix?
My air con drain was a bit prone to this - windscreen would mist up after stopping when the a/c had been in use. Tried to clear it without stripping everything down, without much success. During our 'summer' I got round it by turning of the a/c and letting the evaporator warm up before stopping.
Extensive use during my recent trip to the sun, seems to have 'cured' it.
(Expensive, but definitely more fun than stripping out the centre console, or removing the front exhaust)!
Extensive use during my recent trip to the sun, seems to have 'cured' it.

(Expensive, but definitely more fun than stripping out the centre console, or removing the front exhaust)!

2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)