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Aug 24th, 2023
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Joined: May 2022
Posts: 7
New to Talk Morgan
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OP
New to Talk Morgan
Joined: May 2022
Posts: 7 |
While my car is off the road I thought I'd investigate the weak heater output before it gets too hot to test it.
The heater in my Plus Four resolutely refuses to blow hot air until the engine has run for at least 5 minutes, and then only when at high revs. Allowing the engine to idle cuts the heat almost instantly; almost as if there is some valve redirecting coolant from the heater matrix elsewhere. Are other owners seeing similar properties? My dealer has helpfully explained that TADTS.
Last edited by MogCX; 17/06/22 08:45 AM.
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Joined: Jul 2019
Posts: 4,607 Likes: 192
Part of the Furniture
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Part of the Furniture
Joined: Jul 2019
Posts: 4,607 Likes: 192 |
Engine coolant thermostat stuck open perhaps..?
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Joined: Feb 2009
Posts: 193 Likes: 5
L - Learner Plates On
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L - Learner Plates On
Joined: Feb 2009
Posts: 193 Likes: 5 |
The priority is to heat the engine when it is cold. The heater works well when the engine is warm.
I have the same thing on mine.
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Joined: Mar 2009
Posts: 11,220 Likes: 159
Smile, it confuses them Member of the Inner Circle
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Smile, it confuses them Member of the Inner Circle
Joined: Mar 2009
Posts: 11,220 Likes: 159 |
I would imagine this is down to the emission engineering ? Most modern cars aim to get the engine up to temperature as quickly as possible so they can manage the emissions and during this phase it might be keeping the hot water within the engine loop? If the AirCon in a big BM is setup correctly it may supplement this to give you heat through an electric element? Just boot it a bit more 
Everyone loves a Morgan. Even me, unless it's broken again.
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Joined: Jan 2022
Posts: 91 Likes: 2
Just Getting Started
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Just Getting Started
Joined: Jan 2022
Posts: 91 Likes: 2 |
My lower vents are useless. Blow little air ever.
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Joined: Jul 2016
Posts: 87 Likes: 1
Just Getting Started
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Just Getting Started
Joined: Jul 2016
Posts: 87 Likes: 1 |
I find my plus 6 very poor compared the trad heater.
Mike
1982 4/4
1999 +4
2004 Roadster S1
2010 Roadster S2
2021 Plus 6
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Joined: Jul 2021
Posts: 16
New to Talk Morgan
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New to Talk Morgan
Joined: Jul 2021
Posts: 16 |
MogCX
Yes I have exactly the same issue. I have raised it with my dealer while the car is still under warranty (just) so hopefully they can do something about it. Roger
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Joined: Aug 2011
Posts: 7,553 Likes: 88
Talk Morgan Guru
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Talk Morgan Guru
Joined: Aug 2011
Posts: 7,553 Likes: 88 |
Pre CX heater comparison. 20 year old 4/4 heater; Driver’s left foot and lower leg roasting. Passenger’s right foot and lower leg roasting. All other parts of the body unaffected. Bud 4/4 - Stanley 
Bud
4/4 "Stanley"
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Joined: May 2015
Posts: 14
New to Talk Morgan
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New to Talk Morgan
Joined: May 2015
Posts: 14 |
The first CX cars had wondeful air to the dash vents but no physical pipe connection to the footwells, they must have assumed air would find it's way down there, it didn't. The first fix was 3D printed parts to direct the air, that was better but definitety feeble even with the dash vents closed. I haven't felt any improvement on later cars so that seems to be as good as it gets.
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Joined: Mar 2012
Posts: 4,491 Likes: 65
Part of the Furniture
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Part of the Furniture
Joined: Mar 2012
Posts: 4,491 Likes: 65 |
Plus 6 has heated seats also - not sure if they were an option.
2021 Lapis Blue Plus 6  You know it makes sense!  2016 Carmine Red 991.2 C4S
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