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 Post subject: Heating problems
PostPosted: Tue May 14, 2019 6:29 pm 
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Joined: Fri May 10, 2019 3:58 am
Posts: 5
Hi hope everyone is doing good.

I got issue of my Mitsubishi outlander phev about heating even its blowing cold air even if the temperature is set higher I wonder if it's something to do with setting.
Very much appreciated any advice.
Thanks


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 Post subject: Re: Heating problems
PostPosted: Mon May 20, 2019 5:28 am 
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Joined: Sat Oct 06, 2018 3:24 pm
Posts: 89
Location: West Midlands, UK.
If you're not running the engine, could it be that the electric heater has failed?


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 Post subject: Re: Heating problems
PostPosted: Mon May 20, 2019 6:11 am 
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Joined: Mon Dec 03, 2018 8:47 am
Posts: 158
Location: Southern end of North Yorkshire, UK
There's also a known issue with the inline filter that's just before the heater matrix getting clogged. That's not a big job to check and clean - just involves clamping the coolant hoses and disconnecting then pulling out the filter.

_________________
2015 Mitsubishi Outlander PHEV GX4H (petrol/electric)
2008 Volkswagen Caravelle (diesel)
(recently departed - 2004 Subaru Outback 3.0Rn (LPG), 1991 Mitsubishi Pajero 2.5 LWB (WVO))


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 Post subject: Re: Heating problems
PostPosted: Sun Jun 02, 2019 6:35 am 
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Joined: Sat Jun 01, 2019 4:51 am
Posts: 10
Location: Australia
I just bought a 2017 model from a dealer and have this exact problem - blowing cold air into the cabin when the heater should be on. Took it back and they confirmed it's the filter - they are going to replace it.


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 Post subject: Re: Heating problems
PostPosted: Sun Jun 02, 2019 6:37 am 
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Joined: Sat Jun 01, 2019 4:51 am
Posts: 10
Location: Australia
I do wonder though why this inline filter is needed, and what is clogging it up. Surely the coolant loop is a closed system? It's not obvious to me what would be getting in there that would require filtering out...


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 Post subject: Re: Heating problems
PostPosted: Sun Jun 02, 2019 8:28 am 
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Joined: Mon Dec 03, 2018 8:47 am
Posts: 158
Location: Southern end of North Yorkshire, UK
I’ve thought the same. I can see why they’ve added it though - far easier to pop off a rubber coolant hose and clean/replace a filter than strip the entire dashboard out to replace a clogged heater matrix.
But where is the debris coming from? Unless it’s a consequence of the split heat source setup on models with an electric heater - if the ICE never starts (short, gentle trips with no high heater demand) then the coolant in the engine and radiator will tend to sit around and maybe allows for some oxidation or something to take place that eventually gets flushed through to the matrix when the valve does get opened.

I wonder if the diesel Outlander has the filter?

_________________
2015 Mitsubishi Outlander PHEV GX4H (petrol/electric)
2008 Volkswagen Caravelle (diesel)
(recently departed - 2004 Subaru Outback 3.0Rn (LPG), 1991 Mitsubishi Pajero 2.5 LWB (WVO))


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 Post subject: Re: Heating problems
PostPosted: Thu Jun 06, 2019 4:55 am 
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Joined: Sat Jun 01, 2019 4:51 am
Posts: 10
Location: Australia
Just an update on mine - it took the dealer two days to diagnose the problem, which didn't turn out to be the filter after all - it was a loose electrical connection to the water pump. Nice to have a warm car at last!


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