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Old 26-11-17, 01:46 PM   #1
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Default 308 -08 no heat in the car

I jsut bought this car and the heat was fine. After a couple of hours i noticed that the air on the left side was colder than the right side.
Now i only get a little heat from both sides.
The engine gets hot as usually.
Any ideas?
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Old 26-11-17, 03:00 PM   #2
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check coolant level as engine will still run fine until a lot has leaked out heater will stop blowing heat though.

If coolant has not dropped then there must be an issue inside heater unit but could be various things.
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Old 26-11-17, 03:09 PM   #3
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Coolant level is fine.
Anyoney know where the tempertur sensor is inside the car?
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Old 26-11-17, 03:13 PM   #4
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There is no temp sensor well not to control the heat anyway it is used for the aircon to test the coolness.
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Old 26-11-17, 03:20 PM   #5
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Okej Thank´s
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Old 26-11-17, 03:35 PM   #6
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The coolant travels through the heater matrix constantly it is always hot and the only thing that controls the heat level in the car is the controls on the heater panel these move the flaps inside the heater to the required positions.
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Old 26-11-17, 04:09 PM   #7
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So there must be an electric engine that moves the flaps.
If so maybe that one is broke or can it be the matrix itself?
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Old 06-12-17, 02:24 PM   #8
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Hi, I have a similar problem on my 308SW (09) and after a number of checks it appears that the heater matrix is blocked.
I have seen 2 options for this, one is to replace the matrix (quite a job as the dash has to come off afika) or to remove the matrix and flush it with brick cleaner. I'm not capable of replacing the matrix myself (or getting it out to flush clean) so I'm saving up to have it replaced, maybe have enough to have it done before next winter <shivers>

Just to show how good the experience in these forums is, a bit more reading brings up the following link https://www.peugeotforums.com/forums/...oblems-293682/
which has some very good advice/guidance.

Last edited by tokumaru; 06-12-17 at 02:46 PM. Reason: added link to better information
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