Why is my A4 heater blowing cold on one side?

Why is my A4 heater blowing cold on one side?

Make sure car is up to temperature. If drivers side is cold and passengers side hot then I would put my bottom dollar on its the same fault. If you don’t have the software to read controller 8 you can swap the footwell sensors over and redo test, if problem moves then it’s the sensor.

Why does my AC blow hot when I Turn on the car?

So I’ve encountered a problem which seems to be relatively common with S-Types… after heaving my heater valve replaced (heat was no longer working) the AC on my 2000 S-Type 3.0 now blows hot. Basically what happens is when I turn on the car, it blows cool (ish) for the first minute or so then goes straight to hot.

Is the AC on my S type 2004 working?

I have a S-type 2004 and the display just started to flash however the AC seems to be working normal. Any help would be appreciated.. So I’ve encountered a problem which seems to be relatively common with S-Types… after heaving my heater valve replaced (heat was no longer working) the AC on my 2000 S-Type 3.0 now blows hot.

What should I do if my car heater is not working?

Begin with the vehicle on level ground, engine off (cold) in park with the emergency brake set. Step 1 – A heater cannot operate unless the engine is full of coolant/antifreeze. If coolant level is low check the system for leaks. Step 2 – The engine thermostat control the rate in which the engine heats up.

How does a car heater blow cold air?

Here’s how it works. Most cars have water cooled engines, so the coolant from the engine passes through the heater core, and the blower motor forces the air through. The coolant then heats the air and then warms up the interior of the vehicle.

Can a car heater be unreliable in the winter?

Unreliable car heaters can make the cold winter months practically unbearable. Several things can potentially go wrong with automotive heaters because, much like a home heating system, there are many components working together to heat your car. If one or more of these issues is present, your vehicle may blow out cool air rather than heat:

What to do if your heater is blowing cold air?

Coolant level: If your coolant level is low, your heater core may not be getting enough warmed coolant through it to produce adequate heat. Solution: Top up the coolant and see if it helps. If the level is low due to a leak, track down the source and get it repaired.

What to look for when your car heater stops working?

Look for these tell-tale signs if you suspect a heater core issue: fog inside your car, fruity smell, your car is using a lot of coolant, and the engine overheating. Heater Controls Over the years, these controls can get gummed up or worn out, and stop working.

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