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Discussion Starter #1
Hi guys i need some help with my e46 318 i saloon, the heater inside the car when put on temp 16 degress should give out cold air from the vents, however heat comes out Do I have a problem with the heater control unit before I have ir replaced. Could anyone guide me or tell me what the problem is:confused.
 

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Discussion Starter #3
what dial mate. Its electronoc controls and everything turn to cold or minimum. no idea what it is. do i need some part or a new control mechanism
 

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2000 BMW 318i Problems

It's in between the 2 central blowers you probably have it on hot so you will see 2 red dots on it turn it till you see blue dots
 

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Discussion Starter #5
i will try and post a response. thats if it is that simple but will take your word for it - for now but seem to think its something more sinister.
 

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If it is blowing hot all the time, it can be caused by a defective hot water valve. This is in the engine compartment and regulates the flow of hot water to the heater matrix. When this fails, it will default to open, allowing hot water into the heater matrix.
 
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