Heat not blowing out vents

Hi and thanks for using 2CarPros.

There are only a few reasons you won't get heat. First, take a look through this link. It discusses the most common causes, checks, and repairs.

Note: I am basing this on not getting heat on neither the left nor right side.

https://www.2carpros.com/articles/car-heater-not-working

Now, the first thing I need you to do is confirm the coolant level is full.

If it is and you have no heat on either side or air flow selection, I suspect the heater control valve is bad. Here are the directions for replacement.

Note: To be sure the valve is the problem, turn the heater on high and allow the engine to warm up. Next, look at picture 2. You will see the solenoid and where two heater coolant hoses connect. One is on each end. Once the engine is warm and the heater is on, feel both hoses. If you find one is hot and the other isn't, replace the valve.

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64 11 274 - Replacing water valve for heater (automatic A/C High)


See Picture 1


Warning!
Danger of scalding!
Only perform this work after engine has cooled down.


See Picture 2


Disconnect plug connection (1).

Installation Note:
Ensure correct cable routing.

Pull out heater valve (2) upwards slightly.


See Picture 3


Release hose clamps (1) and detach water hoses.
Remove water valve for heater (2).


See Picture 4


Installation Note:
Make sure water valve (1) is correctly seated in grommets (2) and rubber mount (3).
If necessary, replace grommets (2) and rubber mount (3).

Filling and bleeding the cooling system.

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Let me know if this helps or if you have other questions.

Take care,
Joe