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cunning

cunning 11/13/2017

2012 Volkswagen Routan SE 6 Cyl 3.60L

Preventive Maintenance

How to bleed cooling sytem?

I just changed my thermostat, although I am not sure how to bleed the air out.
Where is the bleeder valve? Is it on thermostat housing? If so, how could I open it without spill coolant on belt.
Thanks a lot

2 Answers


Jimm

Jimm 11/13/2017

Typically, the cooling system is self-bleeding, venting any trapped air through the coolant reservoir.

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Jimm

cunning 11/13/2017

Thanks a lot. That is what I hope for, although I found many solutions on youtube about bleeding process for cars before 2010.

bud s.

bud s. 12/1/2017

Many Volkswagens have one or more bleeder valves located on engine coolant pipes or flanges which can be opened with a hex key or hex socket to allow trapped air to escape. Some also have a small hole in the heater hose at the inlet of the heater core. After moving the hose clamp forward, the heater hose can be pulled forward far enough to allow trapped air to escape through the bleeder hole in the hose (to have a helper rev engine slightly while opening any of these bleeders may help.)

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bud s.

cunning 12/4/2017

Thanks a lot. I opened the bleed value on thermostat housing to release the air later on, although I did not find any other bleed valves.

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