Question about 1998 Volkswagen Beetle

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My heater in my volkswagen bug blows but do not blow hot air

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If you car is coming to temperture but you still have no heat then you probably need a new flow control valve for the heating system.

Make sure your cooling system is filled to recommended level before you consider the heater control valve. Low coolant levels can have similar effects.

Good luck and be safe!

Posted on Dec 12, 2009

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My 2001 vw passat blow air but not hot.replace the temp.sensor but nothin happen.


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http://alltypesofpartsreplacing.blogspot.com/2012/12/heater-not-blowing-coldno-hot-air-from.html

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To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem?

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This will help.Thanks.

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1 Answer

My gf's heater stopped blowing hot air! I read on


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Air works great but no heat just blows cold air


For this types of problem,i suggest you to check this help links:----Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html
---------A/C, heater, defroster fan, not working?http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html
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2004 passat heater isn't blowing hot air. both hoses are hot going into the heater core. anyone had this same problem and how can i fix it?


we have a 2004 passat with the same problem. after many different attempts. what we did was. drain the heater core, blow air through the system and then put a mild solvent in the system and let it set for about 20 minutes. flush the system and refill with coolant. now our heater burns us out. use low air pressure and be very carefull. heater core was full of junk that came out after we flushed with solvent.

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1 Answer

Golf 1995 1.8 3 door. Fan working hot water comes up tothe entry but it blows cold air.


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You may also need to check whether the fins of the core aren't clogged with dust, dead bugs, etc. (Usually this will cause a significant reduction in airflow compared to a straight vent-no heat or A/C setting.)

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1 Answer

Heater blows cold


Does temp gauge on dash show normal temp? If so problem is with the controls. If sytem cycles through normal controls IE, defroster, floor,bi-level and redirects air properly check to make sure door control is functional for heater core. If door is not opening then you will never get hot air

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1 Answer

I have a 2000 Jetta. The heater does not work properly. The fan blows but it never blows out hot air. It takes it so long just to get slightly warm air and some of the vents are colder than others. I...


Sounds like a clogged heater core or a issue with blend but if you have axis to a air compressor you could blow it out and it should be good done it many times.

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1 Answer

1986 VW Golf heater blows cold air


The heater in your car depends upon a flow of hot coolant going through the heater core in order to get hot air into the car. If the heater core is partially plugged, it will restrict the flow. If you have a head gasket that is putting exhaust into the cooling system, it will eventually get into the heater core. When this happens there is no coolant in the heater core to make the air warm. If the water pump vanes have corroded away the result will be very poor coolant circulation causing the heater to not blow hot air. If your car is equipped with a heater control valve that is not functioning properly, the coolant flow will be restricted. One or a combination of these factors is likely the culprit in your case.
if the car is not overheating, the thermostat is working fine.... replace or flush the heater core multiple times to try and eliminate sediment build-up.

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