Question about 2003 Volkswagen Passat

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No heating on passat 1.9tdi 130

When i put heating at max it blows only cold air even when the temp of the engine is 90

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

blueextc3221
  • 15935 Answers

SOURCE: 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.

Posted on Jan 14, 2009

  • 1 Answer

SOURCE: The heater on my 2002 VW Passat is blowing cold.

I have the same problem, but mine was because someone put stop leak in it! otherwise, check my profile, someone posted a answer that may help you.

Posted on Mar 30, 2009

  • 6 Answers

SOURCE: 1998 VW TDI A/c not blowing cold air!

you may have a dampner issue with your climate control. the dampner is controlled by your Hot/Cold switch. if the dampner is stuck or not working you won't get one but the other. in your case maybe the dampner is stuck on hot, even tho the control says cold.
one possible solution may be a fuse... talk to a volkswagon guy and he'll be able to offer a suggestion or two.

Posted on Jun 19, 2009

  • 15 Answers

SOURCE: heater is not working, just blows cold air... on

check coolant level if thats ok check the control valve for the heater matrix as this could be stuck shut hope this helps

Posted on Dec 02, 2009

  • 2 Answers

SOURCE: 2001 Passat A/C blowing intermittant cold and

Probably a bad solder joint on the relay that controls the a/c. Had this problem with my 2004 Passat. It is well documented problem and with a soldering iron I fixed it in about ten minutes. From what I have read this is a common problem. You could try a new relay (number 384) or solder your old one as explained here: http://www.passatworld.com/forums/showthread.php?t=244928&highlight=a%2Fc+relay+repair

Posted on Jun 05, 2010

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