Question about 2003 Volkswagen Passat

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Volkswagen passat 2003 has a little heat when it is warm out . no heat when cold out. 2003 volkswagen passat.

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6ya6ya
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Posted on Jan 02, 2017

j_del
  • 1586 Answers

SOURCE: 2004 volkswagen passat v6 no heat

Do you notice that the engine coolant temperature gauge stays on the lower part of the scale as well? If so, it's likely that your thermostat is stuck open - this prevents the coolant from staying in the block long enough to absorb heat that is used to heat the climate-controlled air. I'm not positive on the 3.0 in your car, but the 2.8 V6 in my Audi A4 requires tremendous disassembly in order to change the thermostat. I believe the 3.0 is the same - the labor involved is only slightly less than that required to do a timing belt change (which, if you change the thermostat, since you're already all the way in there, you may as well do the t-belt service as well so you don't have to pay for all that labor again any sooner than necessary).

Posted on Sep 30, 2008

  • 14036 Answers

SOURCE: 2003 Volkswagen passat sedan gls where the fuse on

THE MAIN FUSE RELAY BOX IS AT THE LEFT END OF THE INSTRUMENT PANEL BEHIND THE END COVER.YOU ALSO HAVE FUSE RELAY PANEL LOCATED UNDER THE SOUND INSULATOR AT THE LEFT END OF THE INSTRUMENT PANEL.

Posted on Aug 08, 2009

arauzvictor1
  • 466 Answers

SOURCE: Location of fuse box on 2003 volkswagen passat

Fuse panel is located behind trim panel on far left side of dashboard....Thanks

Posted on Feb 26, 2010

  • 1348 Answers

SOURCE: On a Volkswagen Passat 2003 V6 with P0441 code

po441 is generally a code for 02 sensors

Posted on Apr 14, 2010

  • 1 Answer

SOURCE: Free 2003 Volkswagen Passat W8 4 Motion Fuse Box

Can someone help, I have an 03 passat w8 for about a yr

Posted on Mar 08, 2011

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2002 passat 1.8 takes 30 miles driving to get above 100 degrees only on cool mornings. afternoons are fine heats right up. suggestions>


Thermostat is probably bad. If when it is cold out your heat doesn't get very warm then it is the thermostat for sure.

Oct 22, 2011 | 2002 Volkswagen Passat

2 Answers

My 2005 Passat has little to no heat. It worked last year but this year no go. It has 95000 miles on the vehicle.


any help no heat 2005 passat changed heater core i get warm air with nothing on as soon as i turn on the heat the a/c comes on

Nov 28, 2010 | 2005 Volkswagen Passat

1 Answer

Alarm going offwhen engine started. More often when cold. When engine warm dosenot happen as often


VW Passat lose their connection with the key a lot. Try opening the trunk & leave open while you put one key in the ignition & one in the driver's door, then your buttons should finally be able to turn off the alarm. I spent a very cold winter last year trying to get my alarm to turn off til I found this answer.

Oct 18, 2010 | 2003 Volkswagen Passat

2 Answers

Intermitent AC, 04 Passat, blower works but no cold air


possibly gas pressure to low or pressure switch on aircon condensor faulty.

May 17, 2010 | 1999 Volkswagen Passat

1 Answer

V reg volkswagen passat, heater blows cold air. Temperature gauge fine, undone pipes and flushed out system, liquid was brown and rusty, warmed a little after this but still cold. All pipes leading into...


As it was rusty i would assume the poor thermostat has been abused, it's in the waterpump and a few minutes to change.They are £6+ from main dealer.If in the open position(wax has no life left to open or close and spring keeps it open) this is why all seems fine but no heat.With the thermostat in the open position(faulty) your car will use more fuel and wear and tear on the engine particulary at cold starts will increase so change it sooner rather than later.

Jan 30, 2010 | 1999 Volkswagen Passat

1 Answer

I OWN A VOLKSWAGEN PASSAT, JUST BOUGHT IT NOW THE HEAT BOLWS OUT COLD AIR WHAT SHOULD i CHECK OR DO


Check operation of the heater coolant on/off control valve and operating mechanism.
Check thermostat is installed and working OK - replace if in doubt.
Check if coolant heater supply hoses are warm/hot when coolant valve on.
If hoses are cold (no coolant flow evident) check coolant system is properly filled (bleed system as necessary to remove possible air locks).
If still no coolant flow check heater system for blockage.
If all above ok, check heater unit air control vanes operation.

Jan 22, 2010 | 2001 Volkswagen Passat

1 Answer

Won't start when cold


Check the Cold Cranking Amps on the Battery that you have. Normally the Cheaper the Battery the Lower the Cold Cranking Amps. I Recommend getting an "Interstate Battery" . It costs a Little more But has a Warranty and the Cold Cranking Amps that you need. They have never let me Down!

Jan 21, 2009 | 2003 Volkswagen Passat

1 Answer

Over heating


Check your thermostat. To see if it opens when hot. From cold drop the thermostat in hot water, if it opens it is alright.

Oct 22, 2008 | 2003 Volkswagen Passat

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