Question about Volkswagen Passat

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My 2003 passat tdi sits just below 90c all the time but blows lukewarm air, help I am freezeing

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  • 23 Answers

It could be a number of different things. Most likely the heater core is plugged up. You can try flushing the heater core and reversing the connections of the hoses. This will work sometimes.

Posted on Feb 12, 2014

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Posted on Jan 02, 2017

alicantecoli
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SOURCE: Ford Expedition 2002 Front Heater blows cold air below 45 MPH

impeller is made of plastic on teh water pump and its slipping and spinning on the shaft renew before weather warms up as engine will overheat

Posted on Jan 01, 2009

onyeredson
  • 404 Answers

SOURCE: Nissan Altima no cool air blowing or hot air blowing

Hi!
It appears we have an Air lock scenario and you will need to perform a system Bleed.
Park the vehicle on level ground, when cold remove coolant filler cap, start engine and leave to idle, turn heater on full and blower to max. When engine reaches operating temperature watch and listen near coolant filler, keep clear as gurgling and hopefully a boil over should occur. Top up with very warm coolant and wait as it may do it again.
Check for heat inside vehicle if warm replace coolant cap but keep an eye on temperature gauge as the ~Air lock may have moved on from heater matrix/core so proceedure needs to be carried out again from COLD.

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Posted on Feb 24, 2009

emissionwiz
  • 75822 Answers

SOURCE: AC not blowing cold air at times

poss causes are, sticking low pressure switch, defective Ac compressor clutch closing coil or incorrect clutch driven plate air gap, spec is 0.26 thousands.

Posted on May 11, 2009

  • 736 Answers

SOURCE: Air-conditioning not icy cold inside my VW Passat TDI 1996

chances are if you system was serviced by modern equipment then they would have pulled a vacuum before recharging .. that would eliminate moisture in the system .. the evaporator is inside your heater box .. you cant see it .. the condenser is the radiator like device in front of your engine cooling radiator ..

if the system is changed properly and still does not work or works intermittantly . then there is a good chance that the air conditioner clutch electronic module is bad .. thats a relay like device located on the drivers side behind the dash .. you have to snap off the dash side panel .. its normally hidden by the door .. inside that is the fuse panel and behind that is the relays/electronic modules .. the one that operates the air conditioner clutch is marked 384 .. there are other possibilities depending on your a more precise description of the problem ..

Posted on Jul 25, 2009

oneStan
  • 430 Answers

SOURCE: Hi, The air con in my 2003 Audi A6 1.9 tdi 130 is blowing warm air the air con rad is fully gassed and all fuses are ok . Thanks in advance for any advice on how to fix

The only other thing then would be if the compressor is turning, engaging, and the cooling fan working properly. You should either be able to see the compressor clutch engage, as the switch is energized, or at least hear it click loudly when the switch is energized. If it is not, then there are sensors for the low pressure/high pressure line to tell the compressor when to function, that also have to be checked.

As the engine runs with the compressor turning, one line should be hot/warm, the othe,r (larger diameter hose) should be cool/cold, if the system is working properly.

If the compressor is turning when you have the A/C turned on, then see if the cooling fan is running as well. It must run to remove the heat and cause the process to function properly.

Good luck!

Posted on Mar 28, 2012

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2003 ford taurus blows lukewarm when the heat is on. Blower blows fine and a/c works great.


Check out the heater hoses for warmth. Both should be the same with the water flowing. If they are not, the water is not circulating.

There are 2 ways the heater can work. One style varies the amount of water flow to control the heat levels. The other uses the blend flaps in the ducts to push air flow around the heater core.

If the heater hoses are not circulating water, a part called a flow valve is to blame. Check out the autoparts sites for photos of the flow valve for your car. If you have the blend flap system, a solenoid called a "motor" is not changing the position of the blend flap in the dashes' ductwork.

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try flushing the heater core ,if outside temperature is below about minus 5c then put some cardboard in front of the rad

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good day, you may have some heating core issues, anti freeze leakage, have it checked. hope this helps, have a nice day

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As a general rule with a modern VW TDI, if it isn't running properly go and get the engine fault codes read by a properly equipped garage. If your usual garage doesn't have the correct equipment I'd recommend finding one that does.

There are so many things that could be wrong that guessing is usually a waste of time, so "get the codes read" :-)

My '96 Passat TD (not a TDI) overheated last week and the battery light came on - it was a failed alternator belt which drives both the alternator and the water pump.

Hope this helps, D.

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