Question about 1996 Volkswagen Jetta

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Jetta heater core problem

As far as the heater core goes can you give me a detailed description of how to do this? I have the core but no idea how to take this thing apart

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  • oj82wer Jan 23, 2009

    same problem

  • Anonymous Jan 26, 2009

    I have a leaking heater core on my 1996 Jetta. Is there another way to access the box without removing the dash? What about through the firewall?


  • Ionascu14 Feb 09, 2009

    Yep! Same problem with my '96 Jetta. I just started removing dashboard components and whatever else is in the way. To me this looks like about a weeks worth of work to be done. I can only work on it for about 3 hours each evening. I still didn't figure out what bolts hold the dash in place. This is a big job!!!



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Normally we remove the dash. Do you have air conditionning as an option because the A/C lines run into the same box and you can't remove them without emptying the lines properly.

Posted on Oct 31, 2008


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2 Answers

I changed the thermostat but it still does not heat up what else could be wrong

Heater needs Heater Core, Heater control valve, air diverter inside the car and hot water in the heater core. If you just change the thermostat you must have had a reason. If the car was running hot it could be a radiator clog. If the core is clogged no heat. If the heater core was drained when you changed the Tstat there may be air in it - if so no heat. If the control valve (on the heater hose) does not shift- no heat. If the diverter door in under the dash does not direct the fan air through the heater core- no heat.

Jan 03, 2016 | Cars & Trucks

1 Answer

I have a 1997 jetta with 2.0 motor. my heating systems blows air but its cold. is there a flap that needs to be moved or is the core bad?

with the car at operating temp grab the heater hoses they should be hot to the touch and the same temperature.if not then the heater core is probably plugged and will need replacing.if they are the same temp then you may have a heat door inside the car that is not moving far enough to shut off cold air and allow hot air into the car.

Nov 08, 2011 | 1997 Volkswagen Jetta

1 Answer

04 VW Jetta GLS heater core instuctions?

If it is necessary to remove the heater assembly, the cooling system must be drained before removing the heater core.
When a heater core leaks, a new heater core is installed or the old one repaired.
Heater Housing
  • The heater housing is usually under the dash and must be removed to gain access to the heater core.
  • Procedures for replacing the heater core vary with the year, make, and model of car. It threfore necessary to consult the manufacturer's repair manuals for the proper procedure for replacement.
f74-01.gif The heater housing is disassembled to get to the heater core. Heater Core
  • Remove the access panels(s) or the split heater/air conditioning case to gain acess to the heater core.
  • Remove the heater coolant hoses.
  • Remove the cable and/or vacuum control lines (if equipped).
  • Remove the heater core securing brackets and/or clamps.
  • Lift the core from the case. Do not use force. Take care not to damage the fins of the heater core when removing.
  • To reinstall the heater core, reverse the removal steps.
When the heater core leaks and must be repaired or replaced, it is a very difficult and time-consuming job primarily because of the core's location deep within the firewall of the car. For this reason always leak test a replacement heater core before installation.

Dec 11, 2010 | 2004 Volkswagen Jetta

2 Answers


it is more than likely airlocked bleed air from system or open heater core pipe make sure heater core is full

Mar 26, 2010 | 2003 Volkswagen Jetta TDI

1 Answer

How difficult is it to replace a heater core in a 1993 audi 90 quattro? can znyone give me an idea on how to remove the dash?

when u do this take your time, don't force anything, if it wouldn't come out then u missed a retainer somewhere, also the heater core requires taking apart the air ducting, and make sure everything is hooked back up, take allot of picture's before hand to document where everything goes, the manuals are for professional factory tech's and they assume allot of basic knowledge, in other words they don't spell out every little detail.

Mar 10, 2009 | 1993 Audi 90

3 Answers

Brief antifreeze smell in Jeep

Make sure the cooling system is clean with fresh coolant when u change the core, otherwise u may damge the new core becuase your coolant is worn out, if your Jeep has over 60,000 it should be done anyway, also I recommend at least a new upper radiator hose while it is drainned and inspect the other parts of the system.

Jan 29, 2009 | 1999 Jeep Grand Cherokee

3 Answers

92 jetta has no heat blows cold air

you may need to replace the heater core and/ or the thermostat. also, make sure you have antifreeze and water.

Nov 24, 2008 | 1992 Volkswagen Jetta

1 Answer

98 vw jetta gls Heater core

well, i kept pulling everything apart and out of my way. i finally saw it and wiggeled it so i could get the core out. then popped the new one in. Put everything back together.
It took a lot of swearing, a lot of ciggarettes and a lot of storming down the street so I wouldnt smash anything.
but I got it. :D

Sep 30, 2008 | 1998 Volkswagen Jetta

2 Answers

How to remove heater core in a 98 blazer

You have to remove the dash in layers. There's a whole bunch of screws to take out. The heater core is located in the middle of the dash near windshield when you get that far. There are a couple of brackets that hold the heater core in place, remove the heater hoses and pull out heater core. It's quite a long process so give yourself plenty of time.

Jul 15, 2008 | Chevrolet Blazer Cars & Trucks

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