How To Fix Blend Doors ~ Install a Heater Core and Reseal The HVAC Box
If your MK3 or MK4 has no heat, no AC, or the controls don’t work, it may be due to the blend doors. From the factory the belt door is covered in foam to soften the door close, and divert air in the proper direction. Over time the foam breaks down and blows out the vents. Well it’s time to fix that. This is the most comprehensive guide to fixing blend doors out there.
Today I show you exactly how to disassemble the HVAC box, clean and recover all the doors, and reseal the box. All the products I used are listed below. There are plenty of other options out there, but most of these items can be found easily online, or at your local Home Depot Motorsports.
Become A CrewMember
If you like this show. If you get value out of the videos and content that I put out, consider supporting the show by becoming a CrewMember. You will get discounts you can’t get anywhere else, exclusive videos from me, and VW/Audi training manuals. Between the discounts and the training manuals, the CrewMembership can easily pay for itself. Become a CrewMember today
Help Support The Show
Many of you have asked about supporting the show. For that I thank you. For now, the best things you can do are SHARE THE SHOW, and shop with my links on Amazon. You will not spend any more money that you would normally. Here is the Amazon link ~ Humble Mechanic on Amazon or you can check out some recommended tools I have listed below.
Products I used in this video
- Foam for blend door
- Foam for ducting (I used white just to show for the video if there was no video, I would have used black)
- Aluminum tape (there is cheaper options. this is what I used)
- butyl cord
- Adhesive cleaner
- Adhesive promoter
- Plastic scraper
- Goo Gone
- Milwaukee Heat Gun
Trouble viewing? Watch “How To Fix Blend Doors ~ Install a Heater Core and Reseal The HVAC Box” on YouTube.
As always I love to hear your thoughts. Please post them in the comments section below. Also if you have an idea for a show, contact me via email, or use the contact me form!
Don’t forget to follow me at:
- Subscribe on YouTube
- Tweet me on Twitter
- Humble Mechanic Podcasts
- Project GTI aka WhiteWookie
- Failed VW parts videos
- Tool &amp;amp; Product Reviews
- How To videos
- 2015 Golf SportWagen Videos