Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

Sealing the Cabin Air Duct

Model: Volkswagen Transporter MK 3, T3, T25 - Years: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990
Part: Checks and maintenance

See other generations:
Video tutorial

If a repair has been made to the cabin air duct that required opening it, i.e., breaking the welds of the plastic components (a utility knife or metal spatula can be used for this), it will be necessary to reseal it after the repair: a very simple solution is to heat the plastic joints (a heat gun or simply a lighter can be used) until the plastic melts, then compress and seal the joint with pliers while the plastic is still warm; this operation should be repeated on each joint.


Updated on 14 February 2026 by ScegliAuto


Related tutorials

How to Change the Cabin Air Filter on a Volkswagen Transporter T4
How to Change the Cabin Air Filter on a Volkswagen Transporter T4
Volkswagen Transporter (1990-2003 / MK 4, T4) Let's see how to change the cabin air filter on a Volkswagen Transporter T4: open the front bonnet. Remove the air filter housing located directly in…
How to replace the EGR valve of a Volkswagen Transporter T5.
How to replace the EGR valve of a Volkswagen Transporter T5.
Volkswagen Transporter (2003-2014 / T5, MK 5) Let's see how to change the EGR valve on a Volkswagen Transporter T5: first, we will need the new EGR valve, which we can find on mister-auto.it with…
How to Replace the Cabin Filter in a Volkswagen Transporter T4
How to Replace the Cabin Filter in a Volkswagen Transporter T4
Volkswagen Transporter (1990-2003 / MK 4, T4) In this video tutorial, you can see how to replace the cabin filter in a Volkswagen Transporter T4 by following some simple steps: first, purchase a …

    Frequently Asked Questions

    • Transporter 2014-2025 - Where is the OBD port located on the Volkswagen Transporter? Read answer

How to reset the tyre pressure warning light on the Kia Niro EV?

To reset the tyre pressure warning light on the Kia Niro EV, inflate the tyres until they reach the correct pressure value. This value is indicated on the sticker attached to the driver's door pillar. Once the tyres are inflated, turn on the instrument cluster to check that the warning light has completely disappeared from the display. If it is still present, you may need to drive for a few miles to ensure it disappears completely from the screen.

Watch the video!


by ScegliAuto

More videos