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How to Disinfect the Air Conditioning System of a Seat Leon MK1

Model: Seat Leon 1M - Years: 1999, 2000, 2001, 2002, 2003, 2004, 2005
Part: Air conditioner

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Video tutorial

Let’s see in this video how to disinfect the air conditioning system of a Seat Leon MK1: you will need a specific disinfectant for air conditioning systems, such as LiquiMoly, which can be found with the code 124164866645 on eBay for £21.99, with free delivery.

You will need a long tube to reach the evaporator, for which you will need to remove the cover under the passenger compartment, unscrew the screws (side and centre) and disconnect the ambient light connector.

Now remove the cover to access the evaporator drain tube. Start the engine, set the heating to maximum, ventilation to feet at maximum speed, and activate air recirculation.

Run it like this for 10 minutes to dry the evaporator. Insert the spray tube into the drain tube (about 8/10 cm) and spray the entire dose onto the evaporator, moving the tube to cover the entire surface, then leave it to act for half an hour.

Repeat the drying procedure as previously described, and reposition all parts for reassembly. It is advisable to protect the interior fabrics with a towel to avoid stains, and perform the operation in a well-ventilated area.


Posted on 2 April 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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