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Cleaning the MAF Sensor on the Seat Leon MK3

Model: Seat Leon 5F, MK 3 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Checks and maintenance

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Video tutorial

If you notice excessive fuel consumption and irregular engine performance on the Seat Leon, the cause may be a dirty Mass Air Flow (MAF) sensor. To clean it, open the engine bonnet, locate the sensor body on the pipe coming from the air filter, disconnect the electrical connector, and using a flat screwdriver, loosen the two clamps holding it in place.

Remove it and place it on a work surface. Clean it by spraying a dedicated cleaning solution inside.

Wait for it to dry completely, refit the sensor body onto the pipe, tightening the two metal clamps, and reconnect the electrical connector.


Updated on 11 October 2026 by ScegliAuto


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