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A problem concerning the heating radiator of the Audi A3 Sportback.

Model: Audi A3 Sportback MK 3 - Years: 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Heater core

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A problem concerning the heating system of the Audi A3 Sportback from 2013 onwards, especially regarding diesel engines, is that the heating radiator gets clogged in such a way that no hot air comes out of the vents. The fault is such that it is necessary to change the radiator, which can be accessed from the driver's footwell.

It is also necessary to completely drain the system and perform a flush to remove any residues that may have accumulated inside, using a special liquid available from Audi dealers. This operation is necessary before refilling the system with new liquid, as otherwise residues could remain in circulation and contaminate the radiator again.


Posted on 2 August 2025 by ScegliAuto


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On the Renault Laguna, the fuses are located inside the fuse boxes installed in the vehicle: in this car model, you will find two boxes for containing the fuses. The first is in the fuse box on the left side of the dashboard, accessible by opening the driver's door: here you will find the fuses for the windscreen wipers, fog lights, horn, etc. The second box is located on the right side of the engine compartment: here you will find the fuses for the dipped headlights, radiator fan, alternator, etc.

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