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How to Replace the Cabin Fan Resistor on a Mercedes-Benz B-Class - A-Class

Model: Mercedes Classe B MK 1, W245 - Years: 2005, 2006, 2007, 2008, 2009, 2010, 2011
Part: Blower motor

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Video tutorial

This guide outlines the procedure for removing and replacing the cabin fan resistor on a Mercedes-Benz B-Class, as well as the A-Class. First, get inside the vehicle and unscrew the fixing screws located under the glove compartment using a Torx screwdriver to remove the plastic cover; you will find the cabin fan and its resistor at the back, as shown in the video.

At this point, disconnect the electrical connector to remove and replace the resistor with the new one, then reassemble everything!


Updated on 19 May 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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