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How to Reset the Mercedes E-Class Air Conditioner

Model: Mercedes Classe E W211 - Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Part: Warning light – error code

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Video tutorial

This guide will show you how to reset the air conditioner of the Mercedes E-Class. To perform the reset, you need a diagnostic tool connected to the OBD port to communicate with the control unit.

So, get inside the vehicle and turn on the ignition. Select the brand, model, and engine type, then navigate to the air conditioning section to view any error codes and proceed with the reset.

At this point, test the air conditioning system by disconnecting the diagnostic tool.


Updated on 18 September 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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