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How to Replace the Thermostat of the Mercedes B-Class 200?

Model: Mercedes Classe B MK 2, W246 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
Part: Thermostat

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Video tutorial

Today, you will learn how to remove and replace the thermostat of the Mercedes B-Class 200. First, raise the vehicle and begin draining the engine coolant by disconnecting the radiator hose; then, unscrew the thermostat screws, disconnecting the electrical connector of the temperature sensor to remove it, as shown in the video.

Now, replace the thermostat with the new original one, securing it properly; finally, top up with the new coolant suitable for your radiator.


Posted on 27 July 2026 by ScegliAuto


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by ScegliAuto

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