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How to Top Up the Coolant on a Mercedes-Benz B-Class

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

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Video tutorial

Before starting, open the bonnet of your Mercedes-Benz B-Class. First, unscrew and remove the upper cap of the expansion tank.

At this point, insert the funnel into the opening. Once you have inserted the funnel, begin pouring in the coolant.

Continue to top up until the level reaches the "MAX" mark. Once you have reached the mark, remove the funnel and screw the upper cap back on, and you will have completed the coolant top-up on your Mercedes-Benz B-Class.


Updated on 29 April 2026 by ScegliAuto


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by ScegliAuto

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