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How to Reset the AdBlue Light on a Mercedes G-Class?

Model: Mercedes Classe G W4631st - Years: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
Part: AdBlue warning light

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Video tutorial

If the AdBlue light has illuminated on the instrument cluster of your Mercedes G-Class, it means that the fluid in the emissions system has reached the minimum level and needs to be topped off. This is a very simple and quick operation; let's see how to proceed in this tutorial.

First, purchase a jug of urea from an auto parts store, then turn off the engine and open the rear hatch.

Next, lift the floor panel, unscrew the indicated cap, and using the hose provided with the jug, add the necessary amount of AdBlue to reach the maximum level.


Updated on 12 October 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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