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Function and position of the MAF sensor in the Mercedes Vito

Model: Mercedes Vito MK 2, W639 - Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
Part: MAF sensor

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Video tutorial

In this video we can see the position of the mass air flow sensor (MAF sensor) on a 2017 Mercedes Vito: this sensor measures the amount of air being drawn into the engine in real time, sends the data to the engine control unit to calculate the optimal air/fuel ratio for gasoline engines or the amount of diesel to inject.

As a result, it generates combustion efficiency and manages the EGR valve.

Inside the Mercedes Vito engine, this component is easily visible on the air intake pipe, near the cylinder head cover. In diesel engines installed in the Vito, the mass air flow sensor works in synergy with the MAP sensor, the EGR valve and the turbo, in order to prevent overpressure.


Posted on 19 June 2025 by ScegliAuto


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