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Frequently asked questions about cars and motorcycles

Schema elettrico del Mercede Vito W639

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

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Video tutorial

The electrical diagram of the Mercedes Vito W639 is an essential tool for anyone responsible for its maintenance. Its primary utility lies in diagnosing electrical faults, but it should not be underestimated for the safe and professional installation of aftermarket accessories.

With this diagram at our disposal, we can understand how the systems work, such as the operation of the central locking system or the rain sensor circuit; we can repair or replace damaged wiring, identify fuses and relays, and locate components and connectors within the vehicle.


Posted on 18 December 2025 by ScegliAuto


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How to Replace the Glow Plugs in the Fiat Ducato 2.3 Multijet?

Glow plugs, as the name suggests, raise the temperature of the engine in diesel vehicles to allow for easier starting. The manufacturer, in this case, Fiat for the Ducato 2.3 Multijet, specifies how often they should be replaced, and a warning light will illuminate when it's time. This work is carried out under the bonnet. First, remove the upper engine cover, then lift the coil and, using a socket wrench of the appropriate size, unscrew the glow plug to remove it from the base, followed by installing the new one.

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