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How to disassemble the SAM module on the Mercedes Viano

Model: Mercedes Viano MK 1, W639 - Years 2003-2013
Part: Checks and maintenance

In this video we can see how to disassemble the SAM module on the Mercedes Viano: first of all, let's define the SAM: it is the box that contains the fuses, relays, a microprocessor and controls most of the electrical functions of the vehicle. SAM stands for "signal acquisition and confirmation module". So, it's not a difficult thing, but there is a screw a bit hidden under the plate. So we remove the control unit and all the fuses and we can see the two torx screws that need to be unscrewed. But first we need to loosen the three bolts that hold the upper plate in place, one of which is hidden at the back. This plate won't come out unless we remove the lower plate.

Posted on 14 September 2024 by ScegliAuto

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