Hope that someone can shed some light on a problem I am having with a 2005 W211 E280 petrol.
Car intermittently turns over but won’t start. Traced the problem to the fuel pump as when I thump the underside of the tank the pump starts. However before I replace the pump I checked the supply voltage and it is only 10.5 VDC at the sender unit connector under the seat. Could this be a problem with the SAM unit and not the pump.
1995-Present : E200, E220D, E240, E290TD, E300, E300TD, E200, E240, E250, E280, E300, E320, E420, E430, E350, E500 E55AMG, E63AMG & incl. blueTEC & BlueEfficiency, All CLS models
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