common fault on the sprinters is that of a break in the loom that goes from the bulk head thru to the engine bay, its wire 45, and 53 or 55 from the ecu, multi meter, check for continuity between the 3 wires and rectify if required if there is no continuity. The break occurs at the bulk head, hope it may help you. williamsdiesels.com...... a help not a hinder
williamsdiesels.com
June 2009