Legend
New lock rings have been introduced to attach the fuel feed modules in the fuel tank in model series 204. After a fuel feed module has been detached, the gasket between the fuel feed module and the fuel tank must always be replaced for safety reasons. When attaching the lock rings, they must be turned clockwise with force using the special tool (claw wrench). The lock ring is locked when the catch tabs latch between the recesses on the locking claws. A lock ring that is not latched in correctly may become loose, which may result in leaks in the fuel tank! Information for Service The fuel feed modules can only be detached and attached using a special tool (W 001 589 00 07 00). For additional information see AR 47.10-P-4100-02 CWA
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Mercedes Benz C-Class (W204) 2007 - 2014 Training Manual > Electrical System: Signal Acquisition and Actuation Module (SAM)
Front SAM The front SAM/SRB control unit (N10/1) is installed in the engine compartment in the driver-side control unit box. The most important functions are: Control of the front exterior lights Master of the turn signal function Control of the cornering illumination Rain closing of the tilting/sli ...