currently have W204 (320CDI 08),
initial problems were:
No heated seats, auto lights, wipers or horn not working. I replaced front sam, which worked for a week. And it stopped working again. SAM was matched both part number and software numbers. Code read on Star.
I purchased another...
I have just bought a SL55 2004. Fuel always reading 3/4.
My friend has a Chinese knock off Star System.
I followed the star step by step to diagnose.
I diconnected the plug on the fuel sender unit on the petrol tank and put various resistors on the plug socket from 51ohms to 1000...
My 2009 W204 C220 CDI has a faulty rear SAM (apparently). We have a replacement but the boot won't open, neither by fob or using the remote button on the driver door. Does anyone have an idea how to get the boot open please?