Model Number for mine is MC3198, MB-Alpine fibre optic unit. I think the latest MB part number is 163-820-38-89 or 203-820-90-89

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2012 ML350 Bluetec 4-matic
1999 E320 4-matic Estate


"A ship in harbour is safe, but thats not what ships are built for". - John A. Shedd

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