Hello, Had changed the entire fuel system including tank at 70,000 km in the 320 CDI Metalspähne in the fuel filter woaruf. After another 20,000 spews appeared again in the new system!! The systems seem to be very sensitive. If I hadn’t noticed, a damage would have been planned! The pump probably has a problem with the lubrication and throws out spews! Will be lubricated with diesel…maybe the designers have not considered that diesel also at brand tank stations does not always meet DIN!!!! Now also 5% BIO diesel is added! This can have bad consequences for Mercedes! Watch out for metal spews at the CDI in the fuel filter!! Mercedes must change everything! Mercedes has taken over 100%, but the vehicle was still under 2 years at this time. Do not let off! The problem is known! Mercedes has tried to convince me that I have filled petrol. Dreisst! Let me take fuel sample in case of doubt. Who had similar problems?