Hi Everyone,

I've got a much loved W210 E320 CDI & today I hit the local motorway and accelerated from 50 to 85mph , looked in the rearview and thought a weapon of mass distruction had gone off behind me !!! Whopper of a cloud of black smoke. Car seems to run fine & waswarmed up at the time. The Panza has done 65K miles and says next service is 8K miles away.

Looking for any suggestions on what's going on and what to do about it ...

Thanks!