Hi all, quite new to this , ihave a 300tdi auto , serviced regulary and owned from new . its coming up to 12years old and i have only done 45,000 miles, recently my mpg has dropped drastically down to around 20mpg probably less on this last fill up, any ideas as what could be wrong ? I have checked the tyre pressure changed the air filter and fuel filter still no joy,,,, I need help as Mr browns mob are already cleaning out my walet with fuel charges i don`t need my landy doing the same....
suggestions welcomed
cheers
Pinkhank
suggestions welcomed
cheers
Pinkhank