Carbon/Oil in Engine Bay (Ford Fiesta 1.4 TDCI). Does anybody know what might cause this? I'm thinking maybe EGR valve? This carbon dirt can be seen under the air filter box where
1.4 Tdci Lacking Power Turbo? Or Injectors? | Ford Automobiles Forum
Workshop repair: 1.6 TDCi Turbo Failure? Here's the real cause… - autotechnician - servicing the independent workshop