Ford Fiesta ST Mk7; Ford Fiesta 1.0 EcoBoost Mk8; Ford Fiesta 1.0 EcoBoost Mk7; Ford Focus ST Mk3; Ford Focus ST Mk2; Ford Focus ST TDCI; VAG Software. VW Golf R Mk7; VW Golf GTI Mk7; VW Golf GTD Mk7; VW Polo GTI AW; VW Polo GTI 6C; Audi RS3; Audi S1; Audi S3; BMW Software. BMW M135i; BMW M140i; BMW M235i; BMW M240i; BMW M2; BMW M3 | M4; BMW M5
Ford Focus ST - Ford Focus ST Mk2 whirring noise - help please!! - elekie&a/c doctor Try and remove the oil filler cap with the engine running.If it is a struggle,and there is a lot of "hissing",then it is very likely the engine breather is faulty.It is part of the oil filter housing .Not a cheap or easy fix.I think the parts are cheaper from aNlZdqzh.