why are 3 out of 4 of my exhaust ports oily looking and one is dry?surely they should all be dry looking.i did disconnect my egr about 8months ago and breather was oily inside.i have a 2000 citroen berlingo and it has 90000miles?
Phone a local Citroen garage and ask what they think it is but to me it sounds very much like worn cylinders or worn oil control rings on 3 of the pistons.
It may also mean replacing the big and small end bearings on the piston connection rod.