Well passed my MOT on a BKD 2.0 TDI and he noticed emmissions were a tad high said EGR could be tad blocked up.
I've had the seals ready to take the EGR off and do the clean up my MOT chap said leave over night in
petrol to clean it some say
brake cleaner even
Redex or
oven cleaner?
I'm not worried about metalic parts but there looks like a diaphram from one of the vacum parts so not sure if there is any rubber seals in the EGR or its a simple metal mechanical device?
Some have said no point in cleaning it, should be replaced its only done 60K?
Funny thing the MOT chap was surprised the EGR had not been replaced before as if he was not a fan off them LOL!