Guess will find out - you are thinking flushing cost correct

IIRC when I finally got my local dealer to look at it, I did so by insisting they waited at the entrance so that when i arrived and parked up, they could get smell the odour. The technician immediaetly lifetd th bonnet and inspected the engine between the vee, and quickly found where the cooler had been spraying oil onto one inner side of the vee....there was enough moisture/stain for him to get dirty fingers when he wiped his hand along the block.

As soon as the work had been completed, they also steam cleaned the engine to remove asny possible burn-off of residue, no smell!!

Thanks mine goes in on Wed - think this is my issue