what engine breather are we talking ? cause there's one inbuilt into the head cover but i've put a completeley new cover on ,i don't know of any others on this engine? are the turbo seals replaceable? iv'e done a compression test and there all the same pressure 28bars but it needed a few cranks to reach[don't know if thats usual].when i first got the car, i removed theintercooler and hoses and there were at least a few spoonfuls, and oil was throughout the airpipe system, which i've cleaned out. oil level is a bit on the low side , which i did on purpose.about 3mm above minimum. i like the sound of turbo seals, any way of specifically testing those, and are they alone replaceable or is it a new ££££££££turbo££££££££. cheers daz.