i just get done with Wallnut Media Blast on R55 Clubman S 100,000 miles on the car
Before and after..

here is the results
i noticed there’s a line between the 2 intake valves.

I was the third owner so i don’t know the history, the car runs fine though no CEL codes, a little rough idle during initial start-up other than that its fine. I read a lot of nasty issue about N14 engine especially direct injections so i decided to do it myself. I started the car and started fine, i haven’t drove it yet maybe tomorrow.

Wow! Those were filthy! I’ll bet you notice a pretty significant improvement when you do drive it!

2008 Clubman S
yeah the car runs better no more engine shakes and shift even better now.

Yes 220F sounds right for the temp. I don’t think it actually does help much with the carbon issue, since so many folks out there (myself included) have had their ECU remapped and the coolant temp lowered. Anecdotal evidence would seem to suggest that it doesn’t make very much difference, but I don’t claim to be an authority on it. The changes that they made to the N18 appears to have done a lot to keep it at bay more so than with the N14 engines. I am almost 100% positive that the previous owner of my “Duncan” never had it done, as he kept meticulous records which I am now in possession of. I had the intake manifold off a week or so ago to replace the plastic water pipe back there underneath it. Since it was off I had to check them out.
So.....yes, they are dirty and probably in need of a good blasting. But keep in mind, this car has not had the valves blasted before. They are dirty, but with a little over 120K miles on it, I really expected them to look a whole lot worse than they do! So I guess I’ll be picking up a media blaster soon. Lol.


This was probably the worst looking pair