Strangely enough the Cooper S is one of the few cars we do not see very often coming in for a Carbon Clean. These cars benefit greatly from the carbon cleaning and of all cars that suffer from Carbon Build up the Mini R56 is the worst of the lot.
Below are some pictures.
The car came in with on off performance problems. It seems what is occurring is that the valves momentarily stick and the car picks up this noise as a knock and retards timing and lowers boost. In most cases this comes up as a super knock fault killing the performance.
On overall the car couldnt spin in second when it came in and left performing better than ever.
Below are some pictures.
The car came in with on off performance problems. It seems what is occurring is that the valves momentarily stick and the car picks up this noise as a knock and retards timing and lowers boost. In most cases this comes up as a super knock fault killing the performance.
On overall the car couldnt spin in second when it came in and left performing better than ever.