The engine is highly reliable, but as with any engine design, there is a list of common faults that can crop up. Being aware of these faults can help you to anticipate and mitigate any damage that they may cause. This article highlights several common problems with the N55 engine, such a...
When knock occurs, you get a partial burn of the fuel air mix, or it happens over a longer duration and the flame front that should be cleanly pushing the piston down, is effectively swirling around, losing you power and often putting unburnt fuel through your catalyst which will definitely...