Quote:
Originally Posted by 1speedbike
As steve said, nope it's not. But my dealership also offers an injector flush/cleaning. However, they don't recommend doing it for the N54/N55 engines, only the N/A ones. I was quoted a bit cheaper for it than the walnut shell blasting (the intake valve cleaning) at about $450.
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What's the reason they don't recommend injector cleaning for turbo engines?
I have N52 and I just add Chevron injector cleaner once a year