Excessive oil residue restricting intake ports is a common issue for turbo BMW models. We us a tried and true method called Walnut Shell Blasting to restore air flow. See photos in the slideshow below.
IKONIC Auto Garage at 6137 Lankershim Blvd North Hollywood CA 91606 specializes in full BMW, MINI & Rolls Royce Service. We are experienced and knowledgeable technicians who are excited to keep your driving machine maintained with dealer quality workmanship.