This beautiful M4 came to us with a misfire. After investigation using our BMW Dealer equipment, we identified both the original and replacement spark plugs were faulty. After confirming this, we supplied and fitted Genuine parts to rectify the issue.
After fixing the misfire, we continued by giving the car our fully comprehensive vehicle health check and carried out an oil service. Using the BMW AOS Online system, we uploaded the service details onto the iDrive Service History record and BMW Server.