Yeah, the plugs were changed last year, along with 2 of the coil packs due to breakage upon removing them to access the plugs. Coil packs 5 & 6 closest to the firewall were replaced. I did go over the recommended mileage when replacing the plugs though. Not sure if that had anything to do with it? The BMW service advisor insists that the fuel injectors were the issue. I guess I'll find out when they replace them and run the car through it's paces. I pick it up this weekend.
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