P0300 means the engine control unit detected random or multiple cylinder misfires —. P0300 p0301 p0302 p0303 no other codes via generic reader P0300 means random/multiple cylinder misfires
Audi A4 misfire - YouTube
Learn how to diagnose and fix a p0300 random misfire code in your vehicle
P0300 means random misfires across multiple cylinders
Worn spark plugs or coils Fix it step by step How can i diagnose the cause of a random cylinder misfire in my audi