What causes the N13 engine vibration issue in BMW 1 Series?

[McGideon]

Reasons for N13 engine vibration in BMW 1 Series: Engine misfire; Worn or loose engine mounts; Carbon buildup issues. Detailed explanations of these causes: Engine misfire: Engine misfire mainly refers to one or more cylinders not functioning properly, typically manifested as noticeable intermittent exhaust gas flow and severe exhaust pipe vibration. Worn or loose engine mounts: Engine mounts are rubber blocks placed between the engine and frame. Once these mounts become worn or loose, engine vibration will become abnormally severe. Carbon buildup issues: When there's excessive carbon buildup in the engine, it affects the vehicle's ignition energy, air intake efficiency, and fuel-air mixture, leading to unstable power output and vibration during both idling and acceleration.