Does BMW Need Timing Belt Replacement?

[Greg]

If the vehicle has been driven for 200,000 to 300,000 kilometers, the timing belt must be replaced. This is because after reaching this mileage, the timing chain will become too long, causing ignition disorder in the engine, which can bend the valves or connecting rods, hence replacement is necessary. Timing Belt: The timing belt is a crucial component of the engine's valve system. It connects to the crankshaft and ensures accurate intake and exhaust timing through a specific transmission ratio. The use of a belt instead of gears for transmission is due to the belt's lower noise, minimal self-variation, and ease of compensation. Clearly, the lifespan of a belt is shorter than that of metal gears, so regular replacement is required. BMW: BMW's vehicle series include 1, 2, 3, 4, 5, 6, 7, 8, X, M, Z, i, and others. Among them, the 1 Series is a compact car, the 2 Series is a compact coupe, the 3 Series is a midsize car, the 4 Series is a midsize coupe (including convertibles), the 5 Series is a full-size car, the 6 Series is a full-size coupe (including convertibles), the 7 Series is a luxury D-segment car, the 8 Series is a luxury coupe, the i Series is BMW's electric and hybrid series, M represents BMW's high-performance and sports car versions, the X Series is BMW's specific SUV (Sports Utility Vehicle) lineup, and the Z Series is BMW's entry-level sports car.