Without a working transmission, your BMW won’t have the ability to propel itself as designed. The transmission is needed to convert energy created by the engine into torque. This torque makes your wheels turn and also allows gear changes. Put simply, the transmission is the connection between your engine and your wheels.

Like your engine, the transmission system should last the entire lifespan of your vehicle, but it does need proper maintenance. You should practice routine service for your transmission fluid, just like engine oil. Problems with the transmission fluid are actually the leading cause …