BMW 3-Series Transmission Solenoids, Sensors, Switches & Control Units

In order to change gears depending on your speed and driving conditions, the automatic transmission employs a number of bands and clutches. These components operate with the help of fluid pressure. The system also includes such parts as transmission solenoids that open and close valves, so that transmission fluid can enter and pressurize the clutches and bands. A solenoid comprises a spring-loaded plunger, which is wrapped with a coil of wire, and connected to auto’s engine sensors and a transmission control module to receive electric signals when to open or close.

An automatic transmission is a complicated device that is not free of potential problems. You can face mechanical issues and malfunctions of electrical parts, delays in shifting or no downshift at all. Some BMW 3-Series owners face the problem with reverse, which can be expensive to fix in ZF transmissions. Whatever problem has happened with your gearbox, changing the whole transmission in many cases is not necessary. If your transmission requires replacement BMW 3-Series transmission solenoids, sensors, switches & control units, you can easily obtain them in our store and bring your transmission back to life.