Having a bad BMW 840Ci Crankshaft Position Sensor can be a real pain. It can make your car nonfunctional, which can hurt other parts and end up costing you a lot. Luckily, BMWPartsDeal has a wide range of BMW 840Ci Crankshaft Position Sensor that won't break the bank. They're made to work just as well as the original ones and are easy to install. Take a look at our parts today!