Like any vehicle, the BMW also occasionally has its own issues. Here’s a look at two of them:
Variable Nockenwellen Steuerung (VANOS) Noise
Also referred to in America as the variable valve timing system, the VANOS is known to be the cause of the annoying engine rattle noises that so many BMW owners have experienced. Let’s face it, you can only drive so long with the speakers blasting to block out the sound of marbles rolling around in a tin can! VANOS modifies the position of the camshafts and is the source of the engine’s rattling noise when you’re driving at higher RPMs. While almost unnoticeable initially, with more wear to the VANOS, the noise gets louder (and more annoying)!