BMW 323i Window Regulator
When a BMW 323i Window Regulator Nears Its End
No matter the year, make, and model of a car, it seems that window regulators are naturally made with a very short and unpredictable service life. Count the BMW 323i in that list of cars installed with very defective ones. You don't want to end up riding a car with bad windows. It's better that you foresee this happening and be prepared with a replacement on hand. The following are some of the signs that can tell you if the window regulators of your BMW are nearing its end:
Unusual sounds during operation
The only thing you should hear when you activate your car's window regulators is the soft hum of the motor lifting and lowering the piece that supports the glass. Any noise other than this is a sign that you're your regulators are hanging by a thread. Snapping and grinding are some of the common sounds. If you hear a loud clunk or pop when the glass is fully opened and totally down, buy and be ready with a replacement.
Rattling noise when opening or closing the door
Glass windows held properly by the window regulators should stay put for as long as it's installed. If these excessively move and shake every time you open or close the doors, it means their supports are loose. After a few repetitions of operating the door, these braces will snap in a matter of time.
Intermittent window movement
With working regulators, the window should steadily move for as long as you activate it to go up or down. Movement should only stop once you decide to stop it. If what you have are ones that move only for a couple of inches after every few minutes, throw your old regulators and buy new ones.
Window movement is guided by the rubber rails running on the sides of the window frame. Glasses that are misaligned and running outside of the tracks are a sign of bad regulators. The parts responsible for adjusting height are off center as well. Prolong the situation and this eventually becomes the main reason for having a busted assembly. Off windows are harder to move, and this puts too much stress on the regulators. In time, the extra work will lead to failure.