BMW X5 Washer Reservoir Cap
Pinpointing the Causes behind Bmw X5 Washer Reservoir Cap Problems
Do not take your Bmw X5 washer reservoir cap for granted. It may be but a small piece of plastic or rubber, but it performs a very vital function in your car. This cap contains the windshield washer fluid inside the reservoir. When this cap gets broken or damaged, the washer fluid will spill onto the other components under the hood. Also, your windshield will be full of dirt and dust because your windshield washer container is empty. To prevent such hassles, diagnose the causes of cap problems as early as possible.
Cracks and holes
One of the most prominent problems that you'll ever encounter with your washer reservoir cap is physical damage such as cracks. Holes can also cause leaks in the system. Physical damage is very easy to detect. All you need to do is to open your car's hood and locate the washer reservoir. The reservoir is usually a plastic container that is labeled with "windshield washer." You can also identify the container through the marking written on its cap. Typically, there's a two spurts of water shown on the cap. Once you found it, remove it from to container for further inspection. When you see plenty of holes and cracks, replace the cap immediately.
When you noticed that you need to exert extra effort in removing the cap, it's possible that the cap threads are severely damaged. You'll notice this particular problem when you're refilling the washer reservoir. If the cap is stuck, you might need to put ample amount of oil to loosen the cap a bit. Never heat the cap because the plastic or rubber may melt making it harder to remove. It's also possible that the cap is congested with dirt particles. Clean the cap and the container's opening to prevent the cap from getting jammed.
This issue is the exact opposite of the previous one. A cap may also get loose due to severe mechanical vibration inside the hood. When the cap is not installed firmly, the washer fluid can leak out of its container. This can damage the engine as well as the other components under the hood. To check if the cap is wobbly, twist it slowly. If the cap comes off easily, twirl it in a counterclockwise direction. Twist it a bit harder to tighten its mounting.