The picture of you reminds me of my air orgies.
I also had my filter sawed off back then.
I didn't understand the inner workings.
Especially, after driving about 200 kilometers since the "crack" sound appeared, the tire was always completely flat.
The filter screen was always empty.
Sure, here is the translation of the text from German to English:
"MFG" stands for "Mit freundlichen Grüßen," which translates to "Sincerely" or "Best regards" in English. It is a common way to end a formal letter or email.