u/Glass__17

I asked if I should change my cabin filter because It’s the first start of the AC this summer, I found that the air density wasn’t that good, the fan speed works well, but the density of the air itself was not
And I found that the difference between 20 degrees and 16 degrees was nothing
Now i feel like I have a new AC
Notes: this filter was on for 1.5 year and 15k km

I heard that sound from my rear breaks at the end of the day from months ago , the breaks work well but after I move for a little I hear that sound and when I stop I press the brakes for like 2 times then it stops and when i move it get back again

I cleaned the rear brakes and the sound goes, after 2 days it came back again

Notice that it’s a drum breaks and it’s in a good condition