The 15 E320 4matic blowers make abnormal noises. Remove and clean them, and spray butter.
SuzanneBetsy 
11 There was abnormal noise last year, and I didn’t use spray butter. After a winter and I turned on the air conditioner in summer, I could hear the whining sound again. I suspected it was dirty again. Moreover, the solid butter bought in a hardware store must have poor high temperature resistance and is not easy to penetrate into the shaft. In the body, I bought a high-temperature resistant butter spray online to re-oil it this time.
The demolition process will not be posted. There will already be videos on the forum. The screwdriver with six flowers in the inner part removes the guard plate under the glove box of the passenger seat,
I cleaned it once last year, and it didn’t feel too dirty, but the butter was missing. There are balance clips on the upper and lower corners of the fan blades. The estimated function is that when rotating, it will not cause loss of roundness and abnormal resonance.
here’s another one
Inner Liuhua unscrews these screws
Push it up.
Remove.
First, spray the fan leaves with Mr. Wei Meng, then place them there. After 10 minutes, rinse them with clean water, then dip the small toothbrush with detergent and water, brush them roughly, and finally wipe them clean with a cotton swab. Then rinse it with clean water, taking care not to let water flow into the motor.
I sacrificed a tea towel and moistened it with my wife’s clean towel, but found that there were hairs everywhere when I scratched it.
Butter spray,
Not cheap…
A little sprayed on the fan leaf. I don’t know if it will work.
Cleaning this fan leaf is quite annoying, be patient. If you don’t have a plan, you can’t buy a new one and change it on. Use it first if you can handle it.
To add, the screws of the guard plate and the screws of the blower are all internally hexagonal, the head of the T25. The head of the T20 can also be disassembled and used.
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