Cleaning 1988 300e w124 Front ABS Sensors 

I show How I cleaned and reinstall the front ABS Sensors.
The car would make a Moaning Sound when applying the brakes.
Tried to show the Moan at the Beginning of the clip.
It moaned 4 times in the clip. After Cleaning it solved my problem.
(Screws were Loosened before Filming)
6MM ALLEN KEY was used to Loosen & Remove Screws