MAF sensor cleaning and replacing PCV valve on Mercedes Benz ML 350

This video shows how to replace PCV valve and removing the air intake duct. As shown in video, customer complaint about check engine light and engine vibration and RPM fluctuation. As a first step replacing PCV valve due to oil leaks into the air duct and cleaning MAF sensor, also resetting MAF sensor values using Autel Ultra. Using genuine PCV valve.
Tools need for the job,
E10 socket.
T30 socket.
10 mm socket.
Flat head screwdriver.
Extension.
Ratchet.
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