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Mercedes-Benz Offers Noise Fix

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Clean area “A” thoroughly.

This bulletin applies to 2017-2019 Mercedes-Benz vehicles. The customer may complain about a single throttle lift-off clunking noise from the side shaft when moving off. 

The noise is heard once in each instance when changing direction of travel. 

If the complaint is eliminated by experimentally loosening the outboard collar nut by one turn, the concern may be due to cracking of the microweld between the wheel bearing inner race and the joint housing of the side shaft. 

Clean and coat the contact surface of the side shaft wheel bearing with Molykote paint. Remove the side shafts. Clean the contact surface free of dust and grease. Coat the contact surface with Molykote and leave to dry for one hour in removed condition. 

Reinstall the side shafts. 

Note: Before applying the low friction Molykote paint, stir or shake it thoroughly.

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 Apply Molykote to area “A” and allow to dry for one hour before reinstalling.

 

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