Notes On Threaded Connections With Aluminum Screws/Bolts - AH00.00-P-0006-01RM
WARNING: This page is about a different car, the 2023 Mercedes-Benz C300, 2022 Mercedes-Benz C300, 2021 Mercedes-Benz C300, 2020 Mercedes-Benz C300, and 2019 Mercedes-Benz C300. However, it is still accessible from the selected car via links, so may be relevant.
Model all (4xWD, BUS, CAR, Light transporter)
Aluminum screws/bolts are allowed to be used once only and must then be replaced by new ones.
The mating thread must be cleaned before a new aluminum screw/bolt is screwed in.
Otherwise the threaded connection may work loose.