Remove/Install Timing Chain Upper Slide Rail - AR05.10-P-8421MRI

WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.

Engine 264 in model 205, 253

Fig 1: Timing Chain Upper Slide Rail Components Location - Engine 264 In Model 253

Courtesy of MERCEDES-BENZ USA

	Risk of injury caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
	Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil	Wear protective gloves, protective clothing and safety glasses. Do not fill engine oil into beverage containers.	AS18.00-Z-0001-01A
	Remove/install
1	Remove cylinder head cover.		AR01.20-P-5014MRI
2	Remove upper slide rail (5) from cylinder head cover.
	Check
3	Check upper slide rail (5) for wear and damage.	If damage or wear is present. ↓ Install new top slide rail (5).
4	Install in the reverse order.