Check hydraulic valve clearance compensating elements - AR05.00-P-2010EL

WARNING: This page does not describe the selected car, but rather 33 other vehicles, including the 2016 Mercedes-Benz E63 S AMG, 2016 Mercedes-Benz E400, 2016 Mercedes-Benz E350, 2016 Mercedes-Benz E300, and 2016 Mercedes-Benz E250. However, it is still accessible from the selected car via links, so may be relevant.

ENGINE 157, 276, 278 in MODEL 212, 218

Fig 1: Checking Hydraulic Valve Clearance

Courtesy of MERCEDES-BENZ USA

	Check
1	Check engine oil level; correct if necessary
		ENGINE 157 in MODEL 212, 218	AP18.00-P-0101EWG
		ENGINE 276 in MODEL 212, 218	AP18.00-P-0101CWZ
		ENGINE 278 in MODEL 212, 218	AP18.00-P-0101EW
2	Start engine, bring to normal operating temperature and switch off	Coolant temperature 60 to 80°C
3	Remove cylinder head covers	Engine 276.8 - left cylinder head cover	AR01.20-P-5013ELS
		Engine 276.8 - right cylinder head cover	AR01.20-P-5012ELS
		Engine 276.9 - right cylinder head cover	AR01.20-P-5012EEL
		Engine 276.9 - left cylinder head cover	AR01.20-P-5013EEL
		Engine 157, 278 - right cylinder head cover	AR01.20-P-5012ELB
		Engine 157, 278 - left cylinder head cover	AR01.20-P-5013ELB
4	Rotate engine at crankshaft until the cam on the valve clearance compensating element to be checked is at the base circle	Do not turn engine against direction of engine rotation. If the roller-Model cam follower (1) does not touch the cam: ↓
		Replace compensating element.	AR05.00-P-2011EL
5	Compress compensating element, to do this depress the roller-Model cam follower (1) using a suitable drift (01)	Do not use a steel tool. Damage can occur to the surfaces can occur otherwise. The compensating element should not be pressed together with the normal force of the hand but only very slowly when applying a strong pressure. Check the pressure oil supply to the cylinder head if more than one compensating element is defective. If compensating element drops too strongly: ↓
		Replace compensating element.	AR05.00-P-2011EL
6	Install in the reverse order
	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
7	Carry out an engine test run and check engine for leaktightness