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Home >> Mercedes Benz >> 2018 >> E300 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Timing - 213 Chassis 1 Of 2 >> Testing & Repair >> Check Hydraulic Valve Play Compensation Elements >> Check Hydraulic Valve Play Compensation Elements - AR05.00-P-2012MRD

Check Hydraulic Valve Play Compensation Elements - AR05.00-P-2012MRD

Engine 274.9 in model 213 

Engine 274.9 in model 238 

G13743876Courtesy of MERCEDES-BENZ USA
WARNING 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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
CAUTION 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
WARNING Risk of injury  . Skin or eye injuries may result when handling hot or glowing objects. Wear protective gloves, protective clothing and safety glasses, if necessary. AS00.00-Z-0002-01A
REMOVINGINSTALLING Remove/install     
1 Check and correct oil level    
REFER TO MAINTENANCE     AP18.00-P-1811MP
2 Warm up engine to normal operating temperature    
3 Switch off ignition and store transmitter key outside of transmission range (min. 2 m)    
4 Remove cylinder head cover INSTALLATION IMPORTANT Only install upper engine cover after the leak test. AR01.20-P-5014MRD
5 Turn engine at center bolt on crankshaft until the cams of the camshaft on the valve clearance compensating element to be checked point upwards NOTES
Do not turn engine against direction of engine rotation.
Otherwise engine damage can occur.
SPECIAL TOOL Socket wrench bit
If the roller-type cam follower (1) does not touch the cam.

Replace valve clearance compensating element.
Fig 1
      AR05.00-P-2013MRD 
INSPECT Check     
6 Compress valve clearance compensating element; to do this depress the roller-type cam follower (1) using a suitable drift (01) NOTES
Do not use a steel tool.
The surface will be damaged otherwise.
 
    IMPORTANT The valve clearance compensating element should not be pressed together with the normal force of the hand but only very slowly when applying a strong pressure.
If the valve clearance compensating element drops too strongly.

Replace valve clearance compensating element.
If a number of valve clearance compensating elements are defective.

Check compress oil supply of cylinder head.
AR05.00-P-2013MRD 
      AR18.00-P-1250MRD
7 Install in the reverse order    
8 Perform an engine test run and check engine for proper operation and leaktightness    
9 Install upper engine cover    
Fig 1: Identifying Socket Wrench Bit (001 589 65 09 00)
G13743877Courtesy of MERCEDES-BENZ USA