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Home >> Mercedes Benz >> 2021 >> CLS450 Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Timing - 257 Chassis >> Testing & Repair >> Remove/Install Timing Chain Upper Slide Rail - AR05.10-P-8421MSA

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

Engine 256.9 in model 213, 238, 257, 290 

MODIFICATION NOTES

26.02.2020 Bearing pin on crankcase cylinder head   BA05.10-P-1004-01MRT
Fig 1: Timing Chain Upper Slide Rail Component Location - Engine 256.9 In Model 257
G14548096Courtesy of MERCEDES-BENZ USA
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
REMOVINGINSTALLING Remove/install     
1 Remove the camshaft positioner of the intake camshaft.   AR05.20-P-7206MSA 
2 Remove bearing pin (5). TORQUE SPECIFICATION Bearing pin on crankcase cylinder head *BA05.10-P-1004-01MRT 
3 Detach top chain slide rail (6) from bearing pin (7) upward and remove.    
INSPECT Check     
4 Check top chain slide rail (6) for wear and damage. If the top chain slide rail (6) has problems, ↓
replace top chain slide rail (6).
 
5 Install in the reverse order.    
CAMSHAFT POSITIONER, TIMING CHAIN DRIVE

Number Designation Engine 256.9
BA05.10-P-1004-01MRT Bearing pin on crankcase cylinder head Nm 20