Inspect cylinders with a light probe - AR01.00-P-0200SX

ENGINE 273, 275 in MODEL 216 

ENGINE 272, 273, 275 in MODEL 221 

Shown on engine 272 

Fig 1: Inspecting Cylinder

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Remove spark plugs
	Replace spark plugs	Engine 272, 273	AP15.10-P-1580SX
		Engine 275	AP15.10-P-1580SZ
2	Rotate engine at crankshaft center bolt in the engine's direction of rotation until piston of cylinder to be inspected is at bottom dead center		*001589650900
3	Connect up cylinder illumination unit (1) and insert flexible endoscope (2) through spark plug bore into cylinder to be checked
	Checking
4	Inspect cylinder walls	If condition of the cylinder barrel is not clearly recognizable, the cylinder head must be removed. Absolutely observe General information for checking the cylinder barrel before  removal: General information on inspecting cylinder walls	AH01.00-P-0300-01VA
5	Check other cylinders in the same way
6	Install in the reverse order

Fig 2: Identifying Wrench Socket (001 589 65 09 00)

Courtesy of MERCEDES-BENZ USA