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

ENGINE 111, 271, 602.982 /983, 604, 605, 606 / 

Fig 1: Inspecting Cylinders With Light Probe (1 Of 3)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Engine 602.982/983 

Fig 2: Inspecting Cylinders With Light Probe (2 Of 3)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Inspecting Cylinders With Light Probe (3 Of 3)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/Install
1.1	Remove spark plugs
		Engines 111.920 /921 /940 /941 /942 /943 /944 /945 /946 /947 /952 /956 /957 /958 /960 /961 /970 /973 /974 /975 /977 /982 /983	AP15.10-P-1580CA
		ENGINE 111.951/ 955/ 981	AP15.10-P-1580PR
		Engines 271.921/ 940/ 941/ 942/ 946/ 948/ 955/ 956	AP15.10-P-1580P
		Engine 271.950	AP15.10-P-1580CW
		Engine 271.944	AP15.10-P-1580V
1.2	Remove injection nozzles	Engine 602.982, engine 602.983 in model 461	AR07.13-P-6830C
1.3	Remove glow plugs	Engine 605.911
		Engine 606.910
		Engines 604, 605 except 605.911, 606 except 606.910	AR15.20-P-4111H
2.1	Remove prechamber	Engines 604, 605, 606	AR01.30-P-5402HA
3	Position piston for cylinder to be inspected to BDC	Crank engine at crankshaft, if necessary.
4	Connect cylinder inspection equipment (05) and insert inspection probe (06) of inspection equipment into cylinder to be checked	Endoscope, see GOTIS http://gotis.aftersales.daimlerchrysler.com
5	Withdraw ignition key	So that unintentional activation of the starter and damage to engine is excluded.
	Checking
6	Inspect cylinder walls	Distinguish between "visible streaks" and "scoring". "Visible streaks"  are usually streaks (e.g. from the ring joint) which are as much as 3 mm in width, and not roughened, and are therefore not critical. Honing marks are still visible. In case of 'scoring'  (cylinder wear), the cylinder wall is roughened and honing marks are no longer visible. In case of doubt, remove cylinder head:
7	Conduct inspection of other cylinders in the same way
8	Install in the reverse order