Inspecting cylinders with a light probe - AR01.00-P-0200GZS (ML63 AMG)

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ENGINE 156 in MODEL 164, 251

Fig 1: Inspecting Cylinders With Light Probe (Engine 156)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

	Remove/install
	Risk of death caused by contact with parts conducting high voltages.	Do not touch parts which conduct high voltages. Persons who wear electronic implants (e.g. heart pacemakers) should never perform any work on the ignition system	AS15.10-Z-0001-01A
	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of death caused by vehicle slipping or toppling off the lifting platform.	Align vehicle between columns of lifting platform and position four support plates at lifting platform support points specified by vehicle manufacturer.	AS00.00-Z-0010-01A
1	Turn key in ignition switch to position "0".	On vehicles with code 889, Keyless Go: Press keyless go start/stop button repeatedly until ignition is switched off Remove keyless go transmitter card or transmitter key from vehicle and store outside of transmission range (min. 2 m)
2	Open engine hood and raise to vertical position	Model 164	AR88.40-P-1000GZ
		Model 251	AR88.40-P-1000RT
3	Remove partition wall between wheelhouses	Model 251	AR62.30-P-2400RT
4	Remove air filter housing		AR09.10-P-1150GZS
5	Remove ignition coils		AR15.12-P-2003GZS
6	Remove spark plugs		AR15.12-P-1010GZS
7	Rotate engine at crankshaft center bolt in engine's direction of rotation until piston of cylinder to be inspected is at bottom dead center	Socket	Figure
8	Connect cylinder inspection lamp (1) and insert flexible endoscope (test probe) (2) on cylinder inspection lamp into cylinder to be inspected through tapped bore of spark plug	Cylinder inspection light	*WH58.30-Z-1014-05A
		Flexible endoscope	*WH58.30-Z-1006-05A
		Flexible endoscope	*WH58.30-Z-1007-05A
	Checking
9	Check cylinder wall, piston crown and valves	If there is "scoring" (wear to the cylinder), the cylinder wall has become rough and the honing marks are no longer visible. In case of doubt, remove cylinder head:	AR01.30-P-5800GZS
	General information on inspecting cylinder walls		AH01.00-P-0300-01AMG
10	Inspect the other cylinders in the same way
11	Install in the reverse order

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

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

COMMERCIALLY AVAILABLE TOOLS

Number	Designation
WH58.30-Z-1006-05A	Flexible endoscope, package contents 1 (complete unit), Company Richard Wolf GmbH D-75438 Knittlingen Company Karl Storz GmbH D-78532 Tuttlingen
WH58.30-Z-1007-05A	Flexible endoscope package contents 2 (for workshops which already have an approved endoscope from the Wolf or Storz company), Company Richard Wolf GmbH D-75438 Knittlingen Company Karl Storz GmbH D-78532 Tuttlingen
WH58.30-Z-1014-05A	Cylinder inspection equipment