Replace spark plugs - AP15.10-P-1580SZ

ENGINES 275.953 in MODEL 216.376, 221.176 

ENGINES 275.982 in MODEL 216.379, 221.179 

Fig 1: Identifying Spark Plugs And ECI Ignition Module

Courtesy of MERCEDES-BENZ USA

	Remove/install and replacing
	Risk of death  due to contact with high-voltage conductive parts	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
	Notes on avoiding damage to ignition system		AH15.10-P-0002-01L
	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
1	Switch off ignition
2	Remove ECI [energy controlled ignition], ignition module, right cylinder bank (N92/1) and ECI ignition module, left cylinder bank (N92/2)
	Remove/install ignition coil module		AR15.12-P-1100LA
3	Remove spark plugs (R4) from the cylinder heads using spark plug wrench	Spark plug to cylinder head	*BA15.10-P-1001-01C
		Spark plug wrench	*112589010900
4	Install in the reverse order

Fig 2: Identifying Spark Plug Wrench (112 589 01 09 00)

Courtesy of MERCEDES-BENZ USA