Remove/Install Ignition Coils Of Right Cylinder Bank - AR15.12-P-2009SC

Engine 176 in model 223

Courtesy of MERCEDES-BENZ USA

	Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)	Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.	AS00.00-Z-0035-01A
	Risk of injury . Skin or eye injuries may result when handling hot or glowing objects.	Wear protective gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on avoiding damage to ignition system		AH15.10-P-0002-01V
	Remove/install
1	Remove right air filter housing.		AR09.10-P-1152SC
2	Release and disconnect electrical connector (1) of ignition coil (T4/1).
3	Release and disconnect electrical connector (7) of ignition coil (T4/2).
4	Remove holder (2).
5	Unclip retaining clips (9) and place electrical wiring harness of ignition coil (T4/1) and ignition coil (T4/2) to one side.	Do not crush or kink or subject lines to tension. This would lead to damage to the lines and can impair their function. Dismantling tool	Fig 1
6	Remove screws (4).	Bolt, ignition coil to cylinder head cover	*BA15.10-P-1001-04D
7	Pull out ignition coil (T4/1) upwards and remove.	Ignition coil (T4/1) and spark plug connectors form a unit and can only removed together.
8	Unclip the cable duct (3) and place it to one side.	Dismantling tool	Fig 1
9	Cut cable tie (5).	: Replace cable tie (5).
10	Remove vacuum line (6) from vacuum pump, seal openings with suitable stop plugs and place vacuum line (6) to one side.	Record plug	Fig 2
11	Remove screws (8).	Bolt, ignition coil to cylinder head cover	*BA15.10-P-1001-04D
12	Pull out ignition coil (T4/2) upwards and remove.	Ignition coil (T4/2) and spark plug connectors form a unit and can only removed together.
	Check
13	Check ignition coil (T4/1) and ignition coil (T4/2) for damage.	If they will be reused. If damage is present: ↓ Replace ignition coil (T4/1) and/or ignition coil (T4/2) with spark plug connectors.
14	Approx. Apply about 1 g of spark plug connector grease to the spark plug connector.	Apply spark plug connector grease to reduce pull-off and attachment forces Spark plug connectors will otherwise be damaged the next time they are removed. Spark plug connector grease 35 g	*BR00.45-Z-1102-06A
15	Install in the reverse order.
	Check
	Risk of burn injuries , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.	Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone.	AS49.00-Z-0001-01A
	Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.	Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.	AS00.00-Z-0005-01A
16	Conduct engine test run while checking for proper operation of the engine.