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Remove/Install Ignition Coils Of Left Cylinder Bank - AR15.12-P-2008SC

Engine 176 in model 223 

G16190300Courtesy of MERCEDES-BENZ USA
DANGER 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
WARNING 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 
REMOVINGINSTALLING Remove/install     
1 Remove left air filter housing.   AR09.10-P-1151SC
2 Release and disconnect electrical connector (1) of ignition coil (T4/3).    
3 Remove screws (2). TORQUE SPECIFICATION Bolt, ignition coil to cylinder head cover *BA15.10-P-1001-04D 
4 Pull out ignition coil (T4/3) upwards and remove. IMPORTANT Ignition coil (T4/3) and spark plug connectors form a unit and can only removed together.  
5 Release and disconnect electrical connector (3) of ignition coil (T4/4).    
6 Remove screws (4). TORQUE SPECIFICATION Bolt, ignition coil to cylinder head cover *BA15.10-P-1001-04D 
7 Pull out ignition coil (T4/4) upwards and remove. IMPORTANT Ignition coil (T4/4) and spark plug connectors form a unit and can only removed together.  
INSPECT Check     
8 Check ignition coil (T4/3) and ignition coil (T4/4) for damage. If they will be reused.
If damage is present:

Replace ignition coil (T4/3) and/or ignition coil (T4/4) with spark plug connectors.
 
9 Approx. Apply about 1 g of spark plug connector grease to the spark plug connector. NOTES
Apply spark plug connector grease to reduce pull-off and attachment forces
Otherwise the spark plug connectors will be damaged upon renewed removal.
 
    Spark plug connector grease 35 g *BR00.45-Z-1102-06A 
10 Install in the reverse order.    
INSPECT Check     
WARNING 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
WARNING 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
11 Conduct engine test run while checking for proper operation of the engine.    
IGNITION COIL

Number Designation Engine 176
BA15.10-P-1001-04D Bolt, ignition coil to cylinder head cover Nm 9
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1102-06A Spark plug connector grease 35 g A 002 989 08 08