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Remove/Install Knock Sensor - AR15.12-P-2185SRA

ENGINE 281.910 in MODEL 453 

G12094570Courtesy of MERCEDES-BENZ USA
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVING Remove     
1 Drain coolant   AR20.00-P-1142SR
2 Remove charge air distributor   AR09.41-P-1310SR
3 Remove screw/bolts (2)    
4 Remove coolant line (1) from crankcase and remove from working area    
5 Disconnect electrical connection (3)    
6 Mark installation position of knock sensor (A16)    
7 Remove screw/bolt (4) and remove knock sensor (A16) from crankcase    
INSTALLING Install     
8 Transfer marking of the installation position to the new part When installing new a knock sensor (A16).  
9 Lay knock sensor (A16) on the crankcase and tighten with screw/bolt (4) IMPORTANT The contact surface between the crankcase and the knock sensor (A16) must be clean and flat.
Observe the marking for the installation position.
TORQUE SPECIFICATION Screw/bolt, knock sensor to crankcase
*BA15.12-P-1001-01G 
10 Connect Electrical connection (3)    
11 Insert coolant line (1) in crankcase    
12 Screw in screw/bolts (2) TORQUE SPECIFICATION Bolt, coolant line to crankcase *BA20.10-P-1012-01J 
13 Install charge air distributor   AR09.41-P-1310SR
14 Pour in coolant and bleed cooling system   AR20.00-P-1142SR
15
REFER TO SELF-DIAGNOSTIC SYSTEMS
Connect diagnostic unit, read out fault memory When installing new a knock sensor (A16). AD00.00-P-2000-06SR
ELECTRONIC IGNITION WITH VARIABLE CHARACTERISTICS

Number Designation ENGINE 281
BA15.12-P-1001-01G Screw/bolt, knock sensor to crankcase Nm 20
COOLANT PUMP, COOLANT THERMOSTAT

Number Designation ENGINE 281
BA20.10-P-1012-01J Bolt, coolant line to crankcase Nm 10