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Remove/install knock sensors - AR15.12-P-2184QB

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ENGINE 272.920 in MODELS 203.052 /252 /752 

ENGINE 272.940 in MODELS 203.054 /254, 209.354 /454 

ENGINE 272.960 in MODELS 203.056 /256 /756, 209.356 /456 

ENGINE 272.970 in MODELS 203.087 /287 

ENGINE 272.941 in MODELS 203.092 /292 

ENGINE 273 in MODEL 209 

Fig 1: Identifying Knock Sensors Remove/Install Components - Engine 272.920/940/941
G04734092
REMOVINGINSTALLING Remove/install    
DANGER Risk of injury  caused by fingers being pinched or crushed  when removing, installing or aligning hoods, doors, trunk lids, tailgates or sliding roof. Keep body parts and limbs well clear of moving parts. AS00.00-Z-0011-01A
NOTES Notes on avoiding damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
1 Turn key in ignition switch to position "0".    
2 Open engine hood and raise to vertical position Model 203 AR88.40-P-1000P
    Model 209 AR88.40-P-1000Q
3 Remove air filter housing   AR09.10-P-1150QB
4 Remove resonance intake manifold   AR09.20-P-1961QB
5 Disconnect electrical connector at right knock sensor 1 (A16/1) or left knock sensor 2 (A16/2)    
6 Remove bolt (1) and take out right knock sensor 1 (A16/1) or left knock sensor 2 (A16/2) TORQUE SPECIFICATION *BA15.10-P-1001-02B 
7 Install in the reverse order    
8 Read out fault memory STAR DIAGNOSIS diagnosis system *WH58.30-Z-1048-13A 
REFER TO SELF-DIAGNOSTIC SYSTEMS Connect STAR DIAGNOSIS and read out fault memory   AD00.00-P-2000-04A
TORQUE SPECIFICATION KNOCK SENSORS

Number Designation Engine 272 Engine 273
BA15.10-P-1001-02B Bolt, knock sensor to crankcase Nm 20 20
COMMERCIALLY AVAILABLE TOOLS

Number Designation
WH58.30-Z-1048-13A STAR DIAGNOSIS diagnosis system, Compact Passenger Car 6511 1801 00