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Remove/install NOx sensor - AR07.70-P-0001EL

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ENGINES 276 in MODEL 212, 218 

Shown on left NOx storage catalytic converter 

Fig 1: NOx Sensor Remove/Install Components
G09974709Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
DANGER Risk of death  caused by vehicle slipping or toppling off of the lifting platform. Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer. AS00.00-Z-0010-01A
1 Lift vehicle on vehicle lift.    
2 Detach underfloor paneling in the area of the shield (4)    
3 Disconnect electrical line (3) on NOx sensor control unit (N37/5 or N37/6)    
4 Unclip electrical line (3) at mount shield (4)    
5 Remove NOx sensor (N37/5b1 or N37/6b1) from NOx storage catalytic converter (1) NOTES Only place tool on hexagon since the NOx sensor (N37/5b1 or N37/6b1) will be damaged otherwise.
INSTALLATION IMPORTANT Coat thread on NOx sensor (N37/5b1 or N37/6b1) with paste.
 
TORQUE SPECIFICATION *BA07.04-P-1001-01E 
Paste, hot lubrication 1 kg, DB supply specification 6879.20 *BR00.45-Z-1005-06A 
6 Install in the reverse order    
7 Read out fault memory with STAR DIAGNOSIS and erase if necessary Only when replacing AD00.00-P-2000-04A
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.
AS00.00-Z-0005-01A
8 Carry out an engine test run and test exhaust system for leaks in the process    
NOx SENSOR

Number Designation Engine 276
BA07.04-P-1001-01E NOx sensor on exhaust pipe Nm 60
REPAIR MATERIALS

Number Designation Order number
BR00.45-Z-1005-06A Paste, hot lubrication 1 kg, DB supply specification 6879.20 A 000 989 76 51