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Home >> Mercedes Benz >> 2020 >> E350 Base >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Mixture Formation - 213 Chassis 3 Of 5 >> Testing & Repair >> Remove/Install Oxygen Sensor Downstream Of Catalytic Converter - >> Remove/Install Oxygen Sensor Downstream Of Catalytic Converter - AR07.04-P-0085MRH

Remove/Install Oxygen Sensor Downstream Of Catalytic Converter - AR07.04-P-0085MRH

Engine 264 in model 213, 238, 257 

Fig 1: Oxygen Sensor Downstream Of Catalytic Converter Components Location - Engine 264 In Model 213
G13744458WARNINGREMOVINGINSTALLINGINSTALLATION IMPORTANTTORQUE SPECIFICATIONSPECIAL TOOLSPECIAL TOOLSPECIAL TOOLREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSREFER TO SELF-DIAGNOSTIC SYSTEMSWARNINGCourtesy of MERCEDES-BENZ USA
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 hazard area.
AS49.00-Z-0001-01A
  Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
  Notes on avoiding damage through contamination and foreign objects   AH00.00-P-5000-01A
  Note on calculation of tightening torque when using insertion or socket tools with various effective lengths   AH00.00-P-0015-01CW
REMOVINGINSTALLING Remove/install     
1 Remove upper engine cover.   AR01.10-P-2405MRH
2 Release electrical connector (1) and disconnect.    
3 Unclip lambda sensor electric line downstream of the catalytic converter (G3/1) out of the brackets (2).    
4 Remove the oxygen sensor downstream of the catalytic converter (G3/1) and seal the threaded hole in the catalytic converter using a suitable stop plug. INSTALLATION IMPORTANT Coat thread with hot lubrication paste.  
    TORQUE SPECIFICATION Oxygen sensor downstream of catalytic converter *BA14.00-P-1002-02C 
    Paste, hot lubrication 1 kg, DBL 6879.20 *BR00.45-Z-1005-06A 
    SPECIAL TOOL Record plug Fig 4
    SPECIAL TOOL Box wrench bit Fig 2
5 Seal lambda sensor downstream of the catalytic converter (G3/1) with a protective cover. When reusing the lambda sensor downstream of catalytic converter (G3/1).  
    SPECIAL TOOL Set of protective caps Fig 3
6 Install in the reverse order.    
7 Read out and delete fault memory.    
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 264 in model 238 AD00.00-P-2000-06LWO
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 264 in model 257 AD00.00-P-2000-06FR
REFER TO SELF-DIAGNOSTIC SYSTEMS   Engine 264 in model 213 AD00.00-P-2000-04B
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
8 Perform an engine test run; check the engine for proper operation and the exhaust system for leaks.    
OXYGEN SENSOR

Number Designation Engine 264
BA14.00-P-1002-02C Oxygen sensor downstream of catalytic converter Nm 50
Fig 2: Identifying Box Wrench Bit (000 589 71 03 00)
G07694428Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Set Of Protective Caps (001 589 00 91 00)
G12079434Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Record Plug (129 589 00 91 00)
G11065549Courtesy of MERCEDES-BENZ USA
REPAIR MATERIALS

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