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

Engine 260 in model 118, 177, 247 

Fig 1: Oxygen Sensor Downstream Of Catalytic Converter Components Location - Engine 260 In Model 177 (Shown Up To Model Year 2021)

Courtesy of MERCEDES-BENZ USA

Shown on model 177 up to model year 2021 

Shown as of model year 2022 

Fig 2: Oxygen Sensor Downstream Of Catalytic Converter Components Location - Engine 260 In Model 177 (Shown As Of Model Year 2022)

Courtesy of MERCEDES-BENZ USA

	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
	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 o the danger zone.	AS49.00-Z-0001-01A
	Risk of injury  caused by scraping or cutting body parts on sharp vehicle parts	Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels.	AS00.00-Z-0017-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
Notice	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
	Remove/install
1	Remove bottom engine compartment lining.	Engine 260 in model 118, 177, 247 with code M016 (Uprated engine)	AR61.20-P-1105MFR
		Engine 260 in model 118, 177, 247 except code M016 (Uprated engine) :  Only install lower engine compartment lining after leak test.	AR61.20-P-1105MFA
2	Unclip electrical connector (1) from holder (2).
3	Release and disconnect electrical connection (1) for oxygen sensor downstream of catalytic converter (G3/1).
4	Remove lambda sensor downstream of catalytic converter (G3/1).
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
		:  Coat thread of lambda sensor downstream of catalytic converter (G3/1) with heat-resistant lubricating paste.
		Paste, hot lubrication 1 kg, DBL 6879.20	*BR00.45-Z-1005-06A
		Oxygen sensor downstream of catalytic converter	*BA14.00-P-1004-01A
		Box wrench bit	Fig 3
		Record plug	Fig 4
5	Install in the reverse order.
6	Read out and delete fault memory.
			AD00.00-P-2000-06MFA
	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
7	Perform engine test run; check engine for proper operation and check exhaust system for leak tightness.

Fig 3: Identifying Box Wrench Bit (000 589 71 03 00)

Courtesy of MERCEDES-BENZ USA

Fig 4: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA