Remove/Install Catalytic Converter Temperature Sensor - AR07.04-P-0004MFH

Engine 260 in model 118 

as of model year 2023 

Engine 260 in model 177, 247 

as of model year 2022 

Fig 1: Temperature Sensor Upstream Of Gasoline Particulate Filter Components Location - Engine 260 In Model 247 As Of Model Year 2022

Courtesy of MERCEDES-BENZ USA

	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 danger zone.	AS49.00-Z-0001-01A
	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 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	Information on preventing damage to electronic components due to electrostatic discharge		AH54.00-P-0001-01A
Notice	Notes on avoiding damage through contamination and foreign objects		AH00.00-P-5000-01A
	Notes on safety-relevant components		AH00.00-Z-0019-01A
	Remove/install
1	Remove air filter housing.		AR09.10-P-1150MFC
2	Release and disconnect electrical connector (1).
3	Unclip the electric line (2).	Ensure electric line (2) is correctly seated.
4	Remove temperature sensor upstream of gasoline particulate filter (B163/4).
	Note on calculation of tightening torque when using insertion or socket tools with various effective lengths		AH00.00-P-0015-01CW
		Coat thread of the temperature sensor upstream of gasoline particulate filter (B163/4) with heat-resistant lubricating paste.
		NOx temperature sensor to exhaust pipe	*BA07.04-P-1004-01N
		Paste, hot lubrication 1 kg, DBL 6879.20	*BR00.45-Z-1005-06A
		Box wrench bit	Fig 2
		Record plug	Fig 3
5	Install in the reverse order.
	Check
6	Read out and delete fault memory.	If temperature sensor upstream of gasoline particulate filter (B163/4) was replaced.
			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 and check exhaust system for leak tightness.

Fig 2: Identifying Box Wrench Bit (000 589 69 03 00)

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Record Plug (129 589 00 91 00)

Courtesy of MERCEDES-BENZ USA