Remove/install temperature sensor - AR07.04-P-0070TC

ENGINE 648.961 in MODEL 211.026 /226 with CODE (474) Particulate filter Temperature sensor upstream of TWC (in catalytic converter)

ENGINE 648.961 in MODEL 211.023 /223 Temperature sensor upstream of TWC [KAT] (in catalytic converter)

Fig 1: Identifying Temperature Sensor Components - Temperature Sensor Upstream Of TWC

	Remove/install
	Risk of injury to skin and eyes caused by handling hot or glowing objects.	Wear safety gloves, protective clothing and safety glasses, if necessary.	AS00.00-Z-0002-01A
	Risk of injury caused by fingers being jammed or pinched when removing, installing or aligning hoods, doors, trunk lid/ rear-end door or sliding roof.	When moving components, ensure that no body parts or limbs are within the operating range of moving parts.	AS00.00-Z-0011-01A
1	Open engine hood		AR88.40-P-1000T
2	Remove trim panel of cylinder head cover		AR01.20-P-5014-02C
		Bolt connecting cylinder head cover trim panel to cylinder head	*BA01.20-P-1002-01G
		Bolt connecting trim panel to charge air distribution pipe	*BA01.20-P-1003-01G
3	Remove air filter housing		AR09.10-P-1150T
4	Detach heat shield above turbocharger		AR49.00-P-1000-01T
5	Remove electrical connector (1) of temperature sensor upstream of TWC [KAT] (B19/7) from bracket at exhaust gas recirculation cooler and disconnect
6	Expose electrical line to temperature sensor upstream of TWC [KAT] (B19/7)	Installation: Install new tie straps.
7	Remove temperature sensor upstream of TWC [KAT] (B19/7)	Installation: Coat thread of temperature (B19/7) sensor upstream of TWC [KAT] (B19/7) with heat-resistant lubricant.
			*BA07.04-P-1001-01G
		Paste	*BR00.45-Z-1005-06A
8	Install in the reverse order
	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 engine	Secure vehicle to prevent it from moving. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
9	Conduct engine test run and inspect exhaust system for leaks

CRANKCASE VENTILATION, CYLINDER HEAD COVER

Number	Designation		Engine 648
BA01.20-P-1002-01G	Bolt connecting trim panel of cylinder head cover to cylinder head	Nm	9
BA01.20-P-1003-01G	Bolt connecting cover to charge air distribution pipe.	Nm	9

SENSORS

Number	Designation		Engine 648.961 without code 494
BA07.04-P-1001-01G	Temperature sensor to catalytic converter	Nm	45

REPAIR MATERIALS

Number	Designation	Order number
BR00.45-Z-1005-06A	Paste	A 000 989 76 51