Remove/install catalytic converter temperature sensor

AR07.04-D-0004S

9.3.10

ENGINES 642.898 /993 in MODEL 906
Temperature sensor upstream of catalytic converter

D07.04-1189-08

Shown on engine 642.993

1 Electrical connector

B19/18 Temperature sensor upstream of TWC [KAT]

2 Catalytic convert exhaust pipe

 	Remove/install
 Danger!	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
1	Expose electrical connector (1) and disconnect	 Installation: Ensure that electric wiring harness is routed correctly and replace cable tie.
2	Unscrew union nut on temperature sensor upstream of CAT (B19/18) from catalytic converter exhaust pipe (2)		*BA07.04-N-1001-01G
3	Pull temperature sensor upstream CAT (B19/18) out catalytic converter exhaust pipe (2)	 Installation: Apply paste to thread of temperature sensor upstream of CAT (B19/18).
		Paste	*BR00.45-Z-1005-06A
4	Install in the reverse order
 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
5	Test run engine and check leaktightness of exhaust system in area of temperature sensor upstream of diesel particulate filter (B19/18)

 Sensors

Number	Designation		Engine 642.898	Engine 642.993


BA07.04-N-1001-01G	Temperature sensor to catalytic converter	Nm	45	45

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