Remove/install heated O2 sensor · ar0752d5303uv · Mercedes-Benz WIS

AR07.52-D-5303UV

Remove/install heated O2 sensor

9.3.10

ENGINE 272.979 in MODEL 906
O2 sensor on the right

D07.52-0022-06

1 Catalytic converter

2 Electrical connector (right O2 sensor downstream of TWC)

3 Electrical connector (right O2 sensor in TWC)

G3/6 Right O2 sensor downstream of TWC

G3/18 Right O2 sensor in TWC

 	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	Lift/jack up vehicle		AR00.60-D-1000H
2	Expose electrical line for right O2 sensor downstream of TWC (G3/6) or right O2 sensor in TWC (G3/18)	 Installation: Replace cable ties. Observe installation of lines of electrical line involved.
3	Unclip and disconnect electrical connector (2) or electrical connector (3) out of retaining clamp on transmission
4	Remove right O2 sensor downstream of TWC (G3/6) or right O2 sensor in TWC (G3/18) out of the catalytic converter (1)	 Installation: Coat thread with heat-resistant lubricant.
			*BA14.00-N-1001-01C
			*000589710300
		Paste	*BR00.45-Z-1005-06A
5	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
6	Perform test run engine and check catalytic converter (1) in the area of the O2 sensor downstream of TWC (G3/6) and right O2 sensor in TWC (G3/18) for leaks

O2 sensor

Number	Designation		Engine 272.979 in model 906


BA14.00-N-1001-01C	O2 sensor to catalytic converter	Nm	45

Box wrench bit

000 589 71 03 00

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

ar0060d1000h Lift/jack up vehicle
as0000z000201a Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.
as0000z000501a 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.