Remove/install heated O2 sensor · ar0752p5303rx · Mercedes-Benz WIS

AR07.52-P-5303RX

Remove/install heated O2 sensor

9.3.10

ENGINE 272, 273 in MODEL 230

P07.04-2444-08

G3/3 Left O2 sensor upstream of TWC [KAT]

G3/3x1 Left O2 sensor upstream of TWC [KAT] connector

G3/4 Right O2 sensor upstream of TWC [KAT]

G3/4x1 Right O2 sensor upstream of TWC [KAT] connector

G3/6 Right O2 sensor downstream of TWC [KAT]

G3/6x1 Right O2 sensor downstream of TWC [KAT] connector

G3/5 Left O2 sensor downstream of TWC [KAT]

G3/5x1 Left O2 sensor downstream of TWC [KAT] connector

 	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	Turn key in ignition switch to position "0".	 Vehicles with Keyless Go, code 889: Press Keyless Go start/stop button repeatedly until ignition is switched off.
2	Remove bottom engine compartment paneling		AR61.20-P-1105R
3	Unclip electrical connector and electrical feed line for corresponding O2 sensor out of retaining clamps on the transmission
4	Disconnect electrical connector for corresponding O2 sensor
5	Unscrew corresponding O2 sensor out of the catalytic converter	 Installation: Coat the thread with heat-resistant lubricant.
			*BA14.00-P-1002-01A
			*000589710300
		Paste	*BR00.45-Z-1005-06A
6	Install in the reverse order
7	Read out fault memory	STAR DIAGNOSIS diagnosis system
	Connect STAR DIAGNOSIS and read out fault memory		AD00.00-P-2000-04A
 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 running engine	Secure vehicle to prevent it from moving by itself. Wear closed and snug-fitting work clothes. Do not grasp hot or rotating parts.	AS00.00-Z-0005-01A
8	Conduct engine test run and inspect exhaust system for leaks

O2 sensor

Number	Designation		Engine 272	Engine 273


BA14.00-P-1002-01A	O2 sensor to catalytic converter	Nm	50	50

000 589 71 03 00

Ring wrench socket

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

ad0000p200004a
ad0000p200004a
ar6120p1105r
as0000z000201a Fare for personskade på hud og øjne ved håndtering af varme eller glødende genstande
as0000z000501a Fare for ulykke ved automatisk igangsætning når motoren kører. Fare for personskade på grund af knusning og forbrænding, hvis der arbejdes mens motoren startes eller kører