Remove/Install Oxygen Sensor - AR14.00-P-5303SR

ENGINE 281 in MODEL 453 

Shown on ENGINE 281.920 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

	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
	Remove/install
1	Remove subwoofer	Engine 281 in model 453 with code 556 (Radio 56A MM2012 with DAB and PREMIUM SOUND) Engine 281 in model 453 with code 557 (RADIO 57A MM2012 without DAB) Engine 281 in model 453 with code 561 (Radio 61C - PREMIUM without DAB with PREMIUM SOUND) Engine 281 in model 453 with code 562 (Radio 62C - R0 with DAB and PREMIUM SOUND)
2	Remove covering over engine
3	Disconnect electrical connection for oxygen sensor downstream of CAT (G3/1x1) or electrical connection for oxygen sensor upstream of CAT (G3/2x1) and remove from bracket
	Risk of death  caused by vehicle slipping or toppling off of the lifting platform.	Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.	AS00.00-Z-0010-01A
4	Lift vehicle on vehicle lift	For removal of the oxygen sensor upstream of CAT (G3/2).
5	Unhook rear muffler (4) from left rubber mount and swivel to the side	For removal of the oxygen sensor upstream of CAT (G3/2). Carefully swivel the rear muffler (4). Otherwise, the flexible pipe (4.1) could be damaged.
6	Unhook electrical wiring harness (1) or electrical wiring harness (2) from heat shield (3)
		Oxygen sensor upstream of catalytic converter	*BA14.00-P-1001-02A
		Oxygen sensor downstream of catalytic converter	*BA14.00-P-1002-02A
		Paste, hot lubrication 1 kg, DBL 6879.20	*BR00.45-Z-1005-06A
		Socket	Fig 1
8	Install in the reverse order

Fig 1: Identifying Socket (111 589 03 09 00)

Courtesy of MERCEDES-BENZ USA