Remove/install the oxygen sensor - AR14.00-P-5303R (SL500, SL55 AMG)

ENGINE 113, 112 in MODEL 230

Fig 1: Identifying Left O2 Sensor Upstream Of TWC And Right O2 Sensor Upstream Of TWC

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Left O2 Sensor Downstream Of TWC And Right O2 Sensor Downstream Of TWC

Courtesy of MERCEDES-BENZ USA

Fig 3: Identifying Connector For Left/Right O2 Sensor Upstream/Downstream TWC

Courtesy of MERCEDES-BENZ USA

Fig. item etc.	Work instructions
	Remove engine compartment paneling	Only rear part.	AR61.20-P-1105R
G3/3x1, G3/4x1	Connector for O2 left and right sensor upstream TWC
G3/5x1, G3/6x1	Connector for O2 left and right sensor downstream TWC
G3/3, G3/4	Left/right O2 sensor upstream of TWC	Installation: Coat thread of O2 sensors with heat-resistant lubricant.	*BR00.45-Z-1005-06A
			*BA14.00-P-1001-01A
			Fig 4
G3/5, G3/6	Left/right O2 sensor downstream of TWC	Installation: Coat thread of O2 sensors with heat-resistant lubricant.	*BR00.45-Z-1005-06A
			*BA14.00-P-1001-01A
			Fig 4

O2 SENSOR

Number	Designation		Engines 112.910/911/912/913/914/915/916/920/921/922/923/940/941/942/943/944/945/946/947/949/953/955/960/961/970/972/973/975	Engines 113.940/941/942/943/944/945/946/948/960/961/962/963/964/965/966/967/968/980/981/982/984/986/992/993/995
BA14.00-P-1001-01A	O₂ sensor on exhaust pipe/ exhaust manifold	Nm	45	55

REPAIR MATERIALS

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

Fig 4: Identifying Ring Wrench Socket (000 589 71 03 00)

Courtesy of MERCEDES-BENZ USA