mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

AR14.00-P-5303PV Remove/Install Oxygen Sensor|Page 1729 > < AR14.00-P-5303PV Remove/Install Oxygen Sensor
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Remove/Install

1

Remove engine compartment paneling

2

Press left O2 sensor connectors, upstream TWC (G3/3x1) and right OO22 sensor connectors, upstream TWC (G3/4x1) out of brackets and
disconnect

3

Remove left O2 sensor, upstream TWC (G3/3) and right O2 sensor, upstream TWC (G3/4)

NOTE:  Installation: Coat thread of O2 sensors with heat-resistant lubricant.

-

Box wrench bit: See Special Tools below.

-

Sensor to exhaust pipe/exhaust = 55 Nm

4

Press left O2 sensor connectors, downstream TWC (G3/5x1) and right O2 sensor connector, downstream TWC (G3/6x1) out of brackets and
disconnect

5

Remove left O2 sensors, downstream TWC (G3/5) and right O2 sensor, downstream TWC (G3/6)

NOTE:  Installation: Coat thread of O2 sensors with heat-resistant lubricant.

-

Box wrench bit: See Special Tools below.

-

Sensor to exhaust pipe/exhaust = 55 Nm

6

Install in the reverse order sensor manifold

Special Tools

Ring Wrench Socket, P/N # 000 589 71 03 00

AR14.00-P-5303PV Remove/Install Oxygen Sensor|Page 1729 > < AR14.00-P-5303PV Remove/Install Oxygen Sensor