Installing Lambda oxygen sensor

NOTE: TECHNICAL INFORMATION
Grease the threads of new oxygen sensors thinly and evenly.
For oxygen sensors that are reused, the following should be observed:
Thinly and evenly grease the oxygen sensor on the thread only. Do not clean the part of the oxygen sensor that does not protrude into the exhaust line (sensor ceramics) and do not grease.
For additional information see: OVERVIEW OF CONSUMABLES (BMW PARTS CATALOGUE) .

Prepare the oxygen sensor.
Do not damage the sensor ceramics.
1. Thread
2. Sensor ceramics

Lightly and evenly grease the thread (1) of the oxygen sensor monitor.

CONSUMABLE - BRAKE BLOCK PASTE DESCRIPTION

Brake block paste * TU = Trade Unit. TU numbers cannot be ordered! For invoicing purposes only.	3 g, Bag	83192158851
	100 g, Tube	83192158852
	5 g, TU*	83230140233

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: The cable of the Lambda oxygen sensor is black. The installation location of the Lambda oxygen sensor is in front of the catalytic converter.

Screw in the Lambda oxygen sensor (1) and tighten with the special tool 0 491 074 (11 7 020) .

TIGHTENING TORQUES SPECIFICATION

Lambda oxygen sensor on catalytic converter
M18X1.5	tightening torque	50 Nm

Courtesy of BMW OF NORTH AMERICA, INC.

Feed in the heat protection (4) in direction of arrow and install.
Replace the cable ties (3).
Parts: Cable tie
Guide in cable tie (3) and install.
Guide the line of the Lambda oxygen sensor (1) into the bracket (2) and install.

Courtesy of BMW OF NORTH AMERICA, INC.
Feed in the connector (1) in direction of the arrow and install.
Ensure that the locking mechanism (2) engages audibly.

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Connect and lock the connector (1).
Make sure the connector (1) engages audibly.

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Follow-up work

Refer to INSTALLING THE RESONATOR WITH THE TOP CLEAN AIR PIPE .
Refer to INSTALLING INTAKE SILENCER HOUSING .
Refer to INSTALLING ACOUSTIC COVER .