Replace the front oxygen sensor

WARNING: Hot surfaces.
Risk of burning!

Perform all work only on components that have cooled down.

Preliminary work

Refer to REMOVING DESIGN COVER .
Refer to REMOVING INTAKE SILENCER HOUSING .
Refer to REMOVING THE ACOUSTIC COVER .
Refer to REMOVING THE COVER IN THE LEFT ENGINE COMPARTMENT .
Refer to REMOVING THE RIGHT COVER IN THE ENGINE COMPARTMENT .
Refer to REMOVING TRAILING LINK AT TENSION STRUT TOWER .
Refer to REMOVING THE SOUND INSULATION ON THE BULKHEAD UPPER PART AT THE CENTER .
Refer to REMOVING CORROSION PROTECTION COVER .

Installing Lambda oxygen sensor

Preparing 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.
See: 11 00... OVERVIEW OF CONSUMABLE IN APPLICABLE BMW PARTS CATALOGUE

NOTE: TECHNICAL INFORMATION
See: 11 00... OVERVIEW OF CONSUMABLE IN APPLICABLE BMW PARTS CATALOGUE .

Prepare the oxygen sensor.

Do not damage the sensor ceramics.

(1) = Thread

(2) = Sensor ceramics

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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 the control sensor (1) in and tighten it with the special tool 0 491 074 (11 7 020) .

Courtesy of BMW OF NORTH AMERICA, INC.

TIGHTENING TORQUE SPECIFICATIONS

Lambda control sensor
M18x1.5	tightening torque	50 Nm

Attach both the oxygen sensor cables (1) in the marked areas.

Courtesy of BMW OF NORTH AMERICA, INC.
Connect the connector (1) and clip into the carrier plate.

Courtesy of BMW OF NORTH AMERICA, INC.