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) .

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

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TIGHTENING TORQUES SPECIFICATION

Lambda control sensor
M18x1.5	Tightening torque	50 Nm

Guide in heat protection (2) in direction of arrow and install.
Make sure that the heat protection (2) is against the stop (3).
Replace the cable ties (1).
Parts: Cable tie
Guide in cable tie (1) and install.

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Feed in bracket (2) of positive battery cable and position.
Fasten cable (1) in clamps (arrows).

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CAUTION:
Improper routing of the positive battery cable.
Risk of short circuits!
- Route the positive battery cable without abrasions and do not trap.
Feed in and position the holder (3) of the positive battery cable.

Tighten the screws (arrows).

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TIGHTENING TORQUES SPECIFICATION

Holder, positive battery cable to cylinder head cover
6X18	Tightening torque	6 Nm

Secure the positive battery cable (1) at the clamps (2).
Connect connectors (1) and lock.
The connector (1) must engage audibly.

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Feed in the connector (4) in arrow direction to the carrier plate and install.
The locks (3) must engage audibly.
Feed in the cable (2) to the clamp (1).
Connect and lock the clamp (1).

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Follow-up work

Refer to INSTALLING ACOUSTIC COVER AT REAR .
Refer to INSTALLING ACOUSTIC COVER .
Refer to INSTALLING THE FRONT HOOD SEAL AT THE REAR .