Remove/install oxygen sensor upstream of catalytic converter

AR07.04-P-0086MRO

Remove/install oxygen sensor upstream of catalytic converter

10.08.2020

Engine

264 in model 463

2

Bracket

3

Electrical connector

G3/2

Oxygen sensor upstream of catalytic converter

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

 

Remove/install

1

Remove upper engine cover.



AP01.10-P-2405-01I

 Installation: Only install upper engine cover after engine test run and leak test.

2

Release and disconnect electrical connector (3).

3

Remove electrical connector (3) from bracket.

4

Unhook electric line of lambda sensor upstream of catalytic converter (G3/2) from holder (2).

5

Unscrew lambda sensor upstream of catalytic converter (G3/2) and seal threaded hole in catalytic converter with suitable stop plug.

 Installation: Coat thread with hot lubrication paste.

 Oxygen sensor upstream of catalytic converter

*BA14.00-P-1001-02C

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Record plug

*129589009100

 Box wrench bit

*000589710300

6

Seal lambda sensor upstream of the catalytic converter (G3/2) with protective cover.

When the oxgyen sensor upstream of catalytic converter (G3/2) is reused.

 Set of protective caps

*001589009100

7

Install in the reverse order.

8

Connect vehicle diagnosis system, read out fault memory and clear if necessary.



Engine 264 in model 463
as of model year 2020

AD00.00-P-2000-04B

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

9

Perform engine test run; check engine for proper operation and check exhaust system for leak tightness.

 Oxygen sensor

Number

Designation

Engine 264

BA14.00-P-1001-02C

Oxygen sensor upstream of catalytic converter

Nm

50

Repair materials

Number

Designation

Order number

BR00.45-Z-1005-06A

Paste, hot lubrication 1 kg, DBL 6879.20

A 000 989 76 51