Remove/install oxygen sensor upstream of catalytic converter

AR07.04-P-0086MRD

Remove/install oxygen sensor upstream of catalytic converter

04.03.2020

Engine

274.9 in model 213

Engine

274.9 in model 238

1

Oxygen sensor

2

Electrical connector

 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

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

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 air filter housing.

AR09.10-P-1150MRD

2

Release and disconnect the electrical connector (2).

3

Unclip electric line of the lambda sensor (1) from the brackets.

4

Remove lambda sensor (1) and seal threaded hole in the catalytic converter using a suitable stop plug.

 Installation: Coat thread with hot lubrication paste.

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Oxygen sensor upstream of catalytic converter

*BA14.00-P-1005-01A

 Record plug

*129589009100

 Box wrench bit

*000589710300

5

Cover lambda sensor (1) with protective cover.

When reusing the oxygen sensor (1).

 Set of protective caps

*001589009100

6

Install in the reverse order.

7

Read out and delete fault memory.



Engine 274.9 in model 213

AD00.00-P-2000-04B



Engine 274.9 in model 238

AD00.00-P-2000-06LWO

 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

8

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

 Oxygen sensor

Number

Designation

Engine 274

BA14.00-P-1005-01A

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