Remove/install oxygen sensor downstream of catalytic converter

AR07.04-P-0085MFC

Remove/install oxygen sensor downstream of catalytic converter

03.11.2019

Engine

260 in model 118, 177, 247

Modification notes

30.10.2019

Document completely revised.

Shown on model 177

1

Electrical connector

G3/1

Oxygen sensor downstream of catalytic converter

2

Bracket

 Danger

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer.

AS00.00-Z-0010-01A

 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

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

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

 

Remove/install

1

Remove bottom engine compartment paneling.

AR61.20-P-1105MFA

 Installation: Only install lower engine compartment paneling after leak test.

2

Unclip electrical connector (1) from holder (2).

3

Release and disconnect electrical connection (1) for oxygen sensor downstream of catalytic converter (G3/1).

4

Remove oxygen sensor downstream of catalytic converter (G3/1).

 Installation: Coat thread of lambda sensor downstream of catalytic converter (G3/1) with heat-resistant lubricating paste.

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Oxygen sensor downstream of catalytic converter

*BA14.00-P-1004-01A

 Socket

*111589030900

5

Seal threaded hole in catalytic converter with suitable stop plug.

 Record plug

*129589009100

6

Cover the tip of the oxygen sensor downstream of the catalytic converter(G3/1) with a protective cover.

When reusing the lambda sensor downstream of catalytic converter (G3/1).

 Set of protective caps

*001589009100

7

Install in the reverse order.

8

Read out and delete fault memory.



AD00.00-P-2000-06MFA

 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.

10

Install lower engine compartment lining.

AR61.20-P-1105MFA

 Oxygen sensor

Number

Designation

Engine 260

BA14.00-P-1004-01A

Oxygen sensor downstream 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