Remove/install O2 sensor

AR07.04-P-0080OLD

Remove/install O2 sensor

4.9.15

Engine

651 in model 205, 253

Shown on Engine 651, type 205 without code ME04 (Mild hybrid drive)

1

Electrical connector

G3/2

Oxygen sensor upstream of catalytic converter

2

Retaining clip

 

Remove/install

1.1

Remove air filter housing

Engine 651 in model 205, 253

AR09.10-P-1150OLD

1.2

Remove air filter housing with CDI control unit

Engine 651 in model 205.012/212

AR09.10-P-1150OLD

2

Release and disconnect electrical connection (1)

3

Unhook electrical wiring harness for the oxygen sensor upstream of CAT (G3/2) from retaining clip (2)

Engine 651 in model 205 (except 205.012/212)

4

Remove oxygen sensor upstream of catalytic converter (G3/2)

 Installation: Coat thread of the oxygen sensor upstream of catalytic converter (G3/2) with heat-resistant lubricant.

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 O2 sensor to catalytic converter

*BA14.00-P-1001-01F

5

Install in the reverse order

6

Connect diagnostic system, read out fault memory and delete if necessary



AD00.00-P-2000-04B



Check

 Danger !

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

7

Carry out an engine test run and check exhaust system for leaktightness

 O2 sensor

Number

Designation

Engine 651

BA14.00-P-1001-01F

O2 sensor to 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