Remove/install oxygen sensor upstream of catalytic converter

AR07.04-S-0086PB

Remove/install oxygen sensor upstream of catalytic converter

13.03.2018

Model

470 with engine 200

1

Electrical connector

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

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

 

Remove/install

1

Disconnect electrical connection (1)

2

Remove lambda sensor upstream of catalytic converter (2) and close off threaded hole in the catalytic converter using suitable stop plug

 Installation: Apply heat-resistant lubricating paste to threads of lambda sensor upstream of catalytic converter (2).

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

 Oxygen sensor upstream of catalytic converter to exhaust manifold

*BA14.00-N-1001-02PB

 Socket

*111589030900

 Record plug

*129589009100

3

Cover sensor tip of lambda sensor upstream of catalytic converter (2) with a clean protective cover

When reusing the lambda sensor upstream of catalytic converter (2).

 Set of protective caps

*001589009100

4

Install in the reverse order



Check

 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

5

Check leaktightness of exhaust system when engine is running

 Visual inspection only.

 Oxygen sensor

Number

Designation

Engine 200 in model 470

BA14.00-N-1001-02PB

Oxygen sensor upstream of catalytic converter to exhaust manifold

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