Remove/install right oxygen sensor upstream of catalytic converter

AR07.04-P-0083MND

Remove/install right oxygen sensor upstream of catalytic converter

23.11.2016

Engine

276.8 in model 213, 238

2

Right catalytic converter

6

Oxygen sensor upstream of catalytic converter

 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

 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

1

Switch off ignition and store transmitter key outside of transmission range (min. 2 m)

2

Remove right catalytic converter (2)

AR49.10-P-5503MND

3

Remove right oxygen sensor upstream of catalytic converter (6)

 Box wrench bit

*000589710300

4

Cover the sensor tip of the oxygen sensor upstream of CAT (6) with a protective cover

When reusing the oxygen sensor upstream of CAT (6).

 Set of protective caps

*001589009100

5

Seal threaded hole of oxygen sensor upstream of CAT (6)

 Commercially available devices/tools
Oxygen sensor screw plug threaded hole M18x1,5 mm



Install

6

Remove the protective cover on the sensor tip of the oxygen sensor downstream of CAT (6)

When reusing the oxygen sensor upstream of CAT (6).

 Set of protective caps

*001589009100

7

Coat thread on oxygen sensor downstream of CAT (6) with heat-resistant lubricant

When reusing the oxygen sensor upstream of CAT (6).

Paste, hot lubrication 1 kg, DBL 6879.20

*BR00.45-Z-1005-06A

8

Remove screw plug from threaded hole of oxygen sensor downstream of CAT (6)

 Commercially available devices/tools
Oxygen sensor screw plug threaded hole M18x1,5 mm

9

Screw in oxygen sensor upstream of catalytic converter (/6)

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

AH00.00-P-0015-01CW

 Oxygen sensor to catalytic converter

*BA14.00-P-1002-01A

 Box wrench bit

*000589710300

10

Install right catalytic converter (2)

AR49.10-P-5503MND



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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

11

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

12

Read out and erase fault memory



Engine 276.8 in model 238

AD00.00-P-2000-06LWO



Engine 276.8 in model 213

AD00.00-P-2000-04B

 Oxygen sensor

Number

Designation

Engine 276

BA14.00-P-1002-01A

Oxygen 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