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| Unplug the connector of the Lambda probe and lay bare the wire. |
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| Identification of connectors: Black for Lambda probe -G39- and Lambda probe heater -Z19-; brown for Lambda probe after catalytic converter -G130- and Lambda probe 1 heater after catalytic converter -Z29-. |
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| Use a tool from the ring spanner set for Lambda probe -3337- to screw out the Lambda probe. |
| Pay attention to the following on installation: |
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| New Lambda probes are coated with assembly paste which is not to be allowed to come into contact with the slits in the probe body. |
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| Only the thread of an old Lambda probe is to be coated with the high-temperature paste. This paste must not be allowed to come into contact with the slits in the probe body. High-temperature paste → Parts catalogue |
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| When installing, the Lambda probe wire must always be reattached at the same locations to prevent it from coming into contact with the exhaust pipe. |
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| Tightening torque: 55 Nm. |
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