Front oxygen sensor (B235R, B205L/R)
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Front oxygen sensor (B235R, B205L/R)
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1.
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Remove the top engine cover
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2.
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Detach the oxygen sensor connector from the holder.
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3.
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Remove the bypass pipe and heat shield.
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4.
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Cut the cable tie for the oxygen sensor and pull out the cables
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Important
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The leads must not be twisted. The oxygen sensor is highly sensitive to knocks and blows and must be handled with care.
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5.
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Release the oxygen sensor from the turbo outlet pipe
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1.
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Coat the oxygen sensor's threads with Molycote 1000 (30 20 971) to prevent binding.
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Important
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The oxygen sensor is sensitive to knocks and blows and must be handled with care. It is important to ensure that the connection between it and the nipple is gastight.
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Important
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Chemicals such as contact spray and grease must not come into contact with the oxygen sensor connectors.
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2.
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Fit the oxygen sensor.
Tightening torque: 55 Nm (41 lbf ft)
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3.
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Run the cable forward and plug in the connector.
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4.
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Secure the cable to the water pipe with a cable tie.
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5.
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Fit the heat shield and bypass pipe.
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6.
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Fit the top engine cover.
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