Preheated oxygen sensor before catalytic converter (136a)
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Preheated oxygen sensor before catalytic converter (136a)
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1.
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Unplug the connector to the oxygen sensor and detach it from the holder.
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2.
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Note the position of the cable and clips/cable ties before removing the cable.
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3.
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Undo the oxygen sensor with a 22 mm dog-leg spanner or similar tool.
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1.
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Apply Molykote 1000 (part no. 30 20 971) or equivalent to the oxygen sensor threads.
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2.
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Fit the oxygen sensor and tighten it with a 22 mm dog-leg spanner or similar tool.
Tightening torque 50 Nm (37 lbf ft)
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3.
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Carefully thread the cable back to the oxygen sensor connector.
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Important
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The cables must not be twisted. Twisted cables exposed to vibration can break.
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The oxygen sensor is sensitive to impact and jolting and must be handled with care.
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4.
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Plug in the oxygen sensor connector.
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