11 78 510 Replacing oxygen sensor (M62 / S62): Installation
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
The threads of new oxygen sensors are already coated with Never Seez Compound.
If an oxygen sensor is used again, apply a thin and event coat of Never Seez Compound to the thread only.
Do not clean the oxygen sensor section jutting into the exhaust line and do not bring it into contact with lubricant.
Protect (mask) oxygen sensor when applying underseal.
Note cable routing of oxygen sensor.