11 78 513 Replacing both lambda oxygen control sensors (N52K): Notes
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2011 BMW 328xi, 2011 BMW 328i, 2011 BMW 323i, 2010 BMW 328xi, and 2010 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.
WARNING:
Risk of burning!
Work should only be carried out on an exhaust system that has cooled down.
Installation note:
The threads of new oxygen control sensors are already coated with Never Seez Compound (refer to BMW Parts Department).
If a oxygen control sensor is to be reused, apply a thin and even coating of Never Seez compound to the thread only.
The part of the lambda control sensor which projects into the exhaust system branch (sensor ceramics) must not be cleaned and not coated with lubricant.