11 78 513 Replacing both lambda oxygen control sensors (N52K): Notes
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. 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.
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.
Lambda control sensor, cylinder nos. 1 to 3:
NOTE:
The lambda control sensor on the exhaust manifold of cylinder nos. 1 to 3 is accessible from above. The exhaust system does not have to be removed.
Lambda control sensor, cylinder nos. 1 to 3: