11 78 513 Replacing both lambda oxygen control sensors (N52K)

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2013 BMW 328xi, 2013 BMW 328i, 2012 BMW 328xi, 2012 BMW 328i, and 2011 BMW 328xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

11 4 260

WARNING: Scalding hazard!

Work should only be carried out on an exhaust system that has cooled down.

Installation:

The threads of new lambda control sensors are already coated with Never Seez Compound.

If a lambda 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. 4 to 6:

Necessary preliminary tasks:

Remove Exhaust System.

Disconnect plug connection on lambda control sensor (1).

Release lambda control sensor (1) on exhaust manifold of cylinder nos. 4 to 6 with special tool 11 4 260.

Fig 1: Special Tool (11 4 260) An d Lambda Control Sensor

Courtesy of BMW OF NORTH AMERICA, INC.

All:

Installation:

Cable color of lambda control sensor, cylinders nos. 1 to 3 = black.

Cable color of lambda control sensor, cylinders nos. 4 to 6 = grey.

For tightening torque refer to 11 78 1AZ in 11 78 EXHAUST GAS CONTROL, LAMBDA CONTROL SENSOR / LAMBDA MONITOR SENSOR .

Assemble engine.

Check function of DME.