12 14 600 Removing/replacing knock sensors (N55 Hybrid)

WARNING: This page does not describe the selected car, but rather 50 other vehicles, including the 2016 BMW M5, 2016 BMW ActiveHybrid 5, 2016 BMW 550i xDrive, 2016 BMW 550i, and 2016 BMW 535i xDrive. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: High-voltage system - danger to life!

The following points must be strictly observed prior to starting work:

Observe SAFETY INFORMATION for handling hybrid cars.

Necessary preliminary tasks:

Read out the fault memory of the DME control unit.
Switch off ignition.
Remove HIGH PRESSURE PUMP .

Recycling:

Fuel escapes when fuel lines are detached.

Catch and dispose of escaping fuel.

Observe country-specific waste disposal regulations.

Unlock connector (1) and remove.

Fig 1: Identifying Connector

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Release screws on both knock sensors (1) and remove knock sensors (1).

Tightening torque 13 62 3AZ .

Fig 2: Locating Knock Sensors

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Installation note:

Clean contact surface of knock sensors on engine block.

Fig 3: Cleaning Contact Surface Of Knock Sensors On Engine Block

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NOTE: Reassemble the vehicle.

Check stored fault messages.

Clear diagnostic fault entries from fault memory.