13 62 662 Replace the Nitrogen Oxide Sensor After the SCR Catalytic Converter With SCR)

13 62 662 Replace The Nitrogen Oxide Sensor After The SCR Catalytic Converter (M57T2 With SCR)







Special tools required:
- 11 7 030







IMPORTANT:
Ensure adequate ventilation in the workbay.
Avoid skin contact (wear gloves).
Avoid eye contact (safety goggles).
Urea/water mixture can escape when components carrying urea/water mixture are released. Have a collecting vessel ready.
Observe country-specific waste disposal regulations.







Installation note:
- Remove rear underbody protection.

IMPORTANT:
Risk of burning.
Only perform this repair work on an engine that has cooled down.







Release nitrogen oxide sensor (1) with special tool 11 7 030.

Installation note:
Tightening torque 16 19 10AZ.

Threads of new nitrogen oxide sensors are coated with Never-Seez compound.
If a nitrogen oxide sensor is reused, apply a thin coating of Never-Seez compound to thread only.
Do not clean the sensor section which protrudes into the exhaust branch and ensure that it avoids all contact with lubricants.
Unclip nitrogen oxide sensor wiring (2).







Release screws (3). Remove reinforcement carrier.
Release thermal protection (1) (2) and slide until nitrogen oxide sensor holder is accessible.







Release screws (1).
Remove nitrogen oxide sensor holder (2).







Disconnect connector connection (1).
Unclip wiring from nitrogen oxide sensor holder (3).
Unscrew nuts (2).
Disconnect nitrogen oxide sensor (4) from holder (3).







After completing repair work:
Use the BMW Diagnosis System to perform the SCR adjustment.

Refer to:
- Service function
-> SCR systems
-> Carry out activation and adjustments