2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 162
instructions for system test.
3. If the system test fails to produce a result then
4. Visual inspection of wiring and plugs
5. Electrical check of wiring
6. Replace wiring or plugs as indicated
7. Check exhaust system forward of downstream (post-cat)
O2 sensor for leaks
8. Replace upstream (pre-cat) O2 sensor
9. Replace downstream (post-cat) O2 sensor
10. Replace control module
Fault effect and breakdown warning
Driver information
Warning light:
MIL ON
Service instruction
none
2C39
2C39 – P0133
Information saved in
DME
Fault code
2C39 – P0133
Fault text
Oxygen sensor before catalytic converter, dynamics
Fault description
O2 Sensor Circuit Slow Response (Bank 1 Sensor 1)
Condition for fault identification
Test condition:
O2 sensor dynamic test
No fault memories
Drive at 50 – 80 km/h and at moderate engine speed.
Terminal condition: Terminal 15, engine on
Voltage condition:
none
Condition for fault memory entry
Reduced dynamic response from sensor
Action in service
Replace the suspect O2 sensor
If this fails to resolve the issue, inspect the wiring.
Fault effect and breakdown warning
