P0136
O2 Sensor Circuit Bank 1 Sensor 2
1999-2000 BMW 528iT E39 2.8L I6 🇩🇪
Moderate SeverityPowertrain
Description
General malfunction in the downstream O2 sensor circuit for Bank 1.
Symptoms
- Check Engine Light
- Failed emissions test
- Reduced catalyst monitoring
Common Causes
- Faulty downstream O2 sensor
- Wiring damage
- Exhaust leak after catalyst
Diagnostic Steps
- Test O2 sensor voltage
- Inspect wiring
- Check for exhaust leaks after cat
Repair Notes
Replace downstream O2 sensor.
Related Codes
Other Powertrain Codes
- P0001Fuel Volume Regulator Control Circuit/Open
- P0002Fuel Volume Regulator Control Circuit Range/Performance
- P0003Fuel Volume Regulator Control Circuit Low
- P0004Fuel Volume Regulator Control Circuit High
- P0010Intake Camshaft Position Actuator Circuit/Open Bank 1
- P0011Intake Camshaft Position Timing Over-Advanced Bank 1
- P0012Intake Camshaft Position Timing Over-Retarded Bank 1
- P0013Exhaust Camshaft Position Actuator Circuit/Open Bank 1
- P0014Exhaust Camshaft Position Timing Over-Advanced Bank 1
- P0015Exhaust Camshaft Position Timing Over-Retarded Bank 1
P0136 on Other Vehicles
Common Questions
What does code P0136 mean on a 1999-2000 BMW 528iT E39?
P0136 stands for "O2 Sensor Circuit Bank 1 Sensor 2". General malfunction in the downstream O2 sensor circuit for Bank 1.
What are the symptoms of P0136 on a BMW 528iT E39?
Common symptoms of P0136 include: Check Engine Light, Failed emissions test, Reduced catalyst monitoring.
What causes P0136 on a 1999-2000 BMW 528iT E39?
Common causes of P0136 include: Faulty downstream O2 sensor, Wiring damage, Exhaust leak after catalyst.