P0137 on BMW M3
Factory diagnostic protocol and troubleshooting wire for fault code P0137 specifically for the BMW M3 (2021–2026, 3.0L High-Revving Twin-Turbo Inline-6 (S58 473HP–523HP Competition)).
1. Symptoms of P0137 on BMW M3
When the Engine Control Module (ECM/PCM) on your BMW M3 (3.0L High-Revving Twin-Turbo Inline-6 (S58 473HP–523HP Competition)) logs fault code P0137, drivers commonly observe:
2. Most Likely Causes on BMW M3
Historical warranty claims and technical repair bulletins for BMW M3 point to the following failure distribution:
3. Step-by-Step DIY Repair Guide for BMW M3
Listen for exhaust ticking or black soot around flex pipe, flanges, and sensor bungs before the catalytic converter. on the BMW M3 equipped with 3.0L High-Revving Twin-Turbo Inline-6 (S58 473HP–523HP Competition).
Monitor B1S2 voltage. Snap the throttle to enrich mixture; voltage should briefly spike above 0.8V. If it remains 0.0V–0.1V, sensor is defective or shorted. on the BMW M3 equipped with 3.0L High-Revving Twin-Turbo Inline-6 (S58 473HP–523HP Competition).
Unplug harness, remove old sensor with 7/8 socket, install replacement sensor and plug firmly. on the BMW M3 equipped with 3.0L High-Revving Twin-Turbo Inline-6 (S58 473HP–523HP Competition).
Clear DTCs and verify B1S2 holds steady between 0.45V and 0.75V during steady highway cruising. on the BMW M3 equipped with 3.0L High-Revving Twin-Turbo Inline-6 (S58 473HP–523HP Competition).
Equipment for Diagnosing BMW M3 (P0137)
BMW M3 OEM Replacement Sensor
Direct-fit replacement assembly engineered to OEM tolerances for BMW M3.
AstroAI Auto-Ranging Digital Multimeter
Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.
BlueDriver Bluetooth Pro OBDII Scan Tool
Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.
Other Common Fault Codes on BMW M3
Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the BMW M3:
4. BMW M3 P0137 FAQs
What causes code P0137 to trigger on a BMW M3?
On the BMW M3 (3.0L High-Revving Twin-Turbo Inline-6 (S58 473HP–523HP Competition)), P0137 is most frequently caused by Exhaust leak upstream of or directly at the Sensor 2 bung letting in fresh air or Faulty downstream oxygen sensor.
Where is the OBD-II port located on my BMW M3?
On the BMW M3, the 16-pin DLC diagnostic connector is located Driver A-pillar base kick panel behind spring-loaded door. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.
Can I safely drive my BMW M3 with code P0137?
Yes. Vehicle is fully drivable, but Check Engine Light will remain illuminated. Given that P0137 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.