P107F – BMW DTC

BMW DTC P107F – H2-Rail Pressure Regulator Circuit/Open

DTC P107F meaning on BMW

DTC P107F on a BMW refers to the H2-Rail Pressure Regulator Circuit/Open fault. This diagnostic trouble code indicates that there is an open circuit or a malfunction in the H2-Rail pressure regulator circuit.

BMW DTC P107F symptoms

Symptoms of DTC P107F on a BMW may include:

• Check Engine Light (MIL) illuminated
• Reduced engine performance
• Engine stalling or rough idling
• Decreased fuel efficiency

BMW DTC P107F causes

Common causes of DTC P107F on a BMW include:

• Faulty H2-Rail pressure regulator
• Open or short circuit in the wiring harness
• Corrosion or poor connections in the circuit
• Defective engine control module (ECM)

BMW DTC P107F seriousness

DTC P107F should not be ignored as it can lead to engine performance issues and potential drivability problems. It is recommended to address this fault promptly to prevent further damage to the vehicle.

How to diagnose DTC P107F on BMW

To diagnose DTC P107F on a BMW, you can follow these steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the H2-Rail pressure regulator and its wiring for any visible damage or corrosion
3. Check the circuit for continuity and proper voltage using a multimeter
4. Inspect the ECM for any signs of damage or malfunction

How to fix DTC P107F on BMW

To fix DTC P107F on a BMW, you can try the following:

1. Replace the faulty H2-Rail pressure regulator
2. Repair any open or short circuits in the wiring harness
3. Clean or repair any corroded connectors in the circuit
4. If necessary, replace the engine control module (ECM)

How to erase DTC P107F on BMW

To erase DTC P107F on a BMW, you can use a diagnostic scanner to clear the fault code from the ECM’s memory. After fixing the underlying issue, you can reset the code to turn off the Check Engine Light.

Recommended tools & DTC Scanners for BMW

Best Diagnostic App for modern BMWs: BimmerLink

Recommended Bluetooth adapter for Bimmerlink: OBDLink CX

Cable adapter for Bimmerlink: Enet Cable USB Type C

For older BMWs we recommend: Autel AutoLink AL319 (2024 version)

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.