P247B – BMW DTC

BMW DTC P247B – Exhaust Gas Temperature Out of Range (Bank 1 Sensor 4)

DTC P247B meaning on BMW

The DTC P247B code on a BMW indicates that the exhaust gas temperature sensor for Bank 1 Sensor 4 is reading a value that is out of the normal operating range. This sensor is responsible for monitoring the temperature of the exhaust gases leaving the engine.

BMW DTC P247B symptoms

Symptoms of a DTC P247B code on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Increased fuel consumption
• Engine running rough

BMW DTC P247B causes

Common causes of a DTC P247B code on a BMW include:

• Failed exhaust gas temperature sensor
• Wiring or connector issues
• Exhaust system leaks
• Software or calibration issues

BMW DTC P247B seriousness

While a DTC P247B code may not cause immediate drivability issues, it is important to address it promptly to prevent potential damage to the engine or emissions system. Ignoring the code could lead to more severe problems over time.

How to diagnose DTC P247B on BMW

To diagnose a DTC P247B code on a BMW, a mechanic would typically perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and freeze frame data
2. Inspect the exhaust gas temperature sensor and its wiring for any visible damage
3. Check for exhaust leaks or other issues in the exhaust system
4. Perform a sensor resistance test to determine if the sensor is functioning correctly

How to fix DTC P247B on BMW

To fix a DTC P247B code on a BMW, the following steps may be taken:

1. Replace the exhaust gas temperature sensor if it is found to be faulty
2. Repair any damaged wiring or connectors associated with the sensor
3. Address any exhaust leaks or system issues that may be affecting sensor readings
4. Update software or perform calibration adjustments as needed

How to erase DTC P247B on BMW

After the underlying issue causing the DTC P247B code on a BMW has been resolved, the code can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the vehicle’s onboard computer to monitor the system for any new faults.

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

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