P246A – BMW DTC

BMW DTC P246A – Exhaust Gas Temperature Sensor Circuit Intermittent/Erratic (Bank 2 Sensor 3)

DTC P246A meaning on BMW

DTC P246A indicates an issue with the Exhaust Gas Temperature (EGT) Sensor Circuit for Bank 2 Sensor 3 on a BMW vehicle. This fault code specifically points to an intermittent or erratic signal from the EGT sensor, which is responsible for monitoring the exhaust gas temperature in the exhaust system.

BMW DTC P246A symptoms

Symptoms of DTC P246A on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Increased fuel consumption
• Possible regeneration issues in diesel vehicles

BMW DTC P246A causes

Common causes of DTC P246A on a BMW include:

• Faulty Exhaust Gas Temperature (EGT) Sensor
• Wiring or connector issues in the EGT sensor circuit
• Software glitches or calibration problems

BMW DTC P246A seriousness

While DTC P246A may not always result in immediate drivability issues, it is important to address this fault code promptly to prevent potential long-term damage to the engine or emissions system. Ignoring this fault could lead to more severe problems over time.

How to diagnose DTC P246A on BMW

To diagnose DTC P246A 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 wiring and connectors related to Bank 2 Sensor 3 EGT sensor
3. Check the EGT sensor for proper operation and resistance values
4. Perform a visual inspection of the exhaust system for any signs of damage or leaks

How to fix DTC P246A on BMW

To fix DTC P246A on a BMW, you can try the following solutions:

1. Replace the faulty Bank 2 Sensor 3 EGT sensor
2. Repair any damaged wiring or connectors in the EGT sensor circuit
3. Update the engine control module software if necessary
4. Perform a forced regeneration on diesel vehicles if regeneration issues are present

How to erase DTC P246A on BMW

To erase DTC P246A on a BMW, you can use a diagnostic scanner to clear the fault code after the underlying issue has been resolved. Once the repair or replacement has been completed, you can reset the Check Engine Light and erase the fault code from the vehicle’s memory.

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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