P214B – BMW DTC

BMW DTC P214B – SCR NOx Catalyst Inlet Temperature Too High During Particulate Filter Regeneration

DTC P214B meaning on BMW

DTC P214B on a BMW indicates that the Selective Catalytic Reduction (SCR) NOx Catalyst Inlet Temperature is too high during Particulate Filter Regeneration. This fault code is related to the temperature of the exhaust gas entering the SCR catalyst being excessively high during the regeneration process of the diesel particulate filter.

BMW DTC P214B symptoms

Symptoms of DTC P214B on a BMW may include:

• Check Engine Light illuminated
• Reduced engine performance
• Possible engine overheating
• Increased fuel consumption

BMW DTC P214B causes

Common causes of DTC P214B on a BMW include:

• Malfunctioning temperature sensor
• Exhaust system leaks
• Issues with the SCR system
• Software glitches

BMW DTC P214B seriousness

DTC P214B should not be ignored as it can lead to increased emissions, reduced fuel efficiency, and potential damage to the SCR system. Continuing to drive with this fault code present may result in further engine issues and could lead to more costly repairs down the line.

How to diagnose DTC P214B on BMW

To diagnose DTC P214B on a BMW, you can perform the following steps:

1. Use a diagnostic scanner to retrieve the fault code and any related codes.
2. Inspect the exhaust system for leaks or damage.
3. Check the temperature sensor for proper operation.
4. Verify the functionality of the SCR system components.

How to fix DTC P214B on BMW

To fix DTC P214B on a BMW, you may need to:

1. Replace a faulty temperature sensor.
2. Repair any exhaust system leaks.
3. Address any issues with the SCR system components.
4. Update the engine control module software if necessary.

How to erase DTC P214B on BMW

To erase DTC P214B on a BMW, you can:

1. Use a diagnostic scanner to clear the fault code.
2. After fixing the underlying issue, drive the vehicle to allow the system to perform a self-check and verify that the fault code does not return.

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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