BMW DTC P243B – Particulate Filter Restriction – Forced Limited Power (Bank 2)
DTC P243B meaning on BMW
DTC P243B on a BMW indicates a Particulate Filter Restriction – Forced Limited Power issue in Bank 2. This means that there is a restriction in the particulate filter that is causing the engine power to be limited in order to protect the engine from potential damage.
BMW DTC P243B symptoms
Symptoms of DTC P243B on a BMW may include reduced engine power, decreased fuel efficiency, rough idling, and potentially an illuminated check engine light on the dashboard.
BMW DTC P243B causes
The most common causes of DTC P243B on a BMW include a clogged particulate filter, faulty sensors, exhaust leaks, or issues with the diesel oxidation catalyst.
BMW DTC P243B seriousness
DTC P243B is a serious issue that should be addressed promptly. Ignoring this fault code can lead to further damage to the engine and emission control system, potentially resulting in costly repairs.
How to diagnose DTC P243B on BMW
To diagnose DTC P243B on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s computer system. They would then perform a visual inspection of the particulate filter, sensors, and exhaust system to identify any visible issues.
How to fix DTC P243B on BMW
Fixing DTC P243B on a BMW may involve cleaning or replacing the particulate filter, repairing any exhaust leaks, replacing faulty sensors, or addressing issues with the diesel oxidation catalyst. It is recommended to consult with a professional mechanic for an accurate diagnosis and proper repair.
How to erase DTC P243B on BMW
To erase DTC P243B on a BMW, a mechanic would typically use a diagnostic scanner to clear the fault codes stored in the vehicle’s computer system. Once the underlying issue has been addressed and fixed, the fault code can be cleared to reset the system.
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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