BMW DTC P244B – Particulate Filter Differential Pressure Too High (Bank 1)
DTC P244B meaning on BMW
DTC P244B indicates that the Particulate Filter Differential Pressure is too high on Bank 1 in a BMW vehicle. This fault code is specific to the diesel particulate filter system, which is responsible for trapping and burning off harmful particulate matter in the exhaust gases.
BMW DTC P244B symptoms
Symptoms of DTC P244B in a BMW may include reduced engine performance, decreased fuel efficiency, black smoke from the exhaust, and the illumination of the check engine light on the dashboard.
BMW DTC P244B causes
The high differential pressure in the particulate filter on Bank 1 can be caused by a clogged or restricted filter, faulty sensors, exhaust leaks, or issues with the diesel oxidation catalyst.
BMW DTC P244B seriousness
Ignoring DTC P244B in a BMW can lead to further damage to the engine and emissions system. It is important to address this issue promptly to prevent more severe problems and ensure the vehicle operates efficiently.
How to diagnose DTC P244B on BMW
To diagnose DTC P244B on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault codes and then perform a visual inspection of the particulate filter system, sensors, and related components. Testing the differential pressure sensor and checking for exhaust leaks are common diagnostic steps.
How to fix DTC P244B on BMW
Fixing DTC P244B 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 follow the manufacturer’s repair procedures and use genuine BMW parts for optimal performance.
How to erase DTC P244B on BMW
After fixing the underlying issue causing DTC P244B on a BMW, the fault codes 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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