BMW DTC P241E – Reductant Heater Coolant Control Valve Stuck Closed
DTC P241E meaning on BMW
DTC P241E on a BMW indicates an issue with the Reductant Heater Coolant Control Valve being stuck closed. This valve is responsible for controlling the flow of coolant to the reductant heater, which is used to heat the diesel exhaust fluid (DEF) to optimize the efficiency of the selective catalytic reduction (SCR) system.
BMW DTC P241E symptoms
Symptoms of DTC P241E on a BMW may include the check engine light being illuminated, reduced engine performance, increased emissions, and potential issues with the SCR system. Additionally, the vehicle may fail emissions testing due to increased NOx emissions.
BMW DTC P241E causes
The most common causes of DTC P241E on a BMW are a faulty Reductant Heater Coolant Control Valve, wiring issues, or a malfunction in the SCR system. It is essential to diagnose the specific cause accurately to perform the necessary repairs effectively.
BMW DTC P241E seriousness
DTC P241E should be taken seriously as it can lead to increased emissions, reduced fuel efficiency, and potential damage to the SCR system if left unresolved. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P241E on BMW
To diagnose DTC P241E on a BMW, a diagnostic scan tool can be used to retrieve the fault codes stored in the vehicle’s computer system. Additionally, a visual inspection of the Reductant Heater Coolant Control Valve and its wiring should be performed to check for any visible damage or issues. Testing the valve’s functionality and checking the SCR system for any related faults can help pinpoint the exact cause of the DTC.
How to fix DTC P241E on BMW
Fixing DTC P241E on a BMW typically involves replacing the Reductant Heater Coolant Control Valve if it is found to be stuck closed or faulty. Additionally, any damaged wiring should be repaired or replaced as needed. Once the repairs are completed, the vehicle should be tested to ensure that the issue has been resolved effectively.
How to erase DTC P241E on BMW
After fixing the underlying issue causing DTC P241E on a BMW, the fault codes can be cleared using a diagnostic scan tool. By clearing the codes, the check engine light should turn off, indicating that the issue has been addressed. It is essential to verify that the repairs were successful by driving the vehicle and ensuring that the fault codes do 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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