BMW DTC P3245 – Electrical Auxiliary Heater Overtemperature Condition
DTC P3245 meaning on BMW
The Diagnostic Trouble Code (DTC) P3245 for BMW indicates an Electrical Auxiliary Heater Overtemperature Condition. This means that the control module has detected that the electrical auxiliary heater in the vehicle has reached a temperature that is higher than the specified limit.
BMW DTC P3245 symptoms
Symptoms of DTC P3245 in a BMW may include:
- Check Engine Light illuminated on the dashboard
- Reduced heating performance in the vehicle
- Possible burning smell coming from the heater
BMW DTC P3245 causes
The common causes of DTC P3245 in a BMW include:
- Malfunctioning electrical auxiliary heater
- Wiring or connection issues related to the auxiliary heater
- Faulty temperature sensor
BMW DTC P3245 seriousness
While DTC P3245 is not a critical issue that affects the drivability of the vehicle, it is important to address it promptly to prevent any potential damage to the electrical auxiliary heater system.
How to diagnose DTC P3245 on BMW
To diagnose DTC P3245 on a BMW, you can follow these steps:
- Use a diagnostic scanner to retrieve the fault codes stored in the vehicle’s control module
- Inspect the electrical auxiliary heater for any visible signs of damage or overheating
- Check the wiring and connections related to the auxiliary heater for any loose connections or corrosion
- Test the temperature sensor to ensure it is functioning correctly
How to fix DTC P3245 on BMW
To fix DTC P3245 on a BMW, you can try the following solutions:
- Replace the faulty electrical auxiliary heater with a new one
- Repair any damaged wiring or connections related to the auxiliary heater
- Replace the temperature sensor if it is found to be faulty
- Clear the fault codes using a diagnostic scanner after the repairs have been completed
How to erase DTC P3245 on BMW
To erase DTC P3245 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s control module. Once the repairs have been made to address the underlying issue causing the fault code, you can reset the system by clearing the DTC and ensuring that the Check Engine Light is no longer illuminated.
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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