BMW DTC P028C – Charge Air Cooler Cooling Fan Stuck On
DTC P028C meaning on BMW
The DTC P028C on a BMW indicates that the charge air cooler cooling fan is stuck on. This means that the fan responsible for cooling the charge air in the intake system is continuously running, even when it should not be.
BMW DTC P028C symptoms
– Engine overheating
– Reduced engine performance
– Check Engine Light (CEL) illuminated on the dashboard
– Increased fuel consumption
BMW DTC P028C causes
– Faulty charge air cooler cooling fan relay
– Wiring issues or short circuits in the cooling fan circuit
– Defective charge air cooler cooling fan motor
BMW DTC P028C seriousness
Ignoring the DTC P028C can lead to engine overheating, reduced engine efficiency, and potential damage to engine components. It is important to address this issue promptly to prevent further damage.
How to diagnose DTC P028C on BMW
– Use a diagnostic scanner to retrieve the fault codes and confirm the presence of DTC P028C
– Inspect the charge air cooler cooling fan relay and wiring for any visible damage or corrosion
– Test the charge air cooler cooling fan motor for proper operation
How to fix DTC P028C on BMW
– Replace the faulty charge air cooler cooling fan relay if necessary
– Repair any damaged wiring or address any short circuits in the cooling fan circuit
– Replace the defective charge air cooler cooling fan motor
How to erase DTC P028C on BMW
After fixing the underlying issue causing the DTC P028C, you can use a diagnostic scanner to clear the fault code from the vehicle’s memory. Ensure that the repair has been successful before erasing the code.
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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