BMW DTC P2308 – Ignition Coil ‘C’ Secondary Circuit
DTC P2308 meaning on BMW
The Diagnostic Trouble Code (DTC) P2308 for BMW indicates a fault in the ignition coil ‘C’ secondary circuit. This means that there is an issue with the electrical circuit that controls the ignition coil for cylinder ‘C’ in the engine.
BMW DTC P2308 symptoms
Symptoms of DTC P2308 on a BMW may include engine misfires, rough idling, loss of power, hesitation during acceleration, and in some cases, the Check Engine Light may illuminate on the dashboard.
BMW DTC P2308 causes
The common causes of DTC P2308 on a BMW include a faulty ignition coil ‘C’, damaged wiring or connectors in the ignition coil circuit, or issues with the Engine Control Module (ECM).
BMW DTC P2308 seriousness
Ignoring DTC P2308 on a BMW can lead to poor engine performance, reduced fuel efficiency, and potential damage to other engine components over time. It is recommended to address this issue promptly to prevent further complications.
How to diagnose DTC P2308 on BMW
To diagnose DTC P2308 on a BMW, a mechanic would typically use a diagnostic scanner to retrieve the fault code and perform a visual inspection of the ignition coil ‘C’ and its associated wiring. They may also conduct tests to check the resistance of the ignition coil and inspect for any signs of physical damage.
How to fix DTC P2308 on BMW
Fixing DTC P2308 on a BMW usually involves replacing the faulty ignition coil ‘C’ and repairing any damaged wiring or connectors in the circuit. It is important to use genuine BMW parts to ensure proper functionality and performance.
How to erase DTC P2308 on BMW
Once the issue causing DTC P2308 has been resolved, the fault code can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the vehicle’s ECM 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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