BMW DTC P0350 – Ignition Coil Primary/Secondary Circuit
DTC P0350 meaning on BMW
The DTC P0350 error code on a BMW indicates a problem with the ignition coil primary/secondary circuit. This means that the Engine Control Module (ECM) has detected an issue with the electrical circuit that controls the ignition coil’s operation.
BMW DTC P0350 symptoms
Symptoms of a DTC P0350 on a BMW may include engine misfires, rough idling, loss of power, poor fuel efficiency, and in some cases, the vehicle may not start at all. The Check Engine Light will also be illuminated on the dashboard.
BMW DTC P0350 causes
The most common causes of a DTC P0350 on a BMW are faulty ignition coils, damaged wiring or connectors in the ignition coil circuit, a defective ECM, or issues with the spark plugs or spark plug wires.
BMW DTC P0350 seriousness
Ignoring a DTC P0350 on a BMW can lead to further engine damage, reduced fuel efficiency, and potential safety hazards if the vehicle stalls unexpectedly. It is important to address this issue promptly to prevent more severe problems.
How to diagnose DTC P0350 on BMW
To diagnose a DTC P0350 on a BMW, a mechanic will typically use a diagnostic scanner to retrieve the fault codes stored in the ECM. They will then inspect the ignition coils, wiring, and connectors for any visible damage. Testing the ignition coils and related components with a multimeter may also be necessary to pinpoint the exact cause of the issue.
How to fix DTC P0350 on BMW
Fixing a DTC P0350 on a BMW usually involves replacing the faulty ignition coil, repairing any damaged wiring or connectors, or addressing any other underlying issues that may have caused the fault code. It is recommended to use OEM or high-quality replacement parts to ensure proper functionality.
How to erase DTC P0350 on BMW
After fixing the underlying issue causing the DTC P0350 on a BMW, the fault codes can be cleared using a diagnostic scanner. This will reset the Check Engine Light and allow the ECM to monitor the system for any new faults. It is important to verify that the issue has been resolved before clearing the fault codes.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.