P0351 BMW Code - Ignition Coil Cylinder 1
Quick Answer
The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0351 BMW indicates Ignition Coil Cylinder 1.
- Common causes
- Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P0351 BMW Description
What are the Possible Causes of the DTC P0351 BMW?
- Faulty Ignition Coil 1
- Ignition Coil 1 harness is open or shorted
- Ignition Coil 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0351 BMW?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0351 BMW code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P0351 BMW Code
1. What does OBDII code P0351 mean on a BMW?
P0351 indicates an issue with the ignition coil circuit in cylinder 1, often related to a malfunction in the coil, wiring, or control module.
2. What are the common symptoms of a P0351 code in a BMW?
Symptoms may include engine misfires, rough idling, lack of power, poor fuel economy, and an illuminated check engine light.
3. What causes the P0351 code in a BMW?
Common causes include a faulty ignition coil, damaged spark plug, wiring issues (e.g., short or open circuits), or a malfunctioning engine control module (ECM).
4. Can I drive my BMW with a P0351 code?
Driving with a P0351 code is not recommended, as it can lead to further engine damage and reduced performance due to misfires.
5. How do I diagnose the P0351 code in my BMW?
Start by inspecting the ignition coil for cylinder 1, checking the spark plug, and testing the wiring for continuity or damage. A diagnostic scanner and multimeter can help pinpoint the issue.
6. How can I fix the P0351 code on a BMW?
Repairs may involve replacing the ignition coil or spark plug, repairing damaged wiring, or addressing an ECM issue if necessary.
7. How much does it cost to repair a P0351 code on a BMW?
The cost varies depending on the issue, but replacing an ignition coil typically costs $100-$300 for parts and labor, while wiring repairs or ECM replacement can be higher.
8. Can a bad spark plug cause a P0351 code on a BMW?
Yes, a bad spark plug in cylinder 1 can create excessive resistance, leading to ignition coil failure and triggering the P0351 code.
9. Will clearing the P0351 code fix the problem permanently?
No, clearing the code will temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
10. Can a P0351 code damage my BMW's engine?
If left unresolved, the misfires and poor combustion associated with P0351 can cause long-term engine damage, including catalytic converter failure.
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