P0264 Mercedes-Benz Code - Cylinder 2 Injector 'A' Circuit Low
Quick Answer
This fault code is stored in the Engine Control Module (ECM) when the injector control circuit does not behave as expected. Common causes include Dirty Fuel Injector 2, Faulty Fuel Injector 2, Plugged Fuel Injector 2. 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
- P0264 Mercedes-Benz indicates Cylinder 2 Injector 'A' Circuit Low.
- Common causes
- Common causes include Dirty Fuel Injector 2, Faulty Fuel Injector 2, Plugged Fuel Injector 2.
- 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 P0264 Mercedes-Benz Description
What are the Possible Causes of the DTC P0264 Mercedes-Benz?
- Dirty Fuel Injector 2
- Faulty Fuel Injector 2
- Plugged Fuel Injector 2
- Fuel Injector #2 harness is open or shorted
- Fuel Injector #2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0264 Mercedes-Benz?
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.
Code Tech Notes
Clogged or partially clogged fuel injector can cause this code. Start by performing an injector flush before replacing the injector.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0264 Mercedes-Benz 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 P0264 Mercedes-Benz Code
1. What does OBDII code P0264 mean for a Mercedes-Benz?
Code P0264 indicates a low voltage issue in the Cylinder 2 Injector 'A' circuit, which suggests a problem with the fuel injector or its related wiring.
2. What are the common symptoms of P0264 on a Mercedes-Benz?
Symptoms may include rough idling, engine misfires, reduced fuel efficiency, hesitation during acceleration, and a check engine light.
3. What causes the P0264 code to appear on a Mercedes-Benz?
Common causes include a faulty injector, damaged wiring or connectors, issues with the PCM (Powertrain Control Module), or excessive carbon buildup around the injector.
4. Can I drive my Mercedes-Benz with a P0264 code?
While the car may still be operable, driving with this code can lead to further engine damage or reduced performance. It’s best to address the issue as soon as possible.
5. How do I diagnose the P0264 code on a Mercedes-Benz?
Start by checking the wiring and connectors for Cylinder 2 Injector, testing the injector itself, and verifying proper voltage signals using a multimeter.
6. How can I fix the P0264 code on my Mercedes-Benz?
Potential fixes include repairing or replacing damaged wiring, cleaning or replacing the fuel injector, and updating or reprogramming the PCM if necessary.
7. How much does it cost to repair a P0264 code on a Mercedes-Benz?
Repair costs can vary widely depending on the issue, ranging from $50 for a wiring repair to $300-$500 for a new fuel injector, excluding labor costs.
8. Can a dirty fuel injector cause the P0264 code?
Yes, excessive carbon buildup or debris in the injector can restrict proper operation and trigger the P0264 code.
9. How does the PCM affect the P0264 code on a Mercedes-Benz?
The PCM controls the injector circuit and monitors voltage levels. A malfunctioning PCM can send incorrect signals and result in the P0264 code.
10. Will replacing the injector always fix the P0264 code?
No, if the issue lies in wiring, connectors, or the PCM, replacing the injector alone won’t solve the problem. Proper diagnosis is essential.
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