AutoCodes – Mercedes-Benz – P0287 Mercedes-Benz

P0287 Mercedes-Benz Code - Cylinder 9 Contribution/Balance Fault

Quick Answer

Code P0287 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 9 was less than a calibrated amount. Common causes include Dirty Fuel Injector 9, Faulty Fuel Injector 9, Plugged Fuel Injector 9. 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: P0287 Mercedes-Benz indicates Cylinder 9 Contribution/Balance Fault.
Common causes: Common causes include Dirty Fuel Injector 9, Faulty Fuel Injector 9, Plugged Fuel Injector 9.
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.

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Code Popularity 3,397

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 02, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0287 Mercedes-Benz Description

Code P0287 is triggered when the Engine Control Module (ECM) detects that the acceleration rate of the crankshaft for Cylinder 9 was less than a calibrated amount. During normal conditions, the ECM turns the Fuel Injectors ON and OFF in the Fuel Injection System.

OBDII Code P0287 Mercedes-Benz - Cylinder 9 Contribution/Balance Fault - AutoCodes.com — P0287 Mercedes-Benz Code - Cylinder 9 Contribution/Balance Fault

What does this mean?

What are the Possible Causes of the DTC P0287 Mercedes-Benz?

Dirty Fuel Injector 9
Faulty Fuel Injector 9
Plugged Fuel Injector 9
Fuel injector 9 harness is open or shorted
Fuel injector 9 circuit poor electrical connection

How to Fix the DTC P0287 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.

What does this mean?

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 P0287 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.

Need more information about the P0287 Mercedes-Benz code?

Need more information on how to fix the P0287 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0287 Mercedes-Benz code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0287 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P0287 in a Mercedes-Benz related to Cylinder 9 Contribution/Balance Fault?

- Common symptoms include rough idling, decreased engine performance, misfires, and potentially an illuminated Check Engine light.

2. What are the possible causes of OBDII code P0287 in a Mercedes-Benz?

- Potential causes include a faulty fuel injector in cylinder 9, issues with the ignition system, vacuum leaks, fuel delivery problems, or wiring issues.

3. How can I diagnose the Cylinder 9 Contribution/Balance Fault in my Mercedes-Benz for OBDII code P0287?

- Diagnosing this issue typically involves conducting a visual inspection, checking the fuel injector in cylinder 9, performing a compression test, and scanning the vehicle's computer for additional error codes.

4. Can I drive my Mercedes-Benz with OBDII code P0287 indicating a Cylinder 9 Contribution/Balance Fault?

- It is not recommended to drive the vehicle with this code present, as it can lead to further engine damage and potential safety issues. It's best to address the problem promptly.

5. What are some repair tips for fixing OBDII code P0287 in a Mercedes-Benz?

- Repair tips include replacing the faulty fuel injector in cylinder 9, addressing any ignition system issues, fixing vacuum leaks, checking fuel delivery components, and ensuring proper wiring connections.

6. How much does it typically cost to repair OBDII code P0287 in a Mercedes-Benz?

- The cost of repairs can vary depending on the specific issue causing the code. It's recommended to consult with a qualified mechanic or dealership for an accurate diagnosis and cost estimate.

7. Can a DIY enthusiast fix OBDII code P0287 related to Cylinder 9 Contribution/Balance Fault in a Mercedes-Benz?

- While some basic troubleshooting and repairs can be done by DIY enthusiasts, diagnosing and fixing this specific code may require advanced technical knowledge and specialized tools. It's best to consult with a professional if unsure.

8. Are there any preventive maintenance measures to avoid OBDII code P0287 in a Mercedes-Benz?

- Regularly servicing and maintaining your vehicle, including timely oil changes, fuel system checks, and using quality fuel, can help prevent issues that may lead to OBDII code P0287.

9. How long does it typically take to repair OBDII code P0287 in a Mercedes-Benz?

- The repair time can vary depending on the exact cause of the issue and the availability of parts. In some cases, it may be resolved within a few hours, while more complex problems could take longer.

10. Is it necessary to reset the OBDII system after repairing OBDII code P0287 in a Mercedes-Benz?

- Yes, it is important to clear the error codes and reset the OBDII system after repairing the issue to ensure the vehicle's computer registers the repair and monitors the system for any new problems.