AutoCodes – Mercedes-Benz – P0359 Mercedes-Benz

P0359 Mercedes-Benz Code - Ignition Coil 9 Primary/Secondary Circuit Malfunction

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 9, Ignition Coil 9 harness is open or shorted, Ignition Coil 9 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: P0359 Mercedes-Benz indicates Ignition Coil 9 Primary/Secondary Circuit Malfunction.
Common causes: Common causes include Faulty Ignition Coil 9, Ignition Coil 9 harness is open or shorted, Ignition Coil 9 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.

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Code Popularity 3,499

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0359 Mercedes-Benz Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

OBDII Code P0359 Mercedes-Benz - Ignition Coil 9 Primary/Secondary Circuit Malfunction - AutoCodes.com — P0359 Mercedes-Benz Code - Ignition Coil 9 Primary/Secondary Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0359 Mercedes-Benz?

Faulty Ignition Coil 9
Ignition Coil 9 harness is open or shorted
Ignition Coil 9 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0359 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0359 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 P0359 Mercedes-Benz code?

Need more information on how to fix the P0359 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0359 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 P0359 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P0359 (Ignition Coil 9 Primary/Secondary Circuit Malfunction) in a Mercedes-Benz?

- Common symptoms include engine misfires, rough idling, loss of power, and an illuminated check engine light.

2. What can cause OBDII code P0359 to trigger in a Mercedes-Benz?

- Possible causes include a faulty ignition coil, wiring issues in the ignition coil circuit, or a problem with the Engine Control Module (ECM).

3. How can I diagnose the source of the OBDII code P0359 in my Mercedes-Benz?

- To diagnose this issue, you can perform a visual inspection of the ignition coil and its wiring, use a scan tool to check for related codes, and perform electrical testing on the ignition coil and circuit.

4. Can I drive my Mercedes-Benz with OBDII code P0359 present?

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

5. Is it possible to repair OBDII code P0359 in a Mercedes-Benz by replacing just the ignition coil?

- Yes, in many cases, replacing the faulty ignition coil can resolve the P0359 code. However, it's essential to ensure that the wiring and connections are also inspected for any issues.

6. Are there any preventive measures to avoid OBDII code P0359 from reoccurring in my Mercedes-Benz?

- Regular maintenance, such as inspecting and replacing ignition coils at recommended intervals, can help prevent the recurrence of this code.

7. How much does it typically cost to repair OBDII code P0359 in a Mercedes-Benz at a dealership or repair shop?

- The cost of repairing this code can vary depending on the labor rates and parts required. It's recommended to obtain quotes from different service providers for an accurate estimate.

8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P0359 in a Mercedes-Benz?

- While it's possible for DIY enthusiasts to replace an ignition coil, diagnosing and repairing electrical issues related to this code may require more advanced skills and equipment.

9. Will resetting the check engine light clear OBDII code P0359 in a Mercedes-Benz?

- Resetting the check engine light will clear the code temporarily, but if the underlying issue is not addressed, the code is likely to reappear.

10. How urgent is it to address OBDII code P0359 in a Mercedes-Benz?

- It's advisable to address this code promptly to prevent potential engine performance issues, increased fuel consumption, and further damage to other components.