AutoCodes – Mercedes-Benz – P0352 Mercedes-Benz

P0352 Mercedes-Benz Code - Ignition Coil 2 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 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 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: P0352 Mercedes-Benz indicates Ignition Coil 2 Primary/Secondary Circuit Malfunction.
Common causes: Common causes include Faulty Ignition Coil 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 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 19,653

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 P0352 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 P0352 Mercedes-Benz - Ignition Coil 2 Primary/Secondary Circuit Malfunction - AutoCodes.com — P0352 Mercedes-Benz Code - Ignition Coil 2 Primary/Secondary Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0352 Mercedes-Benz?

Faulty Ignition Coil 2
Ignition Coil 2 harness is open or shorted
Ignition Coil 2 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0352 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 P0352 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 P0352 Mercedes-Benz code?

Need more information on how to fix the P0352 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0352 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 P0352 Mercedes-Benz Code

1. What are the common symptoms of OBDII code P0352 in a Mercedes-Benz related to Ignition Coil 2 Primary/Secondary Circuit Malfunction?

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

2. What can cause the OBDII code P0352 to trigger in a Mercedes-Benz?

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

3. How can I diagnose the OBDII code P0352 in my Mercedes-Benz?

- You can diagnose the code by performing a visual inspection of the ignition coil and its connections, checking for damaged wires, using a multimeter to test the coil's resistance, and scanning the ECM for additional fault codes.

4. Can driving with the OBDII code P0352 in a Mercedes-Benz cause further damage?

- Continuing to drive with this code can potentially lead to more severe engine problems, reduced fuel efficiency, and increased emissions.

5. Is it safe to ignore the OBDII code P0352 and continue driving my Mercedes-Benz?

- It is not recommended to ignore this code, as it can affect your vehicle's performance and lead to more serious issues over time.

6. How do I repair the OBDII code P0352 in a Mercedes-Benz?

- Repair options may include replacing the faulty ignition coil, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

7. Can a DIY enthusiast fix the OBDII code P0352 in a Mercedes-Benz?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to replace the ignition coil or check for basic wiring issues. More complex diagnostics and repairs may require professional help.

8. What is the typical cost to repair the OBDII code P0352 in a Mercedes-Benz?

- Costs can vary depending on the specific issue, but replacing an ignition coil can range from $100 to $300, while additional repairs may increase the total cost.

9. How long does it take to repair the OBDII code P0352 in a Mercedes-Benz?

- The repair time can vary based on the extent of the issue and the repair process involved, but it typically takes 1-2 hours for a professional technician to diagnose and address the problem.

10. Can regular maintenance help prevent the OBDII code P0352 from occurring in a Mercedes-Benz?

- Yes, performing regular maintenance such as checking and replacing ignition components at recommended intervals can help prevent issues like P0352 from occurring.