AutoCodes – Volkswagen – P0357 Volkswagen

P0357 Volkswagen Code - Ignition Coil 7 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 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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: P0357 Volkswagen indicates Ignition Coil 7 Primary/Secondary Circuit Malfunction.
Common causes: Common causes include Faulty Ignition Coil 7, Ignition Coil 7 harness is open or shorted, Ignition Coil 7 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 3,918

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
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0357 Volkswagen 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 P0357 Volkswagen - Ignition Coil 7 Primary/Secondary Circuit Malfunction - AutoCodes.com — P0357 Volkswagen Code - Ignition Coil 7 Primary/Secondary Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0357 Volkswagen?

Faulty Ignition Coil 7
Ignition Coil 7 harness is open or shorted
Ignition Coil 7 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0357 Volkswagen?

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 P0357 Volkswagen 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 P0357 Volkswagen code?

Need more information on how to fix the P0357 Volkswagen code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0357 Volkswagen 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 P0357 Volkswagen Code

1. What are the common symptoms of an OBDII code P0357 for Volkswagen?

- Common symptoms include engine misfires, rough idle, lack of power, and illuminated check engine light.

2. What causes the OBDII code P0357 for Volkswagen?

- The code is typically triggered by issues with the ignition coil for cylinder 7, such as a faulty coil, wiring problems, or a defective spark plug.

3. How can I diagnose the OBDII code P0357 on my Volkswagen?

- To diagnose P0357, you can use an OBDII scanner to read the code, visually inspect the ignition coil and related components, and perform electrical tests to check for proper voltage and continuity.

4. Can driving with an OBDII code P0357 cause further damage to my Volkswagen?

- Continuing to drive with P0357 can potentially lead to more severe engine problems, reduced fuel efficiency, and catalytic converter damage over time.

5. How can I repair an ignition coil 7 primary/secondary circuit malfunction on my Volkswagen?

- Repair options may include replacing the faulty ignition coil, repairing damaged wiring, ensuring proper connection, and addressing any related issues like spark plug replacement.

6. Are there any preventive measures to avoid the OBDII code P0357 on my Volkswagen?

- Regular maintenance, such as timely spark plug replacement and periodic inspection of ignition components, can help prevent issues that may trigger P0357.

7. Can a DIY enthusiast fix the OBDII code P0357 on a Volkswagen?

- Depending on your skill level and access to tools, DIY enthusiasts may be able to address P0357 by following repair guides, but it's recommended to consult a professional for accurate diagnosis and repair.

8. Is it safe to drive my Volkswagen with the check engine light on due to the OBDII code P0357?

- While it may be safe to drive for a short distance, it's best to have the issue diagnosed and repaired promptly to prevent potential engine damage and ensure optimal performance.

9. How much does it typically cost to repair the OBDII code P0357 on a Volkswagen?

- The cost of repairing P0357 can vary depending on the exact cause, parts needed, labor rates, and location, but it may range from $100 to $300 or more at a dealership or repair shop.

10. Will resetting the check engine light resolve the OBDII code P0357 on my Volkswagen?

- Resetting the check engine light may temporarily clear the code, but if the underlying issue causing P0357 is not addressed, the code is likely to reappear.