Engine-CodesVolkswagen – P0680 Volkswagen

P0680 Volkswagen Code - Cylinder 10 Glow Plug Circuit Fault

Quick Answer

When a Volkswagen vehicle displays the diagnostic trouble code P0680, it indicates a fault in the cylinder 10 glow plug circuit. Common causes include Faulty glow plug in cylinder 10, Wiring or connection issues in the glow plug circuit, Defective glow plug relay. 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
P0680 Volkswagen indicates Cylinder 10 Glow Plug Circuit Fault.
Common causes
Common causes include Faulty glow plug in cylinder 10, Wiring or connection issues in the glow plug circuit, Defective glow plug relay.
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.
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0680 Volkswagen Description

When a Volkswagen vehicle displays the diagnostic trouble code P0680, it indicates a fault in the cylinder 10 glow plug circuit. Glow plugs are crucial components in diesel engines, especially during cold starts, as they heat up the combustion chamber to aid in the ignition process. In this case, the code specifically refers to an issue with the glow plug in cylinder 10.

OBDII Code P0680 Volkswagen - Cylinder 10 Glow Plug Circuit Fault
P0680 Volkswagen Code - Cylinder 10 Glow Plug Circuit Fault

Common Causes of P0680 Volkswagen

  1. Faulty glow plug in cylinder 10.
  2. Wiring or connection issues in the glow plug circuit.
  3. Defective glow plug relay.
  4. Malfunctioning engine control module (ECM).
  5. Corrosion or damage to the glow plug circuit components.

Symptoms of P0680 Volkswagen

  1. Difficulty starting the vehicle, especially in cold weather.
  2. Rough idling or misfiring engine.
  3. Decreased engine performance and power.
  4. Increased emissions or black smoke from the exhaust.
  5. Illumination of the check engine light on the dashboard.

How to Fix P0680 Volkswagen

  1. Diagnose the specific cause of the glow plug circuit fault using a diagnostic scanner.
  2. Inspect the glow plug in cylinder 10 and test its functionality.
  3. Check the wiring and connections in the glow plug circuit for any damage or corrosion.
  4. Test the glow plug relay and replace if necessary.
  5. Reset the fault code and test the vehicle to ensure the issue has been resolved.

Cost to Fix P0680 Volkswagen

The cost of repairing a cylinder 10 glow plug circuit fault in a Volkswagen vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, the parts required for this repair can range from $50 to $150, while the labor costs can be anywhere from $100 to $300. Therefore, the total repair cost may fall between $150 and $450. It's important to keep in mind that these are rough estimates, and actual costs may differ based on the factors mentioned earlier. Be sure to consult with a qualified mechanic or repair shop to get a more accurate quote for your specific situation.

When is the Code Detected?

The Engine Control Module (ECM) has detected a fault in the cylinder #10 glow plug circuit

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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.

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