A Guide to Direct Ignition Coils for the 2011-2017 Audi A4 Quattro

Signs of a Failing Ignition Coil

Ignition coil failure is a very common issue on the 2.0T engine in the 2011-2017 Audi A4 Quattro. The symptoms are usually sudden and hard to ignore. When a coil fails, the engine can no longer create a spark in that cylinder, a condition known as a "misfire."

Common symptoms include:

• Sudden Engine Shaking: The most obvious sign is a rough, vibrating, or shaking feeling, especially when the car is idling.
• Flashing Check Engine Light: A misfire is serious, and your car will alert you by flashing the check engine light. A solid light may also appear.
• Loss of Power: With one cylinder not working, your car will feel noticeably less powerful and may hesitate or jerk when you accelerate.
• Difficulty Starting: While less common if only one coil has failed, a weak ignition system can make it harder to start the engine.

Choosing the Right Aftermarket Ignition Coil

When it's time to replace your coils, you have several options. Since this is a common failure item, many owners choose to replace all four coils at once to prevent future breakdowns. It is also highly recommended to replace the spark plugs at the same time.

Here’s a breakdown of the available brands to help you decide:

Tier 1: OEM & Performance Brands

These brands are either Original Equipment Manufacturers (OEM) for Audi or are known for high-performance upgrades. They offer the best quality and reliability.

• Bremi: Often an OEM supplier for German vehicles, Bremi coils are a trusted, high-quality choice that matches factory performance.
• Hella: Another major German OEM supplier known for excellent quality and durability.
• Denso: A top-tier OEM supplier for many Japanese brands, Denso has a strong reputation for reliability and is a solid choice for any vehicle.
• APR: Known for performance tuning, APR offers high-output ignition coils, often in red or blue. These are designed to provide a stronger spark, which can be beneficial for tuned engines, but they also work perfectly on a stock A4.

Tier 2: Quality Aftermarket Brands

These brands provide a good balance of quality and value. They are reliable choices for a daily driven vehicle.

• Beck Arnley: This brand sources parts from various manufacturers, often including OEM suppliers. Quality is generally very good.
• Vemo: A well-regarded aftermarket brand that often provides quality parts for European vehicles.

Tier 3: Budget-Friendly Brands

These brands offer a lower price point, which can be attractive, but long-term durability may be less consistent than higher-tiered options.

• Accel: A brand more known in the domestic performance market, offering standard replacement coils.
• Facet & Prenco: These are typically budget-focused brands that can get your car running but may not have the same lifespan as OEM-quality parts.

Known Issues, Recalls, and Service Bulletins

While there were major ignition coil recalls for older Audi A4 models, the 2011-2017 B8.5 generation does not have a widespread, active recall for this specific part in the US. However, Technical Service Bulletins (TSBs) have been issued regarding the diagnosis of misfires. A TSB is a notice from the manufacturer to its dealers about a known issue and a recommended repair procedure. 🎬 Watch: A quick guide to diagnosing and repairing engine misfires. This underscores how common misfires are and the importance of correctly diagnosing the cause, which often leads to a faulty ignition coil.

Cost to Replace Audi A4 Quattro Ignition Coils

Note: Prices are estimates and can vary based on location and supplier. Labor for a single coil is minimal, but most shops have a minimum charge.

Frequently Asked Questions