If you're noticing misfires, poor fuel economy, reduced engine performance, or ignition-related diagnostic trouble codes (DTCs), a failing ignition coil is likely the cause. Late-model BMWs, such as the E60 M5, E63 M6, and E64 M6, use a coil-on-plug ignition system, where each cylinder has its own coil and spark plug for efficient ignition. When a coil fails, the affected cylinder won't receive a spark and will misfire. Even if the misfire doesn’t trigger a DTC, you’ll still feel the difference in engine performance—rough idling, hesitation during acceleration, or a strong fuel smell. To avoid these issues, we recommend replacing your ignition coils every 40,000-60,000 miles.

The S85 engine uses a specialized ignition system called Ionic Current Control, which differs from traditional knock sensors. BMW engineers developed this system to more accurately detect pre-ignition and misfires in the high-revving, ten-cylinder S85. Instead of relying on conventional knock sensors, the system uses each spark plug to measure current after the power stroke, transmitting that data to the Ionic Current Control Unit (ICC). This allows for precise monitoring of combustion events. To support this, the S85’s ignition coils are specially designed with a modified “pencil” shape and lack a Zener diode in the secondary winding, allowing for accurate current measurements without triggering fault codes in the engine control unit (DME). These ignition coils are manufactured to the exact specifications of the OE Ionic Current Control-compatible ignition coil, and will not trigger ignition-related fault codes in the DME.

Bavarian Autosport ignition coils are engineered for reliability, delivering a consistent, long-lasting spark. These high-quality OE replacement coils are specifically designed for your S85-powered E60 M5, E63 M6, or E64 M6. Constructed with durable, heat-resistant plastic and featuring premium rubber spark plug boots, each boot is pre-lubricated with dielectric grease to ensure smooth installation and prevent corrosion.

Whether you're fixing misfires, replacing a faulty coil, or performing preventative maintenance on your S85 ignition system, trust Bavarian Autosport ignition coils for a dependable, lasting repair.

FEATURES:

Durable, heat-resistant plastic: Built to withstand extreme temperatures and harsh driving conditions for long-lasting durability. Pre-lubricated, high-quality rubber boots: Prevent moisture and corrosion while ensuring smooth, easy installation. OE-quality construction: Meets or exceeds original equipment standards for perfect fit, reliable performance, and effortless installation.

Enhance your BMW's performance with the upgraded BAV Ignition Coil, designed to boost firepower and optimize engine efficiency. These coils boast modified core windings for a faster, more efficient burn, resulting in increased torque at lower RPMs and heightened horsepower in the upper range. While improvements depend on your engine's condition, these coils ensure noticeable enhancements in performance and potential fuel economy benefits.

Product Benefits:

Improved engine firepower and efficiency
Increased torque at lower RPMs
Enhanced horsepower in higher ranges
Potential improvement in fuel economy
Set of eight for complete BMW Cooper replacement

For BMW owners facing issues with their gas gauge or experiencing fuel pump failure, this replacement is the ideal solution.

• Restores accurate gas gauge readings
• Addresses fuel pump failure effectively
• Direct replacement for seamless installation
• Ensures reliable fuel level monitoring
• Compatible with various BMW models

Ensure your BMW's fuel system stays in top condition with this reliable replacement, providing accurate gas gauge readings and resolving fuel pump issues.

MINI R52 R53 JCW Fuel Injector - Set Of 4

Upgrade your MINI with the MINI R52 R53 JCW Fuel Injector - Set Of 4, designed for enhanced performance. Whether you're tuning your W11 Supercharged engine above 200HP+ or replacing injectors in JCW engines, these OEM-designed injectors deliver reliable fuel flow and efficiency.

Key Benefits:

• OEM design ensures perfect fit and function
• Suitable for W11 Supercharged engines with tuned setups
• Direct replacement for JCW engines in R52 S and R53 models
• Features a two-hole 380cc design for optimal fuel delivery

Bavarian Autosport served the needs of BMW and MINI enthusiasts from 1974-2019. In 2019, ECS Tuning acquired the Bavarian Autosport brand, committing to continuing the tradition of excellence Bav Auto is known for. Over the years, Bav developed their own brand of parts, accessories and upgrades. A lot of these parts are engineered and built by OEMs (Original Equipment Manufacturers � companies who make original parts for BMW, MINI, and other European marques). Just as MINI, we work with a variety of manufacturers in Europe, Asia and North America. In many cases, we have sourced parts that are superior to Original Equipment.

A lot of time and resources have been put into developing and evaluating these products, as well as the companies who produce them. We stand behind every product we sell. If any product fails to meet our standards � or our customers' expectations � we won't sell it, and we're certainly not going to put the Bavarian Autosport name on it. In fact, we're so confident in the quality of these parts that we back every Bavarian Autosport brand part with a 2-year warranty.