BMW Engine Parts

Upgrade your stock oil cooler thermostat for improved performance. Swap your factory 110-degree Celsius thermostat for a new 70-degree Celsius version for faster oil flow and extended temperature control. With oil temperatures reaching 230 degrees Fahrenheit by the time your factory thermostat opens, initiating oil flow at lower temperatures proves more effective than attempting to cool down already elevated temperatures.

Utilizing a factory-style thermostat, this upgrade can be used in all weather conditions and allows your engine to warm up properly, unlike thermostat bypass kits.

Kit contents:​

Lower temperature thermostat - 70c (158F) vs Factory 110c (230F)
Low temp thermostat spring

Perfect for DIY enthusiasts, this all-in-one kit has everything you need to refresh your ignition system! With just one click, you'll get high-quality, matching replacement parts, making it simpler than ever to service and restore your ignition system.

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's MSS65 DME uses a unique ignition system known as Ionic Current Control. 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 as a current probe, applying a low voltage to the electrode immediately after the power stroke and sending the resulting current to the Ionic Current Control Unit (ISS) for evaluation. 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 the typical Zener diode in the secondary winding, allowing for accurate current measurements without triggering fault codes in the engine control unit (DME). Bavarian Autosport ignition coils are manufactured to the exact specifications of the OE Ionic Current Control-compatible ignition coils, 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.

Features & Benefits:

Bavarian Autosport Ignition Coils - Set of Ten Durable, temperature-resistant plastic construction is designed to withstand extreme heat and harsh conditions, ensuring long-lasting performance. High-quality rubber spark plug boots are pre-lubricated with dielectric grease to prevent moisture intrusion and potential corrosion. Built to meet or exceed OE manufacturing standards, guaranteeing a perfect fit, reliable performance, and seamless installation. NGK 4471 LKR8AP Spark Plugs - Set of Ten Multi-ground electrodes improve ignition capability and are less sensitive to increased voltage use with gap growth. Corrugated ribs prevent flashover. Copper core aids in heat removal. Pre-gapped to 0.035" (0.9mm) OEM-specified spark plug for all S85 applications.

At almost half of the normal cost of Genuine BMW Installation Tool - No. 130190, this Schwaben BMW Fuel Injector O-Ring Tool Set is a perfect alternative to save money and ensure your have the proper tool for the job when it come time to service your fuel system. Make sure the job is done correctly the first time with this specialty item, relieving frustration and saving time all while preventing you from damaging critical seals or the injector itself that could otherwise be damaged if using the wrong tools for the job. 

This tool set includes all of the same components you would get with the BMW tool, the seal cutting pliers and seal installation components, made to exact specifications for perfect operation.

The Schwaben Piston Ring Filer is a vital tool for obtaining the precise end gap necessary for optimal piston ring performance.

This filer allows you to swiftly and accurately file piston rings to exact measurements, enhancing your engine’s efficiency and lifespan. By simply positioning the piston ring and turning the handle, you can easily rotate the abrasive wheel for a smooth and effective filing process.

**Note:** For the Schwaben Universal Piston Ring Compressor, check out T25805755!

Key Features:

• Optimize Performance: Achieve the perfect end gap crucial for top engine efficiency.
• Quick and Precise: File rings to exact specifications with ease.
• Easy Operation: Position the piston ring and turn the handle to effortlessly rotate the abrasive wheel.
• Enhanced Engine Longevity: Accurate end gaps contribute to longer engine life and better performance.

Instructions:

1. Position the Ring: Place the piston ring on the outer edge against the stop and align the ends squarely against the grinding wheel. Apply light, even pressure against the wheel to prevent grinding too large a gap.
2. Operate the Tool: Turn the handle so the grinding wheel turns towards the inside edge of the ring (counter-clockwise when viewed from the handle side of the tool).
3. Exercise Caution: This is a diamond grinding wheel. It cuts fast!

Checking Piston Ring Gap:

1. Deburr the Ring Ends: Carefully remove any burrs on the ring ends before placing the ring in the bore. A light touch with a fine abrasive stone works well.
2. Clean the Rings: Thoroughly clean the rings with lacquer thinner or acetone, as the paint coating from the factory may occasionally scratch the cylinder bore. Always wear gloves during this process.
3. Position the Ring in the Cylinder: Place the ring squarely in the cylinder bore, about 1" down from the deck surface. An upside-down flat-top piston will help you properly square the ring.
4. Measure the End Gap: Use a feeler gauge to measure the ring's end gap. Apply light grinding pressure and check frequently to avoid making the end gap too large.

WARNING: This product contains chemicals known to the state of California to cause cancer, birth defects, and/or reproductive harm. See above warning label as well as http://www.p65warnings.ca.gov for further information on Proposition 65 warnings.