BMW Engine Parts for BMW 3 Series E46 (1999-2005)

Ignition coils are key to the efficiency and performance of your BMW. With a faulty coil the spark plug is not burning the air/fuel mixture properly and that can lead to problems anywhere in the engine and exhaust (including catalytic converters and O2 sensors). Problems with one or more coils will cause a fault code but not always a check engine light. A misfire code may be related to an ignition coil but could be from other things as well. Sometimes a visual inspection of a coil and coil boot will give an indication of a failure. You can also move coils around to different cylinder banks to see if the misfire code follows a suspect coil. We suggest always having one or two coils on hand to keep as spares.

This is the current replacement for some BMW 6 and 8-cylinder engines built in the late 2000s and after. BMW has made numerous changes to ignition coil part numbers in recent years but has approved this part number to work in the vehicles listed below. It's listed as a replacement coil for N20, N55, and S55 engines. In March 2015 BMW approved it for N51/N52 engines. This part number replaces the previous BMW part number 12137594937 for the cars listed below.

Sold per coil. Includes boot and connector.

Ensure optimal engine performance in your BMW M50 M52 Engines with Turner Motorsport's Mahle Piston Ring Set. Over time, worn piston rings can lead to power loss, increased oil consumption, and white smoke from the tailpipe. When rebuilding your BMW's engine, replacing the piston rings is essential for restoring power and efficiency. Each set is priced individually, with six sets required for complete engine overhaul.

Key Benefits:

• Restores engine power and efficiency
• Reduces oil consumption
• Prevents white smoke from the tailpipe
• Compatible with M50 M52 Engines

Faulty crankshaft position sensors can cause issues with proper ignition timing and adjustment leading to rough idle, stalling, and potential engine damage. A high quality OEM Hella replacement will have your BMW running smoothly for much less than the cost of a Genuine BMW sensor.

Hella is a premium manufacturer that supplies automotive parts to numerous car brands across the world. Everything from electrical to mechanical genuine parts have been made and supplied directly to BMW before the vehicles ever leave the production floor. Their high quality, long lasting parts have made them a trusted brand chosen to help keep your BMW on the road for many years to come.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Fits BMW models with the following engines: M52 S52 M54 M56

After the introduction of the M52TU/M54 engines, BMW observed an uptick in CCV-related issues, especially in cold regions. Vehicles operating in extremely low temperatures often encountered a blockage in the CCV dipstick hose, leading to elevated crankcase pressure and visible blue smoke from the exhaust. To address this issue, BMW introduced cold climate-specific hoses with foam insulation, preventing condensation and facilitating quicker oil warm-up. This kit incorporates top-notch reproduction cold climate hoses to ensure optimal CCV performance across all weather conditions.

The crankcase ventilation valve, known as the oil separator, PCV, CCV, or crankcase pressure regulator valve, plays a vital role in redirecting oil from your vehicle's intake system back into the engine oil pan. This system comprises numerous plastic and rubber hoses, prone to damage due to prolonged exposure to chemicals and heat.

Designed to tackle or prevent impending CCV system failures, this kit includes four foam-insulated hoses made from durable plastic capable of withstanding heat fluctuations and chemical exposure. Additionally, a new ventilation valve is included for a comprehensive and long-lasting repair solution.

Signs indicating the need for crankcase ventilation system replacement include:

Whistling sounds from the intake manifold, caused by crankcase pressure venting through holes in the CCV hoses. Blue smoke emitting from the tailpipe, indicating oil consumption. Excessive oil usage. Milky or yellowish buildup under the oil cap, suggesting condensation due to ventilation valve malfunction. If you're experiencing misfires, lean fuel codes, decreased fuel efficiency, or noticeable oil consumption, it's advisable to overhaul your crankcase ventilation system. Opt for this reliable system from Febi-Bilstein for a repair that meets factory standards and ensures consistent performance.

The camshaft position sensor is essential for assisting the engine DME by monitoring the camshaft's position. The data from this sensor is key to optimizing ignition timing and ensuring smooth engine performance.

Often referred to as the CMP sensor, this component is crucial for the overall functionality of the powertrain. A failing camshaft position sensor can cause a range of issues, including engine stumbling, hesitation during acceleration, power loss, and even starting difficulties or complete failure to start.

Ensure optimal fuel delivery for your BMW's engine with the Turner Motorsport Fuel Filter for E46 M3 & Z3 S54 3.2L Engine. Over time, fuel filters can become clogged, hindering the engine's ability to receive sufficient fuel. This can lead to various fuel-related issues such as surging, stalling, cold start problems, and decreased performance. Replacing the fuel filter with a fresh one helps address these issues and ensures smooth engine operation under various conditions.

Benefits:

• Improves fuel delivery to the engine
• Addresses fuel-related problems such as surging and stalling
• Enhances cold start performance
• Maintains engine performance under various driving conditions
• Recommended replacement every 60,000 miles, or more frequently in regions with poor fuel quality

BMW N52 N44 VANOS Oil Feed Line is essential for ensuring reliable oil supply to the VANOS cam unit in your BMW. Manufactured by URO Parts, a leading name in the aftermarket automotive industry, this oil feed line is designed to meet the highest standards of quality and performance. Turner Motorsport offers this direct replacement component, crafted to ISO 9000 certification standards, ensuring long-lasting durability and seamless integration with your BMW's engine. With this high-quality oil feed line, you can maintain optimal engine performance and avoid potential issues related to insufficient oil flow.

• Ensures reliable oil supply to the VANOS cam unit
• Manufactured by URO Parts, a trusted name in the industry
• Direct replacement for seamless installation
• Meets ISO 9000 certification standards for quality
• Supports optimal engine performance and longevity

The factory VANOS exhaust hub on the S54 engine is known to develop excessive play where the drive tabs interface with the oil pump disk. Over time, this imprecise fitment causes a back-and-forth rattling motion that can result in the tabs shearing off inside the engine, risking catastrophic damage or complete engine failure. Unlike other aftermarket solutions that require full VANOS disassembly, retiming, or replacement of the oil pump disk, the Turner Motorsport S54 VANOS Hub Upgrade offers a smarter approach. Our bolt-on fix eliminates the common failure point without opening the VANOS unit or disturbing engine timing.

Our solution involves removing the worn tabs from your stock exhaust hub and installing our precision-fit replacement, which is precision-machined from 4340 steel and hardened to meet OEM specifications. Designed using 3D scanning and CAD modeling, the Turner Motorsport VANOS Exhaust Hub Upgrade provides a tight, interference-free fit into the oil pump disc, completely resolving the issue without unnecessary labor.

Features & Benefits:

Direct bolt-on solution for S54 VANOS oil pump drive tab failure, preventing potentially catastrophic damage to engine internals Precision-machined from high-strength 4340 steel and heat-treated to match OEM specifications Designed using 3D scanning and CAD modeling to ensure precise fitment within the OEM oil pump disc Engineered to eliminate the play that exists between the exhaust hub and oil pump disc from factory Backed by extensive real-world testing and our lifetime replacement program! Kit Contents:

Turner Motorsport Exhaust VANOS Hub Upgrade 4x Extended Length Hex Head Bolts (M6x30 Gr. 10.9) 8x OEM BMW VANOS Hub Hex Head Bolts (M6x25) 12x Fillister Head Torx Screw (M6x16) OEM Valve Cover Gasket OEM VANOS to Cylinder Head Gasket