BMW Intake Parts for BMW 5 Series E39 (1996-2003)

Turner Motorsport BMW Air Flow Sensor

Introducing the BMW Air Flow Sensor by Turner Motorsport, a crucial component influencing fuel mixture for optimal engine performance. If your sensor malfunctions, it can lead to poor performance and decreased fuel efficiency. Upgrade today to experience improved mileage and restored engine performance. Easy installation with basic hand tools makes it convenient for BMW owners to enjoy these benefits.

Benefits:

• Restores mileage and performance
• Addresses common BMW engine running issues
• Optimizes fuel economy
• Easy installation with basic hand tools

Replace your air flow sensor every 2-3 years to enhance engine smoothness and fuel efficiency.

A bad DISA valve can cause a variety of issues, from a loud racket in the engine bay, hesitation at low rpm and a rough idle with lean codes.

If the valve is making a loud noise, we recommend replacing it as soon as possible. It is possible for the pin holding the flap to be sucked into the motor causing serious damage.

Very easy to replace, just need to undo the 4 bolts holding it to the intake manifold.

Includes new mounting hardware

This is a drop-in stock replacement aFe performance air filter that installs into your BMW's factory airbox. This version uses aFe's highest flowing filter media, which uses a lightly oil gauze to filter out dirt and particulates, while allowing more air to flow to the intake. For the best flowing filter, with the best performance gain, we always recommend this standard aFe filter media (often called "Pro5R ", which has a blue pre-oiled filter media). We also carry this filter in the "ProDry" grey filter media, which is oil-free for only slightly less performance and no maintenance.

Fits the following BMWs:
E36 323i 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 1992-1998
E46 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 1999-2005
E39 525i 528i 530i 1997-2003
E83 X3 2.5i X3 3.0i 2004-2006
Z3 2.3 2.5 2.8 3.0 1997-2002
E85 Z4 2.5i Z4 3.0i M54 engine 2004-2006

Ensure optimal engine performance with the replacement of your vacuum system hoses. The vacuum system plays a crucial role in the engine's functionality, transforming it into an efficient pump that influences air-fuel mixture and combustion. Damaged vacuum hoses can lead to various performance issues, from rough idle to difficulties starting the engine. If you're experiencing these issues, it's time to upgrade to this plastic hose with a 2.3mm inner diameter. The hose is black, arrives in an 8-foot section, and can be easily cut to the desired size for a perfect fit.

Key Features:

• Engine Optimization: Replacing old hoses ensures the vacuum system operates at peak performance.
• 2.3mm Inner Diameter: Designed to meet specific engine requirements.
• Black Color: Blends seamlessly with the engine components.
• 8-Foot Section: Provides flexibility to cut the hose to the required length.
• Easy Installation: Upgrade without hassle for improved engine efficiency.

Upgrade your vacuum system with this high-quality plastic hose, addressing performance issues and ensuring your engine runs smoothly.

The mass air flow sensor measures the amount of air flow to tell the computer how much fuel to add to the mixture. If the MAF sensor malfunctions, there could be too much or too little fuel added to the mixture. Restore performance and fuel mileage with a high quality Bosch replacement. OEM replacement for BMW part # 13621433567 for M62 engines. For vehicles with a production date from 09/1998.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

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 the following vehicles:
09/1998+ E39 BMW 540i
09/1998+ E38 BMW 740i/iL
09/1998+ E53 BMW X5 4.4i 4.6is 
09/1998+ E52 BMW Z8

Since 1999, aFe (Advanced FLOW Engineering) has been developing and manufacturing high quality accessories in their facility in Corona, California. Starting with air filters and intake systems, and now expanding into exhaust systems, suspension components, tuning modules, and more, aFe products are a great way to improve the performance of your BMW without altering its fundamental character. Owned by a BMW enthusiast, aFe power is recognized the world over as a leader in quality performance products for your BMW.

This is a drop-in stock replacement aFe performance air filter that installs into your BMW's factory airbox. This particular filter fits the following BMWs:

E31 8 series: 840i 840ci 1991-1999
E32 7 series: 740i 740il 1993-1994
E34 5 series : 530i 530i Wagon 540i 1993-1995
E34: M5 1991-1993
E39: M5 2000-2003
E53 X5 : X5 4.4i 4.6is 4.8is
Z8 : Z8

This version has an oil-free filter media for less maintenance. For the best flowing filter, with the best performance gain, we always recommend the standard aFe "Pro5R " filter (which has a blue pre-oiled filter media), but this oil-free filter flows only slightly less than the blue Pro5R style aFe filter, and requires no re-oiling after cleaning the filter.

Ensure smooth idling for your BMW's M50, M52, or M54 engine with the Turner Motorsport Genuine Idle Control Valve. This essential component, located in the intake system, plays a crucial role in regulating the engine's idle speed and air intake.

• Genuine BMW part ensures quality and compatibility
• Prevents idle issues and irregular engine behavior
• Optimizes engine performance and fuel efficiency
• Easy replacement for hassle-free maintenance

Boost airflow and unleash a deeper induction sound to rekindle the excitement of driving your BMW E39 525i.

The Luft-Technik Intake System from ECS Tuning is purpose-built for M52TU and M54-powered 525i / 528I models, offering a performance upgrade that overcomes the restrictive factory airbox while maintaining a precise, factory-like fit. ECS Tuning engineered this system around the unique mounting geometry of the E39 chassis, ensuring an effortless bolt-on installation that integrates seamlessly with OEM components.

This performance intake features a high-flow conical air filter housed in a powder-coated aluminum heat shield, designed to seal against the hood and make full use of the factory inlet ducting. By drawing in cooler outside air, the system helps reduce intake temperatures for denser combustion and improved efficiency. A reinforced silicone intake elbow and a precision-engineered MAF housing keep the stock sensor in its proper location while smoothing airflow and reducing turbulence.

The results are immediately noticeable: quicker throttle response, a throatier intake growl, and a cleaner, performance-focused look under the hood. Built with premium materials such as stainless-steel hardware and heat-resistant silicone, ECS Tuning’s Luft-Technik Intake delivers both durability and long-term performance.

For BMW E39 525i / 528I drivers who want OE-level fitment with the benefits of sharper response, enhanced induction noise, and improved airflow, the Luft-Technik Intake by ECS Tuning is a must-have upgrade.

Key features:

21% increase in flow over the stock intake
Seals to the hood for the largest and coldest air space.
Unrestricted air flow for maximum induction noise.
The heat shield is designed to fit the E39 chassis perfectly, utilizing factory mounting locations, and creates a colder air pocket where the factory inlet duct is.
5052 powder-coated aluminum heatshield, stiff, corrosion-resistant, and finished for a long life in the swap environment.
The black silicone intake elbow and coupler is a compliant, high-temperature silicone that grips clamps and resists blow-off during repeated fitment and heat cycles.
Retains factory MAF
Stainless-steel hardware for longevity and corrosion resistance.
Fitment & compatibility:

Specifically engineered to work with utilizing that maximum air space and retaining the OEM cold air inlet. Mounts to the factory frame rail, no modification required.

Tailored to the M54B25 found in the 5-series chassis.

Kit Contents:

Heat Shield
Silicone Throttle Body Boot
MAF Mount
Silicone MAF Coupler
Inlet/Air Filter Adapter
Hi-flow ECS Conical Air Filter
E39 Specific Heat Shield Mount
Hardware for installation
Product Development: The Luft-Technik Intake System was designed, engineered, tested, and quality inspected by ECS Tuning's Research and Development team. Their process incorporates industry-leading tools and methods, including FARO laser scanning for reverse engineering and quality assurance, SolidWorks 3D CAD modeling, in-house 3D printing for rapid prototyping, and rigorous long-term product testing. Performance data is validated using both a Mustang AWD 500 SE in-ground dyno and a Superflow SF-750 Flowbench to ensure precision and reliability.

Installation and support: - Click HERE for Installation Instructions -