Mishimoto BMW S54 PERFORMANCE ALUMINIUM RADIATOR E46 M3

SKU: MMRAD-E46-01 Categories: , , , , , , , Tags: , ,

739.99€

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In Stock - Available from Supplier Dispatch between 25 September - 2 October.
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EASY RETURNS
SECURE SHOPPING
24/7 SUPPORT

The S54 is an incredible feat of engineering. Smooth power delivery, individual throttle bodies, and an 8,000 rpm redline makes for an unforgettable driving experience. As with any BMW, maintenance is key to extending the life of your vehicle and ensuring that you’re getting a driving experience rivaled by very few other vehicles on the road. As many of these vehicles see frequent track time, the team at Mishimoto felt a need to develop a S54 performance aluminium radiator that would not only provide improved durability, but also deliver the efficiency needed for track driving. Our team of engineers developed an extremely dense core on this E46 M3 radiator, that provides a greater number of coolant tubes and a very dense fin composition. This allows for more heat-transfer contact points which results in greater heat exchange and improved efficiency. Additionally, this dense core provides a 32% increase in coolant surface area, a 15% increase in air surface area, and a 25% increase in coolant capacity. All these factors contribute to lower temperatures and greater heat rejection, ideal for those in warm climates and track use. This BMW radiator is designed as a complete bolt-in fit, requiring no modification for fitment with the stock fan and shrouding. Our S54 performance aluminium radiator end tanks are constructed from high-quality aluminium TIG-welded to a 100% brazed aluminium core. Not only does this aid in heat transfer, but it also provides the reliability needed for years of service. Pair this E46 M3 radiator with the Mishimoto BMW E46 M3 Silicone Radiator Hose Kit for added durability over your stock rubber hoses. This BMW radiator is compatible with most aftermarket supercharger kits, providing the cooling power needed for power levels above stock. As with all our BMW parts, the Mishimoto E46 M3 S54 Performance aluminium Radiator includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship. For more information about the development process, check out our build thread on our engineering blog!

KEY FEATURES

  • Direct fit for the 2001–2006 BMW E46 M3
  • Fully brazed aluminium core with TIG-welded end tanks
  • Fits perfectly with stock clutch fan or Mishimoto electric fan shroud
  • Precision designed
  • CNC-machined quick-disconnect fittings mate perfectly with stock hoses
  • Track-tested design
  • 32% increase in coolant surface area
  • 15% increase in air surface area
  • 25% increase in coolant capacity
  • Works with most aftermarket supercharger kits
  • Includes fan tool for clutch fan removal
  • 1/8″ NPT port for easy installation of sensors
  • Mishimoto Lifetime Warranty

APPLICATIONS

  • BMW M3 I6 (3.2L) 2001-2006

Will fit models equipped with S54 engines.

PURCHASE INCLUDES

DOWNLOADS

Engineering Report

PdfEngineering Report(Size: 662.3 KB)

Installation Guides

PdfInstallation Guides(Size: 816.3 KB)

WARRANTY

Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.

For our complete warranty policy, please click here.

ADDITIONAL INFORMATION:

Brand

Colour

Silver

PREPREG is a common term for a reinforcing fabric such carbon which has been pre-impregnated with a resin system. This resin system (typically epoxy) already includes the proper curing agent. As a result, the prepreg is ready to be laid into the mold without the addition of any more resin. In order for the laminate to cure, an autoclave production process is used, a combination of high pressure and heat.

  • Maximum strength and performance characterictics. In a hand layup production process, it is difficult to achieve 50% fabric and 50% resin content.  Typical hand laminates, even when vacuum bagged, end up with a significant amount of excess resin. Excess resin increases brittleness and reduces overall strength properties. On the other hand, most prepregs contain around 35% resin. This is ideal for maximum cured properties and generally impossible to achieve in normal hand lamination.
  • Uniformity and repeatability. The prepreg is of uniform thickness and each part coming out of the mold may theoretically be the same. Vacuum bagging technology may have some errors in processing, but prepreg ensures production consistency.
  • Reduce curing time. After the thermal curing cycle, no need to wait for the standard 48 hours can be fully cured.
  • Aesthetics. Although prepreg processing still requires mold preparation and demoulding, prepreg processing eliminates air bubbles, makes it easier to obtain a smooth, glossy surface as well as eliminates any seaming lines.

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We offer free tracked shipping on all orders within mainland EU. Orders to remote areas such as Malta, Cyprus, and Iceland may incur a surcharge. Worldwide shipping is also available—please contact us for a quote.

Most orders dispatch within one business day (Monday to Friday). EU delivery takes 3–5 working days from dispatch, and tracking details will be provided via email once your order has shipped.

Please note that import taxes may apply outside the EU, and these are the responsibility of the buyer. Some items may ship directly from our suppliers and may have varying delivery times. If an item is out of stock, we will contact you to discuss the available options.

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RETURNS

Changed your mind? You can return unused, uninstalled items in original packaging within 30 days of delivery. Return shipping is the customer’s responsibility unless the item is faulty.

Custom, used, or built-to-order items are non-returnable.

Once we receive and inspect your return, refunds are typically processed within 10 business days.

If your item is damaged or incorrect, contact us within 48 hours with photos and order details.

📄 View full refund policy

WARRANTY

All VA and VA Motorsports products come with a 1-year limited warranty covering manufacturing defects and fitment issues. For third-party items, warranty terms vary by brand—please check the product listing or contact us for details.

This warranty does not cover wear and tear, incorrect installation, cosmetic damage, labor, or third-party costs.

To start a claim, email us with your order number, issue description, and photos. If the claim is approved, we’ll offer a replacement, store credit, or a refund.

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FREQUENTLY ASKED QUESTIONS (Faq)

Yes, we do ship worldwide. However, we recommend contacting us before placing your order, as the price only covers the product and does not include shipping costs

Each product listing includes detailed compatibility information. Please review it carefully to ensure the part fits your specific vehicle model and year. If you’re unsure, feel free to contact us with your vehicle details, and we’ll be happy to assist you.

Yes, we do provide this service in our workshop. Our skilled technicians can professionally install your body styling and performance parts to ensure a perfect fit and optimal performance. Please contact us to schedule an appointment or for more information.

Yes, customers within mainland EU can enjoy free shipping on all orders. However, in rare cases, customers from non-EU or remote areas may be contacted about an additional shipping fee. For further questions, feel free to contact us.

Shipping times vary based on your location and the product ordered.

Take note, that in-stock products will be shipped the next working day. Otherwise, your order will be dispatched as stated on its product information.

For customers within the EU, delivery typically takes 3-5 working days from the dispatch date.

For international customers, orders are generally delivered within 5-10 working days from the dispatch date.

We accept returns on unused and uninstalled items within 14 days of purchase. The product must be in its original packaging and condition. Shipping fees are non-refundable, and return shipping costs are the buyer's responsibility.

Mishimoto BMW S54 PERFORMANCE ALUMINIUM RADIATOR E46 M3
Mishimoto BMW S54 PERFORMANCE ALUMINIUM RADIATOR E46 M3