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Description

BMW E46 M3 S54 (01-06) Mishimoto aluminium radiator

The Mishimoto radiator E46 M3 is an aluminium performance radiator for the BMW E46 M3 with S54 engine from 2001 to 2006. Mishimoto developed it specifically for M3s that see a lot of track time, with an extra dense core featuring more coolant tubes and a finer fin structure than stock.

As a result the radiator has 32 percent more coolant surface area, 15 percent more air surface area and 25 percent more capacity. It is a complete bolt-in replacement that fits without modification with the stock clutch fan and shroud, as well as the Mishimoto electric fan shroud. It also works with most supercharger kits.

Key benefits

• Direct fit for the BMW E46 M3 (2001-2006)
• Dense core with 32 percent more coolant surface and 15 percent more air surface
• 25 percent more coolant than the stock radiator
• Brazed aluminium core with TIG-welded end tanks
• CNC-machined quick-disconnect fittings for the stock hoses
• Fits the stock clutch fan or the Mishimoto electric fan shroud
• Works with most supercharger kits
• 1/8 inch NPT port for an extra sensor, plus fan tool included

Suitable for

BMW E46 M3 with S54 engine

• Model years 2001 to 2006
• Engine: S54
• Coupe and convertible
• For the E46 non-M Mishimoto offers separate radiators for manual and automatic

Technical specifications

• Manufacturer: Mishimoto
• Part number: MMRAD-E46-01
• Material: brazed aluminium core, TIG-welded aluminium end tanks
• Rows: 2
• Core thickness: 48 mm
• Core size: 580 x 410 mm
• Overall size: 696 x 432 x 112 mm
• Sensor port: 1/8 inch NPT
• Included: radiator, fan tool, black 1/8 inch NPT plug, 5 flange bolts M6 x 1.0 x 16 mm

Installation and delivery

The radiator is a bolt-in replacement for the original and requires no changes to fan or shroud. With the included tool you can easily remove the clutch fan. Mishimoto rates the installation as medium. After installation, fill the system with good quality coolant and bleed it carefully. The installation guide and engineering report are available below. Lead time: 4 to 7 days.

A track-tested aluminium radiator with an extra dense core: keeping the S54 cool all the way to 8,000 rpm.

Why choose this Mishimoto radiator E46 M3?

The S54 is a beautiful but hot engine, and the original radiator with plastic tanks becomes a risk over the years. This aluminium radiator is track-tested, cools better thanks to its dense core and lasts for years. Ideal for hot days, track days and supercharged engines, with Mishimoto’s lifetime warranty.

Frequently asked questions

Does the radiator fit my stock fan?

Yes. The Mishimoto radiator E46 M3 fits without modification with the stock clutch fan and shroud, as well as the Mishimoto electric fan shroud.

Can I combine it with a supercharger kit?

According to Mishimoto, the radiator works with most supercharger kits for the E46 M3.

What is in the box?

The radiator, a tool to remove the clutch fan, a 1/8 inch NPT plug and five M6 flange bolts.

What is the lead time?

The lead time is 4 to 7 days.

Downloads and documentation

Installation guide Mishimoto radiator E46 M3 (PDF, English)
Engineering report Mishimoto radiator E46 M3 (PDF, English)

Delivery outside the European Union: different shipping costs may apply. Don’t worry: we will email you as soon as possible after your order and agree the shipping with you. You are not committed to anything without your consent.