CSF 7046 BMW N54/N55 Uprated Performance Alloy/Aluminum Radiator – Triple-Pass Dual-Row Direct-Fit – E82/E88 135i, E90/E92/E93 335i/xi/335is/xDrive, E89 Z4 30i/35i/35is – Automatic & DCT – Heavy-Duty Race Track Cooling Upgrade

CSF 7046 Uprated Alloy Cooling Radiator for BMW N54 and N55 Auto and DCT

Unlock reliable, repeatable cooling performance for your turbocharged BMW with the CSF 7046 high-capacity alloy radiator. Built for enthusiasts who demand lower coolant temps, stronger thermal control and OEM-style fitment, this premium heat exchanger is a direct replacement for auto gearbox and dual-clutch variants of the 1 Series, 3 Series and Z4 using the N54 or N55 engine.

We run this radiator on our own cars and customer builds and the results speak for themselves. Faster recovery between pulls, reduced heat soak in traffic, and rock-solid temps on spirited drives and track days. If you are chasing dependable cooling on a remapped or hard-driven car, this is the upgrade you want.

Why it works

• Two row, triple pass core for exceptional heat rejection and stable outlet temperatures
• CNC machined mounts and hardware for a secure, rattle free install
• Mirror polished aluminium for a premium look in the bay
• Direct replacement in the factory location with no cutting required
• Optimised for tuned N54 and N55 engines, daily use, fast road and circuit work
• Engineered specifically for automatic and DCT models
• Backed by a 2 year CSF Radiators warranty

What you can expect

• Consistent coolant control during hot weather, back to back pulls and long stints
• Improved headroom for power increases and reliability on tuned cars
• Clean, OEM style installation with factory shrouds and hoses
• Show quality finish that matches the performance

Fitment

For N54 and N55 powered BMWs with automatic transmission or DCT:

• BMW 1 Series E82 and E88 135i
• BMW 3 Series E90 saloon, E92 coupé, E93 convertible 335i, 335is and xDrive variants
• BMW Z4 E89 sDrive30i, sDrive35i, sDrive35is

Engine codes: N54 and N55. Chassis: E82, E88, E90, E92, E93, E89. If you are unsure, we will verify compatibility before shipping.

Part number

CSF 7046

Installation

Professional fitting available at MJ Modifications in Warwickshire. For a tailored installation quote or to book workshop time, email info@mjmodifications.co.uk.

Compatibility check before dispatch

Provide your UK registration or the last 7 of your VIN at checkout and we will confirm fitment prior to dispatch.

Warranty

2 years CSF Radiators warranty

Customer feedback

Our customers consistently report noticeable drops in coolant temps, quicker recovery between runs and confidence inspiring stability on long drives and track sessions. We use and recommend this CSF radiator because it delivers.

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