Dinan Engine Oil Cooler Radiator Kit - BMW E90 3 Series 335i 2009-2010 N54 Twin Turbo - High Capacity Performance Cooling Upgrade/Retrofit - For Cars Without Factory/OEM Oil Cooler - Fits 335i RWD & 335i xDrive AWD Sedan/Saloon, Track Day Ready

Dinan Uprated Engine Oil Radiator Package for BMW E90 335i 2009 to 2010

Give your N54 twin turbo 3.0 BMW the oil temperature control it deserves. This Dinan uprated oil cooling package is designed for E90 3 Series 335i saloon models that were not supplied with an OE oil radiator from the factory. It delivers stronger thermal management for fast road use and track days, helping maintain stable oil temps under sustained load so the car keeps pulling hard without heat soak or limp-home issues.

We have installed and used this system ourselves and customer feedback has been consistently excellent. Expect noticeably cooler, more consistent oil temperatures and repeatable performance during spirited driving.

Key benefits

• High-efficiency oil radiator core engineered by Dinan for superior heat rejection
• Stabilises oil temperatures under hard acceleration, long pulls and circuit use
• Helps protect bearings and turbochargers by keeping viscosity in the sweet spot
• Ideal for remapped and stock N54 engines where extra thermal headroom is essential
• Vehicle-specific hardware for a precise, OEM-like installation
• Proven reliability upgrade for fast road, track day and motorway driving

Compatibility

For cars not factory-equipped with an oil radiator.

Fits BMW 3 Series E90 335i and 335i xDrive saloon, model years 2009 to 2010, N54 petrol. Please confirm with your VIN before ordering.

Why this upgrade

• Reduces the risk of heat-induced power fade and temperature-related limp mode
• Improves consistency during back-to-back pulls and extended sessions
• A smart preventive upgrade for longevity on tuned or hard-driven cars

Installation

Professional fitting is recommended. MJ Modifications in Warwickshire offer expert installation and setup. Request a fitting quote at info@mjmodifications.co.uk.

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