Performance M
Dinan High-Capacity Engine Oil Cooler / Oil Radiator Kit for BMW 3 Series E90 335i & 335i xDrive AWD (N54 3.0 Twin Turbo) 2007-2008 - Sedan/Saloon - Retrofit for Cars Without Factory OE Oil Cooler
Dinan High-Capacity Engine Oil Cooler / Oil Radiator Kit for BMW 3 Series E90 335i & 335i xDrive AWD (N54 3.0 Twin Turbo) 2007-2008 - Sedan/Saloon - Retrofit for Cars Without Factory OE Oil Cooler
Heads-up on cancellations & returns: if you cancel an order or return an item, you won't get back 100% of what you paid. We apply a 10% restocking fee, the outbound shipping is non-refundable, and we have to pass on Shopify / PayPal payment processing fees; these aren't returned to us when we refund you. International orders also lose on exchange-rate spread in both directions. If the original packaging is damaged or missing, a reboxing charge applies. For international orders specifically, if you refuse to pay our shipping invoice or supply a prepaid label after placing the order, the same deductions apply. We're upfront about this — please be sure of your purchase before ordering.
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Dinan Performance Oil Cooling System for BMW 3 Series E90 335i 3.0 Twin Turbo N54 2007 to 2008 - for vehicles without OE oil cooler
Struggling with soaring oil temps on your N54 saloon during fast road driving or track sessions? This Dinan performance oil cooling system is the proven thermal management upgrade that stabilises temperatures, protects the engine and keeps power delivery consistent. Built around a larger, more efficient heat exchanger, it is designed specifically for E90 335i models that did not receive an oil cooler from the factory, delivering reliable oil temperature control and confidence when you push on.
Why this Dinan upgrade stands out
- High volume, high efficiency heat exchanger engineered for the 3.0 twin turbo N54 to manage lubrication temperatures under load.
- Reduces heat soak and helps prevent reduced power mode when driving hard on road or track.
- Optimised for tuned and stock setups alike - ideal alongside performance software, intake and exhaust upgrades that raise thermal demand.
- Developed by Dinan for E90 335i platforms that left the factory without an oil cooling circuit.
- Confidence-inspiring temperature control for spirited B-road blasts, motorway pulls and sustained high-speed use.
Who is it for
- Drivers who want consistent performance from their N54 without heat-related fade.
- Owners of non oil-cooler E90 335i models seeking a reliable, bolt-on cooling solution from a trusted brand.
- Track day and fast road enthusiasts looking to safeguard engine health and oil viscosity.
Compatibility
- BMW E90 3 Series 335i Saloon 2007 to 2008
- 335i and 335i xDrive AWD models
- N54 twin turbo petrol
- For cars without a factory-fitted oil cooler
Real-world results
We have run this Dinan system on our own builds and supplied it to many satisfied customers. The feedback is consistent - lower oil temps, stable performance and peace of mind when the car is driven hard. It is a smart upgrade that simply works.
Professional fitting available
For best results, have this cooling system installed by specialists. MJ Modifications in Warwickshire offers expert fitting - request a quote at info@mjmodifications.co.uk.
Helpful search terms
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Note: Please confirm your vehicle does not have a factory oil cooler before ordering.
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