Performance M
Dinan High Capacity Oil Cooler Kit for BMW 1 Series 135i (2008-2010) E82 E88 N54 - Direct-Fit Performance Oil Cooling Upgrade for Coupe/Convertible
Dinan High Capacity Oil Cooler Kit for BMW 1 Series 135i (2008-2010) E82 E88 N54 - Direct-Fit Performance Oil Cooling Upgrade for Coupe/Convertible
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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Uprated Engine Oil Cooler Kit for BMW 135i N54 E82 E88 2008 to 2010
Keep your N54-powered 135i running cool, consistent and confidence-inspiring on fast road and circuit. This Dinan high-capacity engine oil radiator is a bolt-on replacement that dramatically improves heat management under hard use, remapped power levels and sustained boost, helping you avoid heat soak, protect bearings and maintain repeatable performance.
Why this uprated oil cooling system stands out
- Significant increase in oil cooling capability for demanding driving and track sessions
- Plug-in replacement for E82 coupe and E88 cabriolet 135i models 2008 to 2010 with the N54 twin-turbo engine
- Motorsport-grade convoluted PTFE hoses with a durable polyester braid for excellent flow and resilience
- Premium fittings engineered for leak resistant operation
- Air guide ducting built in to maximise airflow through the core
- Enlarged outlet to the wing area to move hot air out more efficiently
Proven cooling gains vs factory hardware
- Total oil volume: stock 9.5 oz vs Dinan 19 oz
- External surface area: stock 45 sq in vs Dinan 67.5 sq in
- Cooling tubes: stock 10 vs Dinan 23
- Total tube length: stock 90 in vs Dinan 207 in
- Tube internal area: stock 112.5 sq in vs Dinan 414 sq in
On road and on track these improvements translate to lower oil temperatures, less thermal stress and stable power delivery pull after pull. Ideal for tuned cars, spirited use and anyone preparing a 135i for track days.
Compatibility
- BMW 1 Series 135i E82 Coupe 2008 to 2010 - N54 3.0 twin-turbo
- BMW 1 Series 135i E88 Convertible 2008 to 2010 - N54 3.0 twin-turbo
What you get
- Dinan high-capacity oil cooler core
- Convoluted PTFE braided line set
- Quality fittings and hardware
- Integrated inlet ducting and enlarged outlet section
Installation and support
Designed to mount neatly in the factory position for an OEM-like install. For professional fitting, book with MJ Modifications in Warwickshire. Request a quote at info@mjmodifications.co.uk.
Our experience
We have fitted and used this Dinan cooler on customer 135i builds and have been genuinely impressed. Owners report rock-steady oil temps during back-to-back runs and far greater confidence during long sessions on circuit.
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Order today to keep your 135i cool and performing at its best.
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