Radiator for BMW 328i (2007-2013) 3.0L

Direct-Fit Replacement Radiator for 2007-2013 BMW 3 Series (E90/E91/E92/E93)

What it Does: The replacement radiator restores reliable heat exchange in the 2007-2013 BMW 3 Series cooling loop to stabilize operating temperatures and prevent thermal breakdown.

The Stock BMW 3 Series Cooling Weakness

Factory cooling systems on the E90 platform endure intense thermal cycling that degrades the composite polymer end tanks and perimeter crimp gaskets over time. Operating with high system pressures, original radiators frequently develop micro-fractures along the upper hose neck, brittle tank walls, and core-to-tank seams. This leads to chronic loss of coolant, unmetered pressure drops, and severe overheating. Left unaddressed, localized boiling and coolant starvation will quickly result in warped aluminum cylinder heads, scored cylinder bores, and blown head gaskets on the naturally aspirated straight-six.

The Engineering Solution

Engineered to exact OEM dimensions, this direct-fit crossflow heat exchanger replaces fatigued components with a brazed aluminum core featuring high-density louvered cooling fins. This geometry accelerates convective heat dissipation away from the internal cooling tubes without restricting frontal airflow to the condenser. Precision-molded end tanks match the factory port locations and bracketry exactly, allowing seamless integration with OEM quick-disconnect hoses, cooling fan shrouds, and auxiliary transmission coolers on both automatic and manual models. Every production unit undergoes rigorous submerged pneumatic pressure testing to guarantee leak-free containment under high-rpm thermal loads.

What's Included

• 1 Radiator

Technical Specifications

Compatibility

• 2007-2013 BMW 328i 3.0L
• 2009-2013 BMW 328i xDrive 3.0L

Frequently Asked Questions & Fitment Warnings

Does this fit the E90 3 Series?

Yes, this is a direct fit for the 2007-2013 BMW 3 Series equipped with the N51 or N52 3.0L inline-six engine across rear-wheel-drive and xDrive configurations.

Do I need to bleed the cooling system after replacement?

Yes, you must perform the automated electric water pump bleed cycle to purge trapped air and avoid hot spots before operating the vehicle.

The BMW Precision Standard

Preserve factory thermal equilibrium with a cooling assembly engineered to meet rigorous European tolerances, safeguarding engine components without warning lights or fitment alterations.