The 2006 BMW 325i is equipped with BMW’s N52B30 3.0-liter naturally aspirated inline-6 engine, producing 215 horsepower and 185 lb-ft of torque. This engine features BMW’s advanced Valvetronic variable valve lift system and Double-VANOS variable valve timing on both intake and exhaust camshafts. The N52 was BMW’s first magnesium-aluminum composite engine block, making it significantly lighter than previous iron block designs. It uses a sophisticated engine management system and requires premium fuel for optimal performance. The engine is known for its smooth power delivery and refined operation typical of BMW inline-6 engines, though it requires diligent maintenance of its complex variable valve timing systems.

The 2006 BMW 325i shares most parts with other E90/E91/E92/E93 3 Series models from 2006-2011, particularly other N52 engine equipped vehicles like the 325i, 328i, and 330i from this generation. Many engine components are interchangeable with 2007-2010 328i models that used the same N52B30 engine. Body panels and interior parts generally fit 2006-2008 sedans specifically, though some components work across the entire E90 generation through 2011. Suspension components, brakes, and many electrical parts interchange well within the E90 platform. However, there were mid-cycle updates in 2009 that changed some electronic modules and trim pieces, so verification is recommended for specific components.

Parts availability changes daily. Call us at (603) 392-7313 or visit our online shop to check current inventory from this specific vehicle. If we have sold a part you need, our Parts Broker service can source it from our network of partner yards nationwide.

Yes! We ship parts from this vehicle and our entire inventory nationwide. Most orders ship within 1-2 business days via FedEx or freight carriers for larger components like engines and transmissions. Call (603) 392-7313 for a shipping quote on any part.

The N52B30 3.0L inline-6 in the 2006 325i is generally considered one of BMW’s more reliable modern engines when properly maintained. The engine itself is robust and can easily exceed 200,000 miles with regular oil changes using BMW-approved synthetic oil. However, the complex VANOS variable valve timing system is the engine’s primary weakness, requiring expensive repairs around 100,000 miles. The cooling system components, particularly the water pump and expansion tank, need proactive replacement to prevent overheating damage. Regular maintenance of the oil filter housing gasket and valve cover gasket prevents oil leaks. Overall, this engine rewards diligent maintenance with excellent longevity and performance, but neglect can lead to costly repairs.