The 2006 BMW 325i is equipped with BMW’s N52B30 3.0-liter naturally aspirated inline-6 engine. This aluminum engine produces 215 horsepower and 185 lb-ft of torque, featuring BMW’s Double-VANOS variable valve timing system and Valvetronic variable valve lift technology. The N52 was BMW’s first magnesium-aluminum composite engine block, making it significantly lighter than its iron-block predecessor. It uses a sophisticated engine management system and requires premium fuel for optimal performance. The engine is known for its smooth power delivery and relatively good fuel economy for its size, achieving approximately 20 mpg city and 30 mpg highway when properly maintained.

The 2006 BMW 325i shares most parts with other E90 generation 3 Series models from 2006-2011, particularly the 325i, 328i, and 330i variants. Engine components from the N52 3.0L are interchangeable across 2006-2010 325i and 328i models, as well as some X3 and Z4 models with the same engine. Body panels, interior components, and suspension parts are generally compatible within the E90 sedan generation (2006-2011). However, there were mid-cycle updates in 2009 that changed some electrical components and interior trim pieces. Transmission parts vary depending on whether the vehicle has manual or automatic transmission. Always verify part numbers and VIN compatibility, as BMW made running changes throughout production that can affect fitment even within the same model year.

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 N52 3.0L engine in the 2006 BMW 325i is generally considered one of BMW’s more reliable modern engines, but it does have known weak points. When properly maintained with regular oil changes using BMW-approved synthetic oil, the engine can easily exceed 200,000 miles. The major reliability concerns center around the VANOS system, water pump, and oil filter housing gasket, which are common failure points. Regular maintenance is crucial – this includes replacing the water pump proactively around 60,000 miles and addressing VANOS issues early. The engine responds well to premium fuel and doesn’t tolerate neglect. Overall, it’s a solid powerplant that rewards proper care but can be expensive to repair when major components fail.