The 2011 BMW 550i is equipped with BMW’s N63 4.4-liter twin-turbocharged V8 engine, producing 400 horsepower and 450 lb-ft of torque. This direct-injection engine features BMW’s TwinPower Turbo technology with two parallel turbochargers and Valvetronic variable valve timing. The N63 was BMW’s first production V8 to combine direct injection with twin turbocharging, delivering impressive performance with 0-60 mph acceleration in just 5.0 seconds. However, this engine is known for several reliability issues including timing chain problems, turbocharger failures, and excessive oil consumption, making it one of BMW’s more problematic powertrains from this era.

The 2011 BMW 550i shares most parts with other F10 5 Series models from 2010-2016, though some components changed during the 2014 LCI (Life Cycle Impulse) refresh. Engine parts from the N63 4.4L V8 are compatible across 2010-2016 550i models, as well as 2010-2016 X5 xDrive50i, X6 xDrive50i, and 2012-2015 750i models that used the same N63 engine. Body panels, interior components, and most mechanical parts interchange within the F10 generation. However, be aware that BMW made running changes throughout production, so VIN verification is recommended for critical components like electronic modules, which may have different part numbers based on production date and software versions.

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 N63 4.4L twin-turbo V8 in the 2011 BMW 550i is unfortunately one of BMW’s least reliable engines, earning a poor reputation for multiple serious issues. Common problems include timing chain stretch, turbocharger failures, valve stem seal deterioration causing excessive oil consumption, and high-pressure fuel pump failures. These issues typically manifest between 60,000-100,000 miles and can be extremely expensive to repair. If you own one, maintain it religiously with frequent oil changes using BMW-approved oil, monitor oil levels closely, and address any warning signs immediately. Many owners report repair bills exceeding the vehicle’s value, making this engine a significant financial risk for high-mileage examples.