2015 BMW 750i xDrive

The 2015 BMW 750i xDrive is a luxury sedan powered by a 4.4-liter twin-turbocharged V8 engine that produces 445 horsepower and 480 lb-ft of torque. It comes standard with an eight-speed automatic transmission and all-wheel drive. The 750i is known for its spacious cabin, comfortable ride, and impressive performance. However, like any vehicle, it has its share of issues.

Engine

• N63B44TU V8 Engine
  • Wastegate Rattle: The wastegate actuators can rattle at low engine speeds. This is typically caused by a worn wastegate flap or linkage. Replacing the wastegate actuators is the solution. The estimated cost to fix is $1,000 - $2,000+.
  • Turbocharger Failure: The turbochargers can fail prematurely, resulting in a loss of power. Symptoms include decreased engine performance, excessive smoke from the exhaust, and a check engine light. Replacing the turbochargers is the only fix. The cost to fix this issue is $3,000 - $5,000+.
  • VANOS Solenoid Failure: The VANOS solenoids, which control the timing of the camshafts, can fail. This can lead to a rough idle, reduced engine power, and increased fuel consumption. Replacing the failed solenoids is the solution. The estimated cost to fix is $500 - $1,000+.
  • Fuel Injector Failure: The fuel injectors can fail, causing the engine to run poorly or not at all. Symptoms include difficulty starting, engine misfires, and a check engine light. Replacing the failed fuel injectors is the solution. The estimated cost to fix is $500 - $1,500+.

Transmission

• ZF 8HP70 Eight-Speed Automatic Transmission
  • Mechatronic Sleeve Failure: The mechatronic sleeve, which houses the transmission’s electronic control module, can fail. This can result in transmission slipping, delayed shifts, or complete transmission failure. Replacing the mechatronic sleeve solves this issue. The cost to fix is $2,000 - $4,000+.
  • Valve Body Failure: The valve body, which controls the flow of transmission fluid, can fail. This can cause the transmission to shift erratically, slip, or not shift at all. Replacing the valve body is the only solution. The estimated cost to fix is $1,500 - $2,500+.
  • Torque Converter Failure: The torque converter, which transmits power from the engine to the transmission, can fail. Symptoms include shuddering, slipping, or loss of drive. Replacing the torque converter is the only solution. The estimated cost to fix is $2,000 - $3,500+.

Suspension

• Front Control Arm Bushings: The front control arm bushings can wear out prematurely, causing a clunking or rattling noise when driving over bumps. Replacing the worn bushings is the solution. The estimated cost to fix is $500 - $1,000+.
• Rear Air Suspension Failure: The rear air suspension system can fail, causing the rear of the vehicle to sag. This can be caused by a leak in the air bags or a failure of the air compressor. Replacing the failed components solves this issue. The estimated cost to fix is $1,500 - $2,500+.

Electrical

• Battery Discharge: The battery can discharge prematurely, especially when the vehicle is parked for extended periods. This can be caused by a parasitic draw from a faulty electrical component. Identifying and repairing the source of the parasitic draw is the solution. The estimated cost to fix varies depending on the cause of the draw.
• Headlight Flickering: The headlights can flicker or turn off intermittently. This can be caused by a faulty headlight module, ballast, or wiring harness. Replacing the failed component is the solution. The estimated cost to fix is $500 - $1,500+.
• Infotainment System Issues: The infotainment system can experience various issues, such as freezing, crashing, or not responding to inputs. A software update or replacement of the infotainment module is the solution. The estimated cost to fix is $500 - $2,000+.

Exterior

• Cracked Rear Taillights: The rear taillights can crack over time, allowing moisture to enter. Replacing the cracked taillights is the only solution. The estimated cost to fix is $500 - $1,000+.
• Door Handle Failure: The exterior door handles can fail, making it difficult to open the doors. This can be caused by a broken cable or a faulty door handle mechanism. Replacing the failed component is the solution. The estimated cost to fix is $200 - $600+.

Interior

• Ambient Lighting Failure: The ambient lighting in the interior can fail, leaving the cabin dark or dimly lit. This can be caused by a faulty ambient lighting module or wiring harness. Replacing the failed component is the solution. Estimated cost to fix: $500 - $1,000+.
• Panoramic Sunroof Rattling: The panoramic sunroof can rattle or squeak when driving over rough roads. This can be caused by a loose sunroof panel or a worn sunroof seal. Tightening the sunroof panel and/or replacing the seal is the solution. Estimated cost to fix: $500 - $1,000+.
• Rear Seat Ventilation Failure: The rear seat ventilation system can fail, preventing air from flowing through the perforated leather seats. This can be caused by a faulty ventilation module or a blocked air vent. Replacing the failed component is the solution. Estimated cost to fix: $500 - $1,500+.

Recalls

• NHTSA Recall Number: 19V-684
• NHTSA Recall Number: 18V-677
• NHTSA Recall Number: 18V-674
• NHTSA Recall Number: 17V-029

Summary The 2015 BMW 750i xDrive is a luxurious and high-performance sedan, but it is not without its issues. The most common problems reported by owners include engine issues, transmission issues, suspension issues, electrical issues, and interior issues. The severity and cost of these issues vary, but some can be costly to repair.