2015 BMW 750Li xDrive

The 2015 BMW 750Li xDrive is a luxurious and technologically advanced sedan that offers a blend of performance and comfort. The 750Li xDrive is equipped with a 4.4-liter TwinPower Turbo V8 engine producing 445 horsepower and 480 lb-ft of torque. Other engine options included a 3.0-liter inline-6 and a 6.0-liter V12. The standard transmission is an 8-speed automatic. Owners often praise the car’s smooth ride, powerful engine, and upscale interior. Common dislikes include the high cost of maintenance, complex electronics that can be prone to issues, and the car’s depreciation.

Engine

4.4L TwinPower Turbo V8 (N63TU)

• Oil Leaks
  • Description/Symptoms: Oil leaks commonly occur from the valve cover gaskets, oil pan gasket, and turbocharger oil lines. Symptoms include visible oil leaks under the car, burning oil smell, and low oil level warnings.
  • Solution: Replacing the affected gaskets or lines is necessary.
  • Estimated Cost to Fix: $500 - $2,000+ depending on the location of the leak and labor costs.
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Coolant leaks around the coolant transfer pipe (the “valley pan”), water pump, or radiator hoses. Symptoms include low coolant level, overheating, and visible coolant leaks.
  • Solution: Replace the faulty coolant pipe, water pump, or radiator hoses.
  • Estimated Cost to Fix: $800 - $3,000+ depending on the location of the leak and labor costs.
  • Recalls: None Found
• Turbocharger Failure
  • Description/Symptoms: Whining noises from the engine, loss of power, and potentially check engine lights related to boost pressure.
  • Solution: Replacement of the turbocharger(s).
  • Estimated Cost to Fix: $3,000 - $6,000+ depending on if one or both need replacement.
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP)

• Rough Shifting/Hesitation
  • Description/Symptoms: Rough or delayed shifts, especially during acceleration or deceleration. Some owners report hesitation when shifting from park to drive or reverse.
  • Solution: Possible causes include low transmission fluid, worn valve body components, or software issues. A transmission fluid flush and filter change may resolve minor issues. Valve body replacement or transmission rebuild/replacement may be necessary for more severe cases.
  • Estimated Cost to Fix: $300 (fluid change) - $5,000+ (transmission rebuild/replacement) depending on the severity.
  • Recalls: None Found
• Mechatronic Unit Failure
  • Description/Symptoms: Erratic shifting, getting stuck in gear, or transmission malfunction warnings.
  • Solution: Replacement of the Mechatronic unit (the transmission’s control module).
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure
  • Description/Symptoms: The car sits low, especially overnight, and the air suspension compressor runs constantly or fails to activate. Error messages related to the suspension system may appear.
  • Solution: Replacing the air suspension compressor and potentially any leaking air struts.
  • Estimated Cost to Fix: $1,200 - $3,000+
  • Recalls: None Found
• Air Strut Leaks
  • Description/Symptoms: The vehicle sits low and suspension system error messages appear.
  • Solution: Replace the Air Struts
  • Estimated Cost to Fix: $1,000 - $2,500+ per strut
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: The battery drains quickly, especially when the car is not driven regularly. This can lead to starting problems.
  • Solution: Diagnosis to identify the source of the parasitic draw. Common culprits include the comfort access system, faulty control modules, or aftermarket accessories.
  • Estimated Cost to Fix: $200 - $1,000+ depending on the source of the drain.
  • Recalls: None Found
• iDrive System Issues
  • Description/Symptoms: The iDrive screen freezing, rebooting, or displaying errors. Navigation issues or unresponsive controls.
  • Solution: Software updates, replacement of the iDrive control module, or replacement of the screen.
  • Estimated Cost to Fix: $200 (software update) - $2,000+ (module replacement)
  • Recalls: None Found

Exterior

• Door Handle Issues (Comfort Access)
  • Description/Symptoms: The door handles with comfort access fail to respond, making it difficult to lock or unlock the car.
  • Solution: Replacing the faulty door handle(s).
  • Estimated Cost to Fix: $500 - $1,000+ per handle
  • Recalls: None Found

Interior

• Seat Motor Failures
  • Description/Symptoms: The power seats stop adjusting properly.
  • Solution: Replacing the faulty seat motor.
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found
• Sunroof Issues
  • Description/Symptoms: Sunroof malfunctions, sticking, or failing to open/close completely.
  • Solution: Inspection and repair or replacement of the sunroof motor or track components.
  • Estimated Cost to Fix: $300 - $1,500+ depending on the severity.
  • Recalls: None Found

Summary

The 2015 BMW 750Li xDrive, while offering a luxurious driving experience, is prone to several common issues. Engine-related problems, particularly oil and coolant leaks in the V8 engine, are a significant concern and can be costly to address. Transmission issues, especially rough shifting or Mechatronic unit failures, can also be expensive. Suspension problems, like air suspension compressor failures, are also common. Electrical gremlins, such as battery drain and iDrive malfunctions, can add to the ownership burden. Overall, the potential for costly repairs should be considered when purchasing a used 2015 BMW 750Li xDrive.