2013 BMW 750i

The 2013 BMW 750i is a luxury sedan known for its powerful engine, refined interior, and advanced technology features. A common engine option is the 4.4L Twin Turbo V8 producing 445 horsepower and 480 lb-ft of torque. Some owners appreciate the car’s smooth ride, luxurious amenities, and strong performance. However, potential drawbacks can include high maintenance costs, complex electronics prone to failure, and depreciation. Other engine options available include the 740i and 760i, and the transmission options were an 8-speed automatic transmission.

Engine

4.4L Twin Turbo V8 (N63TU)

• Oil Leaks (Valve Stem Seals)
  • Description/Symptoms: Excessive oil consumption, blue smoke from the exhaust, especially on startup. Oil leaks can also be visually detected around the valve covers.
  • Solution: Replacement of the valve stem seals.
  • Estimated Cost to Fix: $4,000 - $8,000+
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Coolant level decreasing rapidly, overheating, visible coolant leaks near hoses, water pump, or expansion tank.
  • Solution: Replace leaking hoses, water pump, thermostat, or expansion tank.
  • Estimated Cost to Fix: $500 - $2,000+ depending on the component.
  • Recalls: None Found
• Fuel Injector Issues
  • Description/Symptoms: Rough idle, misfires, fuel smell, poor fuel economy. Could also trigger a check engine light.
  • Solution: Replace faulty fuel injectors.
  • Estimated Cost to Fix: $1,200 - $2,000+
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP)

• Valve Body Issues
  • Description/Symptoms: Harsh or delayed shifting, slipping between gears, clunking noises during gear changes.
  • Solution: Replacement of the valve body or individual solenoids within the valve body. Fluid flush and filter change.
  • Estimated Cost to Fix: $800 - $3,000+ depending on the extent of the damage.
  • Recalls: None Found
• Mechatronic Unit Failure
  • Description/Symptoms: Transmission malfunction warnings, inability to shift gears, limp mode.
  • Solution: Replacement of the Mechatronic unit.
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure
  • Description/Symptoms: Car sagging on one or more corners, “Ride Height Control Inactive” warning on the dashboard, loud compressor noise.
  • Solution: Replacement of the air suspension compressor.
  • Estimated Cost to Fix: $800 - $1,500+
  • Recalls: None Found
• Air Strut Leaks
  • Description/Symptoms: Similar to compressor failure, but potentially isolated to a single corner of the vehicle. Hissing sound from the affected strut.
  • Solution: Replacement of the leaking air strut(s).
  • Estimated Cost to Fix: $1,000 - $2,000+ per strut.
  • Recalls: None Found

Electrical

• iDrive System Malfunctions
  • Description/Symptoms: Freezing, rebooting, or complete failure of the iDrive infotainment system.
  • Solution: Software update, replacement of the iDrive module.
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car battery draining overnight, difficulty starting the car.
  • Solution: Identify the parasitic drain (often caused by a faulty module or sensor) and repair/replace the affected component.
  • Estimated Cost to Fix: $200 - $1,000+ depending on the cause.
  • Recalls: None Found
• Door Lock Actuator Failure
  • Description/Symptoms: Doors not locking or unlocking properly, malfunctioning central locking system.
  • Solution: Replacement of the faulty door lock actuator(s).
  • Estimated Cost to Fix: $300 - $600+ per actuator.
  • Recalls: None Found

Exterior

• Adaptive Headlight Malfunctions
  • Description/Symptoms: Headlights not leveling properly, error messages related to adaptive headlight system.
  • Solution: Repair or replacement of the headlight leveling motors or control module.
  • Estimated Cost to Fix: $500 - $1,500+ per headlight.
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, getting stuck, excessive noise.
  • Solution: Repair or replacement of sunroof motor, tracks, or cables.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Summary

The 2013 BMW 750i, while a luxurious and powerful vehicle, can suffer from a range of issues. The most concerning are engine oil leaks, particularly from the valve stem seals, and transmission problems related to the valve body and Mechatronic unit. Suspension issues with the air suspension system are also common. Electrical gremlins, especially with the iDrive system, can be frustrating. Interior issues such as the sunroof getting stuck can occur. Overall, the potential costs associated with repairing these issues can be significant, making it crucial to have a pre-purchase inspection performed by a qualified mechanic.