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2007 BMW 750Li

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By Research the Car 5 min read

Here’s a breakdown of common issues and complaints associated with the 2007 BMW 750Li, categorized by major components.

The 2007 BMW 750Li is a luxury sedan known for its smooth ride, powerful engine, and advanced technology for its time. The 750Li is equipped with a 4.8L V8 engine producing 360 horsepower and 360 lb-ft of torque. While offering a comfortable and luxurious driving experience, the 2007 750Li is known for its high maintenance costs and potential for electrical and mechanical issues. Common complaints include issues with the complex electronic systems, suspension components, and oil leaks. Other engine options included the 760Li, which used a V12, and the 740Li, which used a smaller V8. All of the engine options for the 750Li were paired with a 6-speed automatic transmission.

Engine

N62B48 (4.8L V8)

  • Oil Leaks
    • Description/Symptoms: Oil leaks are a common issue. The valve cover gaskets, oil pan gasket, and the alternator bracket gasket are known to leak. Symptoms include visible oil leaks on the engine or garage floor, and the smell of burning oil.
    • Solution: Replace the leaking gasket.
    • Estimated Cost to Fix: $200 - $800+ depending on the location of the leak and the shop’s labor rates.
    • Recalls: None Found
  • Coolant Leaks
    • Description/Symptoms: Coolant leaks can occur from various locations, including the water pump, radiator hoses, expansion tank, and valley pan gasket. Symptoms include low coolant level, overheating, and visible coolant leaks.
    • Solution: Identify and replace the leaking component.
    • Estimated Cost to Fix: $100 - $1000+ depending on the location and severity of the leak.
    • Recalls: None Found
  • Valve Stem Seals
    • Description/Symptoms: Worn valve stem seals can cause excessive oil consumption and blue smoke from the exhaust, especially upon startup.
    • Solution: Replace the valve stem seals. This is a labor-intensive job.
    • Estimated Cost to Fix: $2,000 - $4,000+
    • Recalls: None Found
  • VANOS Issues
    • Description/Symptoms: VANOS (Variable Valve Timing) system malfunctions can lead to rough idling, reduced power, and diagnostic trouble codes.
    • Solution: Repair or replace the VANOS solenoids or units.
    • Estimated Cost to Fix: $500 - $2000+
    • Recalls: None Found

Transmission

ZF 6HP26 (6-Speed Automatic)

  • Slipping or Harsh Shifting
    • Description/Symptoms: Transmission slipping, harsh or delayed shifts, and erratic behavior can occur.
    • Solution: Fluid and filter change may help in some cases. In other cases, the transmission may require a valve body rebuild or replacement, or a complete transmission rebuild or replacement.
    • Estimated Cost to Fix: $300 (fluid change) - $4,000+ (rebuild or replacement)
    • Recalls: None Found
  • Mechatronic Sleeve Leak
    • Description/Symptoms: The mechatronic sleeve (electrical connector sleeve) can leak transmission fluid, causing shifting problems.
    • Solution: Replace the mechatronic sleeve and fluid.
    • Estimated Cost to Fix: $300 - $700+
    • Recalls: None Found

Suspension

  • Air Suspension Failure
    • Description/Symptoms: The air suspension system is prone to failure. Common issues include leaks in the air struts, a failing air compressor, or problems with the ride height sensors. Symptoms include the car sitting low, an error message on the dash, and a noisy or non-functional air compressor.
    • Solution: Replace the leaking air struts, replace the air compressor, or repair/replace the ride height sensors.
    • Estimated Cost to Fix: $500 - $2000+ per strut, $500-$1000+ for the compressor.
    • Recalls: None Found
  • Control Arm Bushings
    • Description/Symptoms: Worn control arm bushings can cause vibrations, clunking noises, and poor handling.
    • Solution: Replace the control arm bushings or the entire control arm.
    • Estimated Cost to Fix: $300 - $800+ per control arm.
    • Recalls: None Found

Electrical

  • Battery Drain
    • Description/Symptoms: The car’s complex electrical system can suffer from parasitic battery drain, leading to a dead battery.
    • Solution: Diagnose and repair the source of the battery drain. This can involve isolating circuits and components to identify the culprit.
    • Estimated Cost to Fix: $100 - $500+ depending on the complexity of the issue.
    • Recalls: None Found
  • iDrive Issues
    • Description/Symptoms: The iDrive system can experience glitches, freezing, or complete failure.
    • Solution: Software updates can sometimes resolve the issue. In other cases, the iDrive controller or display screen may need to be replaced.
    • Estimated Cost to Fix: $100 (software update) - $1500+ (replacement of components).
    • Recalls: None Found
  • Comfort Access Problems
    • Description/Symptoms: The comfort access system (keyless entry and start) can have issues with door handles not working or the car not recognizing the key.
    • Solution: Replace faulty door handle sensors or reprogram the key.
    • Estimated Cost to Fix: $200 - $800+ per door handle.
    • Recalls: None Found

Exterior

  • Door Lock Actuators
    • Description/Symptoms: The door lock actuators can fail, preventing the doors from locking or unlocking properly.
    • Solution: Replace the faulty door lock actuator.
    • Estimated Cost to Fix: $200 - $500+ per door.
    • Recalls: None Found

Interior

  • Sunroof Issues
    • Description/Symptoms: The sunroof mechanism can fail, causing the sunroof to get stuck or make excessive noise.
    • Solution: Repair or replace the sunroof mechanism.
    • Estimated Cost to Fix: $300 - $1000+
    • Recalls: None Found
  • Seat Motor Failure
    • Description/Symptoms: The seat motors can fail, preventing the seat from adjusting properly.
    • Solution: Replace the faulty seat motor.
    • Estimated Cost to Fix: $200 - $600+ per motor.
    • Recalls: None Found

Summary

The 2007 BMW 750Li, while offering a luxurious experience, is known for its potential for costly repairs. Issues related to the engine (oil leaks, valve stem seals, VANOS), transmission (slipping, mechatronic sleeve leaks), suspension (air suspension failure), and electrical systems (battery drain, iDrive malfunctions) are common. Repair costs can range from a few hundred dollars for minor issues to several thousand dollars for major repairs like engine or transmission work. Potential buyers should carefully inspect the car and consider a pre-purchase inspection by a qualified mechanic specializing in BMWs.

BMW, 750Li
BMW 750Li 2007
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