2007 BMW 750Li

Introduction to the 2007 BMW 750Li

The 2007 BMW 750Li is a luxurious full-size sedan renowned for its opulent interior, powerful engine, and advanced features. It features a 4.8-liter V8 engine producing 360 horsepower and 360 lb-ft of torque, paired with a 6-speed automatic transmission. Other available engine and transmission options include:

• 6.0-liter V12 engine with 445 horsepower and 442 lb-ft of torque paired with a 6-speed automatic transmission
• 4.4-liter V8 diesel engine with 300 horsepower and 523 lb-ft of torque paired with a 6-speed automatic transmission

Owners appreciate the 750Li’s comfortable ride, spacious cabin, and impressive performance. However, it has also been criticized for its high maintenance costs, complex electronics, and limited fuel economy.

Engine

4.8-liter V8

• Oil Filter Housing Gasket Leak:
  • Description/Symptoms: Leaking oil from the oil filter housing, visible on the engine and undercarriage.
  • Solution: Replace oil filter housing gasket.
  • Estimated Cost to Fix: $200 - $500
• Valvetronic System Failure:
  • Description/Symptoms: Engine misfires, rough idle, reduced power.
  • Solution: Replace valvetronic motor or eccentric shaft sensor.
  • Estimated Cost to Fix: $800 - $1,500+

6.0-liter V12

• Timing Chain Guide Failure:
  • Description/Symptoms: Noisy engine, timing chain rattle.
  • Solution: Replace timing chain and guides.
  • Estimated Cost to Fix: $5,000 - $10,000+

4.4-liter V8 Diesel

• Fuel Injector Failure:
  • Description/Symptoms: Hard starting, rough idle, reduced power.
  • Solution: Replace fuel injector(s).
  • Estimated Cost to Fix: $600 - $1,200+

Transmission

6-speed Automatic

• Transmission Slippage:
  • Description/Symptoms: Vehicle does not accelerate smoothly, transmission hesitates or jerks.
  • Solution: Replace transmission solenoid pack or valve body.
  • Estimated Cost to Fix: $1,500 - $3,000+
• Torque Converter Failure:
  • Description/Symptoms: Vehicle does not move or move sluggishly, transmission shuddering.
  • Solution: Replace torque converter.
  • Estimated Cost to Fix: $2,000 - $4,000+

Suspension

• Front Air Suspension Strut Failure:
  • Description/Symptoms: Vehicle leaning to one side, reduced ride height, rough ride.
  • Solution: Replace air suspension strut(s).
  • Estimated Cost to Fix: $800 - $1,500 per strut

Electrical

• Battery Discharge:
  • Description/Symptoms: Vehicle battery drains overnight or after short periods of inactivity.
  • Solution: Replace battery or repair/replace parasitic drain source (e.g., faulty module or wiring).
  • Estimated Cost to Fix: $200 - $600+
• iDrive System Malfunction:
  • Description/Symptoms: Navigation, audio, and other iDrive functions do not work or behave erratically.
  • Solution: Update software or replace iDrive control unit.
  • Estimated Cost to Fix: $500 - $1,500+

Exterior

• Headlight Condensation:
  • Description/Symptoms: Moisture accumulation inside the headlight assembly.
  • Solution: Replace headlight assembly or reseal existing assembly.
  • Estimated Cost to Fix: $500 - $1,000 per headlight

Interior

• Climate Control Panel Failure:
  • Description/Symptoms: Climate control functions do not work or behave erratically.
  • Solution: Replace climate control panel or repair wiring.
  • Estimated Cost to Fix: $500 - $1,000+
• Sunroof Motor Failure:
  • Description/Symptoms: Sunroof does not open or close properly, makes grinding noises.
  • Solution: Replace sunroof motor or repair wiring.
  • Estimated Cost to Fix: $500 - $1,200+

Summary

The 2007 BMW 750Li offers impressive performance and comfort but has a history of potential issues. Engine concerns are relatively common, particularly oil leaks and valvetrain problems. Transmission issues can be costly to repair, and the electrical system may experience battery discharge or iDrive malfunctions. Suspension and exterior issues are less frequent but can still affect ride quality and aesthetics. Interior problems include climate control and sunroof motor failures. Overall, the 750Li is a powerful and luxurious vehicle but requires careful maintenance and can incur significant repair costs, especially for engine and transmission issues.