2008 BMW 760Li

Introduction

The 2008 BMW 760Li is a luxury sedan powered by a twin-turbocharged 6.0-liter V12 engine producing 535 horsepower and 550 lb-ft of torque. It comes standard with a 6-speed automatic transmission. Other engine and transmission options include a 4.4-liter twin-turbocharged V8 with 400 horsepower and 450 lb-ft of torque, paired with a 6-speed automatic transmission, and a 6.0-liter V12 engine with 445 horsepower and 480 lb-ft of torque, paired with an 8-speed automatic transmission. The 760Li is known for its spacious and luxurious interior, powerful performance, and advanced technology features. However, like any vehicle, it has experienced its fair share of issues over the years.

Engine

6.0-liter Twin-Turbocharged V12

• Intake Valve Carbon Buildup
  • Description/Symptoms: Over time, carbon deposits can accumulate on the intake valves, reducing engine power and fuel economy. The symptoms include hesitation and rough idling.
  • Solution: Cleaning or replacing the intake valves is necessary to restore optimal engine performance.
  • Estimated Cost to Fix: $800 - $1,200+
  • Recalls: None Found
• Turbocharger Wastegate Failure
  • Description/Symptoms: Failure of the turbocharger wastegate can cause over-boosting, leading to decreased engine performance and potential damage. Symptoms include excessive exhaust smoke and check engine light illumination.
  • Solution: Replacing the faulty turbocharger wastegate is necessary to resolve the issue.
  • Estimated Cost to Fix: $1,500 - $2,000+
  • Recalls: None Found
• Coolant Leak from Expansion Tank
  • Description/Symptoms: A cracked or damaged expansion tank can result in coolant leaks, causing overheating and potential engine damage. Symptoms include low coolant levels and a warning light on the dashboard.
  • Solution: Replacing the expansion tank is necessary to stop the leak and prevent further issues.
  • Estimated Cost to Fix: $500 - $800
  • Recalls: None Found

4.4-liter Twin-Turbocharged V8

• No Issues Found

6.0-liter V12

• No Issues Found

Transmission

6-speed Automatic

• Mechatronic Unit Failure
  • Description/Symptoms: Failure of the mechatronic unit, which controls transmission operations, can cause shifting issues, rough acceleration, and check engine light illumination.
  • Solution: Replacing or repairing the mechatronic unit is necessary to resolve the issue.
  • Estimated Cost to Fix: $1,800 - $2,500
  • Recalls: None Found

8-speed Automatic

• No Issues Found

Suspension

• Air Suspension Compressor Failure
  • Description/Symptoms: Failure of the air suspension compressor can lead to suspension issues, uneven ride height, and potential damage to other components. Symptoms include a rough ride and warning lights on the dashboard.
  • Solution: Replacing the air suspension compressor is necessary to restore proper suspension function.
  • Estimated Cost to Fix: $1,200 - $1,800
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Worn control arm bushings can cause excessive vibration and noise, as well as deteriorated handling and suspension alignment. Symptoms include a clunking or rattling sound when driving over uneven surfaces.
  • Solution: Replacing the worn control arm bushings is necessary to restore suspension stability.
  • Estimated Cost to Fix: $600 - $900+
  • Recalls: None Found

Electrical

• Battery Discharge Issue
  • Description/Symptoms: Excessive battery discharge can occur due to parasitic drain or faulty components, leading to difficulty starting the vehicle. Symptoms include slow cranking and intermittent electrical issues.
  • Solution: Diagnosing and repairing the underlying cause of the battery discharge is necessary to prevent further problems.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found
• Electrical Harness Issues
  • Description/Symptoms: Faulty or damaged electrical harnesses can cause various electrical problems, including module malfunctions, power loss, and warning light illumination. Symptoms can vary depending on the affected components.
  • Solution: Diagnosing and replacing the faulty electrical harness is necessary to resolve the issue.
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Navigation System Display Malfunction
  • Description/Symptoms: Failure of the navigation system display can result in loss of navigation functionality and potential distraction while driving. Symptoms include a blank or unresponsive screen.
  • Solution: Replacing or repairing the faulty navigation system display is necessary to restore its functionality.
  • Estimated Cost to Fix: $1,000 - $1,500
  • Recalls: None Found
• Climate Control Malfunction
  • Description/Symptoms: Malfunctioning climate control components, such as sensors or actuators, can cause improper heating or cooling, leading to discomfort and inconvenience. Symptoms include inadequate temperature regulation or excessive noise.
  • Solution: Diagnosing and replacing the faulty climate control components is necessary to restore optimal temperature and airflow.
  • Estimated Cost to Fix: $500 - $1,000+
  • Recalls: None Found

Summary

While the 2008 BMW 760Li is a luxurious and powerful sedan, it is not without its issues. Some of the more common and potentially costly problems include intake valve carbon buildup, turbocharger wastegate failure, mechatronic unit failure, air suspension compressor failure, and electrical system issues. The severity and cost of these repairs can vary depending on the affected components and the extent of the damage. Overall, owners should be prepared for potential maintenance and repair expenses if they choose to purchase or lease this vehicle.