2012 BMW 750Li xDrive

Introduction

The 2012 BMW 750Li xDrive is a luxury sedan powered by a 4.4-liter twin-turbocharged V8 engine producing 445 horsepower and 480 lb-ft of torque. It is equipped with an 8-speed automatic transmission and all-wheel drive. The 750Li xDrive is known for its spacious interior, comfortable ride, and advanced technology features. However, it has also been subject to various issues reported by owners.

Engine

4.4L Twin-Turbocharged V8

• Intake Valve Deposits: Carbon buildup on intake valves can lead to reduced engine performance, misfiring, and increased emissions. Cleaning the valves using walnut blasting or a similar process is recommended.
• Turbocharger Failure: Faulty turbochargers can cause a loss of power, increased fuel consumption, and unusual noises. Replacement of the affected turbocharger is necessary.

Transmission

8-Speed Automatic

• Shifting Problems: Delayed or rough shifting, especially during gear changes, can be experienced. Reprogramming the transmission control module or replacing the transmission may be required.
• Transmission Fluid Leak: Leaks from the transmission seals or lines can cause fluid loss and potential damage to the transmission. Replacing the leaking components is necessary.

Suspension

• Air Suspension Compressor Failure: The air suspension compressor may fail, leading to uneven ride height and handling issues. Replacing the compressor is required.
• Control Arm Bushing Wear: Worn control arm bushings can result in excessive noise, vibration, and reduced handling stability. Replacing the affected bushings is necessary.

Electrical

• Battery Drain: Excessive battery draining can be caused by a variety of electrical components, such as the alternator, parasitic drain, or faulty modules. Diagnosis and repair of the affected component are necessary.
• Xenon Headlight Ballast Failure: Faulty headlamp ballasts can cause xenon headlights to flicker, dim, or fail completely. Replacing the affected ballasts is required.

Exterior

• Sunroof Drain Clogs: Clogged sunroof drains can cause water to leak into the cabin, damaging interior components. Cleaning or replacing the drains is necessary.
• Door Lock Actuator Failure: Malfunctioning door lock actuators can prevent doors from locking or unlocking properly. Replacing the defective actuators is necessary.

Interior

• iDrive System Malfunctions: The iDrive infotainment system may experience software glitches, freezing, or display issues. Updating the software or replacing the affected components may be required.
• Center Console Silver Trim Peeling: The silver trim on the center console may peel off, affecting the aesthetic appearance of the interior. Replacement of the affected trim is necessary.

Summary

While the 2012 BMW 750Li xDrive offers a luxurious and technologically advanced driving experience, it has been subject to a number of issues that can affect its reliability and cost of ownership. The severity of these issues can range from minor annoyances to more significant mechanical problems. The cost of repairs can vary depending on the specific issue and the extent of the damage. It is advisable for potential buyers to be aware of these issues and factor them into their decision-making process.