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2024 BMW 740i

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By Research the Car 4 min read

The 2024 BMW 740i represents the latest generation of BMW’s flagship sedan, blending luxury, technology, and performance. The 740i is equipped with a 3.0-liter turbocharged inline-6 engine, producing 375 horsepower and 398 lb-ft of torque. Other engine options include a 4.4-liter twin-turbo V8, and an all-electric powertrain in the i7 model. All engines are paired with an 8-speed automatic transmission. Owners often praise the 740i for its opulent interior, smooth ride, and cutting-edge technology. Some common dislikes include the complex iDrive system, the bold styling, and the high price tag.

Engine

3.0L Turbocharged Inline-6 (B58)

  • Rough Idle/Hesitation
    • Description/Symptoms: Some owners have reported instances of a rough idle, hesitation upon acceleration, or occasional stalling, particularly when the engine is cold. This can manifest as vibrations felt through the steering wheel or seats.
    • Solution: Diagnosis may involve checking the fuel injectors, spark plugs, and the engine management system for error codes. The issue can sometimes be resolved by cleaning or replacing the fuel injectors or spark plugs. A software update may also be needed to recalibrate the engine control unit (ECU).
    • Estimated Cost to Fix: $200 - $1000+
    • Recalls: None Found
  • Coolant Leaks
    • Description/Symptoms: Owners have reported coolant leaks coming from the plastic coolant pipes. Symptoms include low coolant levels, overheating, and visible coolant on the engine block.
    • Solution: Replace the plastic coolant pipes with upgraded aluminum coolant pipes.
    • Estimated Cost to Fix: $500 - $1200+
    • Recalls: None Found

Transmission

8-Speed Automatic (8HP)

  • Harsh Shifting/Hesitation
    • Description/Symptoms: Some owners have reported harsh or delayed shifts, particularly when shifting from lower to higher gears or downshifting during deceleration. There may also be hesitation when accelerating from a stop.
    • Solution: The dealer may be able to reprogram the TCU (Transmission Control Unit). If the problem persists, valve body replacement is another option.
    • Estimated Cost to Fix: $300 - $4000+
    • Recalls: None Found

Electrical

  • iDrive System Issues
    • Description/Symptoms: The iDrive system, which controls infotainment, navigation, and vehicle settings, may experience glitches, freezing, or complete failure. Some users have reported unresponsive touchscreens or difficulty connecting to wireless Apple CarPlay or Android Auto.
    • Solution: A software update from the dealership is often the first step. In more severe cases, the iDrive module itself may need replacement.
    • Estimated Cost to Fix: $0 (Software Update) - $2000+ (Module Replacement)
    • Recalls: None Found
  • Sensor Malfunctions (Parking Sensors, Driver Assist)
    • Description/Symptoms: Malfunctions of parking sensors, lane departure warning, blind-spot monitoring, or adaptive cruise control can occur. Symptoms may include false warnings, system inoperability, or error messages on the dashboard.
    • Solution: Diagnosis involves scanning the vehicle’s computer for error codes related to the specific sensor. Depending on the issue, recalibration, cleaning, or replacement of the faulty sensor may be necessary.
    • Estimated Cost to Fix: $200 - $800+ per sensor
    • Recalls: None Found

Interior

  • Seat Adjustment Malfunctions
    • Description/Symptoms: Owners have reported issues with the power seat adjustments, including difficulty moving the seat forward or backward, up or down, or adjusting the lumbar support. This could be caused by a faulty motor or switch.
    • Solution: Diagnosis involves checking the seat motors and switches for power and proper function. If a motor or switch is faulty, it will need to be replaced.
    • Estimated Cost to Fix: $300 - $1000+
    • Recalls: None Found
  • Sunroof/Moonroof Issues
    • Description/Symptoms: Some owners have experienced issues with the sunroof or moonroof, such as difficulty opening or closing, unusual noises during operation, or leaks.
    • Solution: Diagnosis involves checking the sunroof motor, tracks, and seals. If a motor is faulty, it will need to be replaced. If the tracks are damaged, they will need to be repaired or replaced. If the seals are worn, they will need to be replaced.
    • Estimated Cost to Fix: $200 - $1500+
    • Recalls: None Found

Suspension

  • Air Suspension Problems
    • Description/Symptoms: The 740i features air suspension, which can sometimes develop leaks or compressor failures. Symptoms include the car sitting unevenly, a warning light on the dashboard, or a noisy compressor.
    • Solution: The air springs (bags) and the compressor need to be inspected for leaks and functionality. Faulty components must be replaced.
    • Estimated Cost to Fix: $800 - $2500+ per corner
    • Recalls: None Found

Exterior

  • Adaptive Headlight Malfunctions
    • Description/Symptoms: Some owners have noted issues with the adaptive headlights, such as erratic movement, failure to adjust properly, or error messages.
    • Solution: Diagnosis involves checking the headlight motors, sensors, and control module. Faulty components need to be replaced or recalibrated.
    • Estimated Cost to Fix: $500 - $1500+
    • Recalls: None Found

Summary

The 2024 BMW 740i, while lauded for its luxury and performance, can be prone to certain issues. Engine and transmission problems, while not widespread, can be costly to repair. Electrical issues related to the complex iDrive system and sensor malfunctions are also common. Suspension issues with the air suspension may develop over time. Overall, while these issues may occur, many can be addressed with software updates or component replacements, but the cost of repair can vary significantly based on the specific problem.

BMW, 740i
BMW 740i 2024
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