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2017 BMW 740Le xDrive

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By Research the Car 5 min read

Here’s a breakdown of common issues and complaints for the 2017 BMW 740Le xDrive, formatted as requested. The 2017 BMW 740Le xDrive is a plug-in hybrid luxury sedan that combines performance with efficiency. It features a 2.0-liter turbocharged four-cylinder engine paired with an electric motor, producing a combined output of 322 horsepower and 369 lb-ft of torque. Other engine options in the 7 Series lineup include the 740i’s 3.0-liter inline-six, the 750i’s 4.4-liter V8, and the M760i’s 6.6-liter V12. All models typically come equipped with an 8-speed automatic transmission. Owners often praise the 740Le xDrive for its smooth ride, luxurious interior, and impressive fuel economy for its class, while some common complaints revolve around the complexity of the hybrid system and potential electrical gremlins.

Electric Motor

Electric Motor (Hybrid System)

  • High Voltage Battery Degradation
    • Description/Symptoms: Reduced electric-only driving range, decreased overall fuel economy, and error messages related to battery performance. The battery might not hold a charge as long as it initially did.
    • Solution: Replacement of the high-voltage battery pack is the typical solution. In some cases, individual battery modules can be replaced if diagnostics indicate a localized issue.
    • Estimated Cost to Fix: $10,000 - $15,000+
    • Recalls: None Found
  • Hybrid System Malfunction Warning
    • Description/Symptoms: The vehicle displays a “Hybrid System Malfunction” warning light, potentially accompanied by reduced power, limited driving modes, or complete immobilization. Error codes relating to the electric motor, power electronics, or battery management system are often stored.
    • Solution: Diagnosis with BMW-specific diagnostic tools is crucial to pinpoint the root cause. Repairs might involve replacing faulty sensors, wiring harnesses, power inverters, or even the electric motor itself. Software updates can sometimes resolve the issue.
    • Estimated Cost to Fix: $500 - $5,000+, depending on the component requiring replacement.
    • Recalls: None Found

Engine

2.0L Turbocharged Inline-4 Cylinder

  • Coolant Leaks
    • Description/Symptoms: Loss of coolant, requiring frequent top-ups. Visible coolant leaks near the engine, particularly around the water pump, thermostat housing, or coolant hoses. Overheating can occur if the leak is severe.
    • Solution: Replacing the faulty water pump, thermostat housing, or coolant hoses. Pressure testing the cooling system can help identify the source of the leak.
    • Estimated Cost to Fix: $300 - $1,000+, depending on the part needing replacement and labor costs.
    • Recalls: None Found
  • Oil Leaks (Valve Cover Gasket)
    • Description/Symptoms: Oil leaks around the valve cover, leading to a burning oil smell. Visible oil residue on the engine block.
    • Solution: Replacing the valve cover gasket.
    • Estimated Cost to Fix: $200 - $500
    • Recalls: None Found

Transmission

8-Speed Automatic (All Engine Options)

  • Rough Shifting/Hesitation
    • Description/Symptoms: Harsh or jerky gear changes, particularly during acceleration or deceleration. Hesitation when shifting between gears.
    • Solution: Performing a transmission fluid flush and filter replacement might alleviate the issue if it’s due to contaminated fluid. In more severe cases, valve body replacement or a complete transmission rebuild may be necessary.
    • Estimated Cost to Fix: $300 (fluid flush) - $5,000+ (transmission rebuild)
    • Recalls: None Found
  • Transmission Slipping
    • Description/Symptoms: The engine revs higher than normal without a corresponding increase in speed. The transmission may struggle to engage gears, or slip out of gear entirely.
    • Solution: Inspect the transmission fluid for contamination or low levels. If the fluid is in good condition, internal transmission damage is likely, requiring a rebuild or replacement.
    • Estimated Cost to Fix: $3,000 - $8,000+
    • Recalls: None Found

Suspension

  • Air Suspension Issues
    • Description/Symptoms: Vehicle leaning to one side, compressor failing to inflate, suspension light illuminated, ride is bumpy.
    • Solution: Replacement of failed air struts, air compressor, or related air lines.
    • Estimated Cost to Fix: $1,000 - $4,000+ depending on what suspension part failed and needs to be replaced.
    • Recalls: None Found

Electrical

  • Infotainment System Freezing/Crashing
    • Description/Symptoms: The iDrive system freezes, becomes unresponsive, or crashes intermittently. Navigation, audio, and other functions might be affected.
    • Solution: Attempting a system reset or software update is the first step. If the issue persists, the iDrive control unit may need to be replaced.
    • Estimated Cost to Fix: $200 (software update) - $1,500+ (control unit replacement)
    • Recalls: None Found
  • Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring)
    • Description/Symptoms: False alerts or failure of parking sensors, blind spot monitoring system, or other driver-assist features. Error messages appear on the dashboard.
    • Solution: Diagnosing and replacing the faulty sensor(s). Recalibrating the system after sensor replacement may be necessary.
    • Estimated Cost to Fix: $200 - $800+ per sensor, plus labor and calibration costs.
    • Recalls: None Found

Exterior

  • Tail Light Failure
    • Description/Symptoms: Sections of the LED tail light assembly fail, leading to reduced visibility and potential safety concerns.
    • Solution: Replacement of the entire tail light assembly.
    • Estimated Cost to Fix: $500 - $1,000+ per tail light assembly.
    • Recalls: None Found

Interior

  • Seat Adjustment Motor Failure
    • Description/Symptoms: The seat becomes stuck in one position, or only moves in certain directions. The seat adjustment motor is making unusual noises.
    • Solution: Replacing the faulty seat adjustment motor.
    • Estimated Cost to Fix: $300 - $800+ per motor.
    • Recalls: None Found
  • Sunroof Issues
    • Description/Symptoms: Sunroof gets stuck, fails to close or open completely, or makes grinding noises during operation.
    • Solution: Inspecting and lubricating the sunroof tracks and mechanism. Replacing damaged components, such as the sunroof motor or regulator.
    • Estimated Cost to Fix: $200 (lubrication) - $1,000+ (motor or regulator replacement)
    • Recalls: None Found

Summary

The 2017 BMW 740Le xDrive, while offering a luxurious and efficient driving experience, can be prone to certain issues, particularly related to its hybrid system, electrical components, and suspension. High-voltage battery degradation represents a potentially significant expense, while issues with the infotainment system and sensor malfunctions can be frustrating. Transmission problems, though less frequent, can also be costly to address. Potential buyers should be aware of these potential issues and carefully inspect the vehicle’s service history and condition before making a purchase. Regular maintenance and proactive troubleshooting can help minimize the risk of major repairs.

BMW, 740Le xDrive
BMW 740Le xDrive 2017
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