2017 BMW 640i xDrive Gran Coupe

The 2017 BMW 640i xDrive Gran Coupe is a stylish and luxurious four-door coupe, known for its sleek design and comfortable ride. The 640i xDrive Gran Coupe is powered by a 3.0-liter turbocharged inline-six engine producing 315 horsepower and 330 lb-ft of torque. It is only offered with an 8-speed automatic transmission. Some owners praise the car for its elegant styling, refined interior, and smooth power delivery. Common complaints include higher-than-average maintenance costs, some electronic quirks, and a somewhat cramped rear seat.

Engine

3.0L Turbocharged Inline-Six (N55)

• Oil Filter Housing Gasket Leak
  • Description/Symptoms: Oil leaking from the oil filter housing, visible oil drips, burning oil smell. This is a common issue on BMW engines with the N55 engine.
  • Solution: Replacement of the oil filter housing gasket.
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Coolant level dropping, overheating, visible coolant leaks around the engine, often near the water pump or coolant hoses.
  • Solution: Identify and replace the leaking component (water pump, hoses, expansion tank, etc.).
  • Estimated Cost to Fix: $150 - $1000+ (depending on the component)
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP)

• Rough Shifting
  • Description/Symptoms: Harsh or jerky gear changes, especially during acceleration or deceleration. The transmission may also hesitate or slip.
  • Solution: In some cases, a software update can resolve the issue. More severe cases may require valve body repair or replacement, or a full transmission replacement.
  • Estimated Cost to Fix: $200 - $5000+
  • Recalls: None Found

Suspension

• Air Suspension Issues (If Equipped)
  • Description/Symptoms: The rear of the car sits lower than the front, the car leans to one side, or the air compressor runs constantly. Error messages related to the air suspension may appear.
  • Solution: Diagnose and replace the faulty component (air struts, air compressor, ride height sensors, etc.).
  • Estimated Cost to Fix: $500 - $2000+ per component
  • Recalls: None Found

Electrical

• iDrive System Malfunctions
  • Description/Symptoms: The iDrive screen freezes, reboots unexpectedly, or displays error messages. Functions may be slow or unresponsive.
  • Solution: Attempt a system reset. A software update from the dealership may be required. In rare cases, the iDrive control unit may need replacement.
  • Estimated Cost to Fix: $0 (reset) - $150+ (software update) - $800+ (control unit replacement)
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: The battery frequently dies, especially after the car has been sitting for a short period.
  • Solution: Have the battery tested and replaced if necessary. Check for parasitic draws from aftermarket accessories or faulty modules.
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Exterior

• Door Handle Issues (Comfort Access)
  • Description/Symptoms: The comfort access system fails to unlock or lock the doors when touching the handle.
  • Solution: Replacement of the faulty door handle sensor or the entire handle assembly.
  • Estimated Cost to Fix: $300 - $800+ per handle
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: The sunroof motor fails or the sunroof gets stuck.
  • Solution: Lubricate the sunroof tracks or replace the faulty components.
  • Estimated Cost to Fix: $100 - $1000+
  • Recalls: None Found

Summary

The 2017 BMW 640i xDrive Gran Coupe is a desirable car but can present some issues. Oil leaks and coolant leaks are common, and can cause more extensive issues if not handled in a timely manner. The ZF 8HP is generally reliable, however it is not without issues of its own. The cost of repairing these cars can be high, so it is important to do your due diligence when considering buying this vehicle.