2017 BMW 640i Gran Coupe

The 2017 BMW 640i Gran Coupe is a stylish and luxurious four-door coupe known for its sleek design and comfortable ride. The 640i Gran Coupe is powered by a 3.0-liter turbocharged inline-6 engine producing 315 horsepower and 330 lb-ft of torque. Other engine options available for the 6 Series Gran Coupe in 2017 included a more powerful turbocharged V8 in the 650i, and a diesel engine in some markets. All models typically came with an 8-speed automatic transmission. Owners often praise the car’s elegant styling, refined interior, and smooth performance, but common complaints include the high cost of maintenance and repairs, as well as potential electrical issues.

Engine

3.0L Turbocharged Inline-6 (N55/B58)

• Oil Leaks
  • Description/Symptoms: Oil leaks are relatively common as the car ages, often originating from the valve cover gasket or oil filter housing gasket. Symptoms include visible oil leaks, the smell of burning oil, and low oil levels.
  • Solution: Replace the faulty gasket(s).
  • Estimated Cost to Fix: $300 - $800+ depending on location and specific part.
• Coolant Leaks
  • Description/Symptoms: Coolant leaks may occur from the water pump, thermostat housing, or radiator hoses. Symptoms include low coolant levels, overheating, and visible coolant leaks.
  • Solution: Replace the leaking component(s).
  • Estimated Cost to Fix: $400 - $1200+ depending on location and specific part.
• VANOS Solenoid Issues
  • Description/Symptoms: The VANOS (Variable Camshaft Timing) system can experience problems with its solenoids. Symptoms include rough idling, reduced engine performance, and potential check engine lights.
  • Solution: Replace the faulty VANOS solenoid(s).
  • Estimated Cost to Fix: $200 - $600+ depending on location and specific part.

Transmission

8-Speed Automatic (ZF 8HP)

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners report experiencing rough shifting or hesitation, particularly when shifting between lower gears. This can be more pronounced at lower speeds or when the transmission is cold.
  • Solution: A transmission fluid change may help in some cases. In more severe cases, valve body issues may necessitate replacement or repair.
  • Estimated Cost to Fix: $300 (fluid change) - $2000+ (valve body repair/replacement).
• Mechatronic Sleeve Leaks
  • Description/Symptoms: The mechatronic sleeve, which seals the electrical connector to the transmission, can leak over time. Symptoms include visible oil leaks from the transmission and potentially shifting problems.
  • Solution: Replace the mechatronic sleeve and associated seals.
  • Estimated Cost to Fix: $300 - $800+ depending on location and specific part.

Suspension

• Adaptive Suspension (if equipped) - Damper Issues
  • Description/Symptoms: If the vehicle is equipped with the adaptive suspension, the dampers (shocks/struts) can fail over time, leading to a bouncy or unstable ride. Error messages related to the suspension system may also appear.
  • Solution: Replace the failed dampers.
  • Estimated Cost to Fix: $800 - $2000+ per damper, depending on location and specific part.

Electrical

• iDrive System Malfunctions
  • Description/Symptoms: The iDrive system can experience software glitches, screen freezes, or complete system failures. This can affect navigation, audio, and other vehicle functions.
  • Solution: Software updates may resolve some issues. More severe cases may require replacement of the iDrive module.
  • Estimated Cost to Fix: $100 (software update) - $1500+ (module replacement).
• Battery Drain Issues
  • Description/Symptoms: Some owners report experiencing excessive battery drain, especially if the car is not driven frequently. This can lead to difficulty starting the vehicle.
  • Solution: Check for parasitic drains, faulty modules, or a failing battery.
  • Estimated Cost to Fix: $100 (diagnosis) - $500+ (battery replacement/module repair).

Exterior

• Door Handle LED Failure
  • Description/Symptoms: The LED lights in the door handles can sometimes fail, requiring replacement of the handle assembly.
  • Solution: Replace the door handle assembly.
  • Estimated Cost to Fix: $300-$700+ per door handle.

Interior

• Sunroof Issues
  • Description/Symptoms: The sunroof mechanism can sometimes malfunction, causing it to jam or become difficult to open/close.
  • Solution: Repair or replace the sunroof mechanism.
  • Estimated Cost to Fix: $500 - $1500+.

Recalls:

• 6-Series Gran Coupe (F06) : 17V-686: Airbag
• 6-Series Gran Coupe (F06): 19V-688: Brake System
• 6-Series Gran Coupe (F06): 17V-423: Engine Cooling

Summary:

The 2017 BMW 640i Gran Coupe presents a mixed bag of potential issues. Engine oil and coolant leaks are relatively common and can be moderately expensive to address. Transmission issues, particularly with rough shifting, may require more extensive repairs. Electrical problems with the iDrive system and battery drain are also possibilities. Adaptive suspension components are prone to failure. Overall, while the 640i Gran Coupe offers a luxurious driving experience, potential owners should be prepared for the higher costs associated with maintaining and repairing a German luxury vehicle. The severity of the potential issues varies, but addressing them can range from a few hundred to several thousand dollars, depending on the specific problem and repair needed.