2017 BMW M6 Gran Coupe

Here’s a comprehensive breakdown of common issues and complaints for the 2017 BMW M6 Gran Coupe, organized by category.

The 2017 BMW M6 Gran Coupe is a high-performance four-door coupe. It is powered by a 4.4-liter TwinPower Turbo V8 engine that produces 560 horsepower and 500 lb-ft of torque. This engine is paired with a 7-speed dual-clutch transmission. One notable option is the Competition Package, boosting power to 600 hp and 516 lb-ft of torque. Drivers generally praise its exhilarating performance, luxurious interior, and sleek styling. Common dislikes revolve around its high cost of ownership, complex electronics, and firm ride, making it less suitable for daily commuting on rough roads.

Engine

4.4L TwinPower Turbo V8

• Oil Leaks
  • Description/Symptoms: Oil leaks can occur from various areas, including the valve cover gaskets, oil pan gasket, and turbocharger oil lines. Symptoms include visible oil drips under the car, the smell of burning oil, and low oil level warnings.
  • Solution: Replacing the affected gasket or line.
  • Estimated Cost to Fix: $200 - $1500+, depending on the location and severity of the leak.
  • Recalls: None Found
• VANOS (Variable Valve Timing) System Issues
  • Description/Symptoms: VANOS system problems can cause rough idling, loss of power, and engine stalling. Fault codes related to VANOS timing are often present.
  • Solution: Replacing or repairing the VANOS solenoids or the entire VANOS unit.
  • Estimated Cost to Fix: $500 - $2500+
  • Recalls: None Found
• Fuel Injector Failure
  • Description/Symptoms: Misfires, rough idle, poor fuel economy, and potentially a check engine light.
  • Solution: Replacement of faulty fuel injector(s).
  • Estimated Cost to Fix: $300 - $800+ per injector.
  • Recalls: None Found

Transmission

7-Speed Dual-Clutch (DCT)

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners report occasional jerky or hesitant shifts, especially at lower speeds.
  • Solution: Software update, or in more severe cases, clutch replacement.
  • Estimated Cost to Fix: $200 (Software) - $5000+ (Clutch replacement).
  • Recalls: None Found
• Mechatronic Unit Failure
  • Description/Symptoms: Transmission malfunctions, difficulty shifting gears, or complete loss of gear engagement. This unit controls the hydraulic operation of the transmission.
  • Solution: Replacement or repair of the Mechatronic unit.
  • Estimated Cost to Fix: $3000 - $6000+
  • Recalls: None Found

Suspension

• Adaptive Suspension Malfunctions
  • Description/Symptoms: Error messages related to the adaptive dampers (Electronic Damper Control - EDC), uneven ride height, or a noticeably harsh or bouncy ride.
  • Solution: Replacement of faulty dampers or sensors.
  • Estimated Cost to Fix: $800 - $2000+ per damper.
  • Recalls: None Found

Electrical

• iDrive System Issues
  • Description/Symptoms: Freezing, rebooting, or general unresponsiveness of the iDrive infotainment system.
  • Solution: Software updates, replacement of the iDrive module in severe cases.
  • Estimated Cost to Fix: $100 - $1000+
  • Recalls: None Found
• Sensor Failures (Parking Sensors, etc.)
  • Description/Symptoms: Malfunctioning parking sensors, tire pressure sensors, or other electronic sensors. Error messages are often displayed.
  • Solution: Replacement of the faulty sensor.
  • Estimated Cost to Fix: $100 - $500+ per sensor.
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: The battery drains quickly, especially if the car sits for a few days.
  • Solution: Testing and replacement of battery, diagnosis for parasitic drain from faulty modules.
  • Estimated Cost to Fix: $200-$500+ for battery replacement, diagnosis for parasitic drain can vary.
  • Recalls: None Found

Exterior

• Carbon Fiber Roof Delamination
  • Description/Symptoms: Clear coat delamination or cracking on the carbon fiber roof.
  • Solution: Repair or replacement of the roof panel.
  • Estimated Cost to Fix: $500 - $5000+
  • Recalls: None Found

Interior

• Seat Actuator Failure
  • Description/Symptoms: Power seats stop moving or adjust only partially.
  • Solution: Replacement of the faulty seat actuator.
  • Estimated Cost to Fix: $300 - $800+ per actuator.
  • Recalls: None Found

Summary

The 2017 BMW M6 Gran Coupe, while a performance marvel, is prone to some expensive issues. Engine oil leaks and VANOS problems can be costly, as can transmission issues with the DCT. Electrical gremlins, especially with the iDrive system, and suspension malfunctions are also common. The carbon fiber roof can develop cosmetic issues. Overall, potential owners should be aware of the high maintenance costs associated with this vehicle.