2017 BMW M6
Introduction:
The 2017 BMW M6 is a high-performance coupe powered by a 4.4-liter twin-turbocharged V8 engine that produces 560 horsepower and 500 lb-ft of torque. It comes standard with a 7-speed dual-clutch transmission and rear-wheel drive. Other features include adaptive suspension, a limited-slip differential, and a carbon fiber roof. The M6 has been praised for its powerful engine, responsive handling, and luxurious interior, but it has also been criticized for its high price and limited rear-seat space.
Engine
4.4-liter Twin-Turbo V8
- Blown Connecting Rod Bearings
- Description/Symptoms: The connecting rod bearings can fail, causing a catastrophic engine failure. Symptoms include knocking sounds from the engine, decreased power, and increased oil consumption.
- Solution: The engine must be disassembled and the connecting rod bearings replaced.
- Estimated Cost to Fix: $15,000+
- Recalls: None Found
- Carbon Buildup on Intake Valves
- Description/Symptoms: Carbon buildup on the intake valves can restrict airflow and reduce engine performance. Symptoms include reduced power, increased fuel consumption, and rough idling.
- Solution: The intake valves must be cleaned or replaced.
- Estimated Cost to Fix: $1,000 - $2,000
- Recalls: None Found
- Blown Connecting Rod Bearings
Transmission
7-Speed Dual-Clutch Transmission
- Clutches Overheating
- Description/Symptoms: The clutches can overheat during hard driving, causing the transmission to slip or shudder. Symptoms include difficulty shifting gears, loss of power, and a burning smell.
- Solution: The transmission fluid and clutch pack must be replaced.
- Estimated Cost to Fix: $4,000 - $6,000
- Recalls: None Found
- Clutches Overheating
Suspension
Adaptive Suspension
- Faulty Sensors
- Description/Symptoms: The suspension sensors can fail, causing the suspension to malfunction. Symptoms include a rough ride, uneven ride height, and difficulty handling.
- Solution: The faulty sensors must be replaced.
- Estimated Cost to Fix: $500 - $1,000
- Recalls: None Found
- Faulty Sensors
Electrical
- Battery Discharge
- Description/Symptoms: The battery can discharge prematurely, leaving the vehicle stranded. Symptoms include difficulty starting the engine, dim headlights, and a dead battery.
- Solution: The battery must be replaced.
- Estimated Cost to Fix: $200 - $500
- Recalls: None Found
Exterior
- Broken Carbon Fiber Roof
- Description/Symptoms: The carbon fiber roof can be damaged by hail or other objects. Symptoms include visible cracks or holes in the roof.
- Solution: The carbon fiber roof must be repaired or replaced.
- Estimated Cost to Fix: $5,000 - $10,000
- Recalls: None Found
Interior
- Faulty iDrive Infotainment System
- Description/Symptoms: The iDrive infotainment system can freeze or become unresponsive. Symptoms include a blank screen, difficulty using the controls, and loss of audio.
- Solution: The iDrive system must be updated or replaced.
- Estimated Cost to Fix: $1,000 - $2,000
- Recalls: None Found
Summary:
The 2017 BMW M6 is a high-performance coupe with a powerful engine, responsive handling, and luxurious interior. However, it has been plagued by a number of issues, including blown connecting rod bearings, carbon buildup on intake valves, overheating clutches, faulty suspension sensors, battery discharge, and a broken carbon fiber roof. These issues can be expensive to fix, ranging from $500 to over $15,000. Potential buyers should be aware of these issues before purchasing an M6.