2016 BMW M4

The 2016 BMW M4 is a high-performance sports coupe/convertible that boasts a thrilling driving experience. It is powered by a 3.0-liter twin-turbocharged inline-six engine, producing 425 horsepower and 406 lb-ft of torque in its standard configuration. An optional Competition Package increased power to 444 hp. Transmission options included a 6-speed manual and a 7-speed dual-clutch automatic (DCT). Owners often praise the M4 for its sharp handling, powerful engine, and aggressive styling. Criticisms typically revolve around the firm ride, particularly with the Competition Package, and the sometimes artificial feel of the steering.

Engine

S55 3.0L Twin-Turbocharged Inline-Six

• Crank Hub Failure
  • Description/Symptoms: The S55 engine is known for potential crank hub failure, where the friction fit of the crank hub can slip, causing timing misalignment. Symptoms include a sudden loss of power, rough running, and potential engine damage if not addressed quickly.
  • Solution: Replacing the factory crank hub with a pinned or keyed crank hub is the most common preventative measure.
  • Estimated Cost to Fix: $2,500 - $4,000+
  • Recalls: None Found
• Oil Leaks
  • Description/Symptoms: Oil leaks can occur from various locations, including the valve cover gasket and the oil filter housing. Symptoms include visible oil leaks, a burning smell, and low oil levels.
  • Solution: Replacing the leaking gaskets or seals.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found

Transmission

6-Speed Manual Transmission

• Clutch Issues
  • Description/Symptoms: Some owners have reported clutch issues, including premature wear and difficulty engaging gears. Symptoms include clutch slippage, difficulty shifting, and a high engagement point.
  • Solution: Replacing the clutch assembly.
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found

7-Speed Dual-Clutch Transmission (DCT)

• Mechatronics Failure
  • Description/Symptoms: Some owners have reported issues with the DCT mechatronics unit, which controls the shifting functions. Symptoms can include harsh or delayed shifts, failure to engage gears, or error messages on the instrument cluster.
  • Solution: Replacement or repair of the mechatronics unit. Requires specialized tools and diagnostic equipment.
  • Estimated Cost to Fix: $3,000 - $5,000+
  • Recalls: None Found

Suspension

• Adaptive Suspension Malfunctions (If Equipped)
  • Description/Symptoms: Models equipped with adaptive suspension (Adaptive M Suspension) can experience malfunctions with the electronic dampers. This can result in a rough ride, uneven handling, and error messages.
  • Solution: Replacing the faulty damper(s).
  • Estimated Cost to Fix: $500 - $1,500+ per damper.
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Some owners have experienced excessive battery drain, especially if the car is left unused for extended periods. This can be due to various factors, including a faulty module not entering sleep mode, aftermarket accessories, or a failing battery.
  • Solution: Diagnosing the source of the drain and addressing the faulty component. Replacing the battery if necessary.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• iDrive System Issues
  • Description/Symptoms: The iDrive system can occasionally experience glitches, freezing, or failure to boot.
  • Solution: Software updates, resetting the system, or replacing the iDrive control unit.
  • Estimated Cost to Fix: $100 - $1,500+
  • Recalls: None Found

Exterior

• Cracked or Broken Carbon Fiber Trim
  • Description/Symptoms: The optional carbon fiber trim pieces (roof, mirrors, rear diffuser) can be susceptible to cracking or breaking due to impacts or environmental factors.
  • Solution: Replacement of the damaged carbon fiber part.
  • Estimated Cost to Fix: $500 - $3,000+
  • Recalls: None Found

Interior

• Rattling/Creaking Noises
  • Description/Symptoms: Some owners have reported various rattles and creaks emanating from the dashboard, door panels, or rear shelf.
  • Solution: Identifying the source of the noise and addressing it with foam padding, tightening fasteners, or replacing worn components.
  • Estimated Cost to Fix: $50 - $500+
  • Recalls: None Found

Summary

The 2016 BMW M4 offers exhilarating performance, but potential owners should be aware of some common issues. The crank hub failure on the S55 engine is a significant concern due to its potential for catastrophic engine damage. The DCT mechatronics unit is another potentially expensive repair. Other issues, such as oil leaks, electrical problems, and suspension malfunctions, are generally less severe but still require attention. Overall, the 2016 M4 can be a rewarding car to own, but proper maintenance and addressing potential issues promptly are essential to ensuring its long-term reliability.