2021 BMW M850i xDrive Gran Coupe

Introduction: The 2021 BMW M850i xDrive Gran Coupe is a high-performance luxury car that combines the sleekness of a coupe with the practicality of a four-door sedan. It features a powerful 4.4-liter twin-turbocharged V8 engine that generates an impressive 523 horsepower and 553 lb-ft of torque. Paired with an eight-speed automatic transmission, the M850i xDrive Gran Coupe can accelerate from 0 to 60 mph in just 3.9 seconds. Despite its performance capabilities, the M850i xDrive Gran Coupe offers a comfortable and luxurious interior with ample space for passengers and cargo. However, like any car, it has its fair share of issues.

Engine 4.4-Liter Twin-Turbocharged V8

• Oil Leak from Valve Cover Gasket:
  • Description/Symptoms: A leak develops from the valve cover gasket, causing oil to drip onto the engine components below.
  • Solution: Replace the valve cover gasket.
  • Estimated Cost to Fix: $500 - $800
  • Recalls: None Found
• Timing Chain Failure:
  • Description/Symptoms: The timing chain may stretch or break, leading to engine damage.
  • Solution: Replace the timing chain and関連components.
  • Estimated Cost to Fix: $2,500 - $4,000
  • Recalls: N20A and N26 engines

Transmission Eight-Speed Automatic

• Mechatronic Unit Failure:
  • Description/Symptoms: The mechatronic unit, an electronic control module within the transmission, malfunctions, causing shifting problems, delayed engagement, or even transmission failure.
  • Solution: Replace the mechatronic unit.
  • Estimated Cost to Fix: $2,000 - $3,000
  • Recalls: None Found

Suspension

• Air Suspension Compressor Failure:
  • Description/Symptoms: The air suspension compressor fails, leading to a loss of ride height and uneven suspension.
  • Solution: Replace the air suspension compressor.
  • Estimated Cost to Fix: $1,500 - $2,000
  • Recalls: None Found

Electrical

• Battery Drain:
  • Description/Symptoms: The battery discharges quickly, even when the car is not in use.
  • Solution: Diagnose and repair the electrical system, including checking for parasitic drain.
  • Estimated Cost to Fix: $500 - $1,500
  • Recalls: None Found

Exterior No issues found.

Interior

• Infotainment System Lag:
  • Description/Symptoms: The infotainment system experiences slow response times, freezes, or glitches.
  • Solution: Software update or replacement of the infotainment unit.
  • Estimated Cost to Fix: $500 - $1,500
  • Recalls: None Found

Summary: The 2021 BMW M850i xDrive Gran Coupe is a high-performance luxury car with a number of potential issues. While some issues like oil leaks and battery drain are relatively minor and inexpensive to fix, more severe problems such as timing chain failure and mechatronic unit failure can be costly and time-consuming to repair. Overall, the severity and cost of the issues vary depending on the specific component and the extent of the damage. It’s important for owners to be aware of these potential issues and to have their vehicles regularly inspected and maintained to prevent or address them promptly.