2021 BMW M850i xDrive

Introduction:

The 2021 BMW M850i xDrive is a high-performance luxury coupe powered by a 4.4L twin-turbocharged V8 engine producing 523 horsepower and 553 lb-ft of torque. It is paired exclusively with an 8-speed Steptronic Sport automatic transmission and features an all-wheel-drive system. The M850i is known for its impressive handling, powerful engine, and luxurious interior. However, it is not without its issues.

Engine

4.4L Twin-Turbocharged V8

• Premature Timing Chain Failure:
  • Description/Symptoms: Rattling or ticking noise from the engine, lack of power, check engine light
  • Solution: Replace timing chain and guides
  • Estimated Cost to Fix: $1,500 - $2,500+
  • Recalls: None Found
• Oil Leaks:
  • Description/Symptoms: Oil pooling under the vehicle, low oil levels
  • Solution: Replace leaking gaskets or seals
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found

Transmission

8-Speed Steptronic Sport Automatic

• Shifting Problems:
  • Description/Symptoms: Difficulty shifting gears, rough shifts, delayed shifts
  • Solution: Update transmission software, replace mechatronic unit
  • Estimated Cost to Fix: $500 - $2,000+
  • Recalls: NHTSA ID Number: 22V020

Suspension

• Adaptive Suspension Malfunction:
  • Description/Symptoms: Uneven ride height, excessive body roll, warning lights on dashboard
  • Solution: Replace faulty sensors, actuators, or control module
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Electrical

• Battery Discharge:
  • Description/Symptoms: Battery drains quickly, difficulty starting the vehicle
  • Solution: Replace faulty battery, check for parasitic drains
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Infotainment System Issues:
  • Description/Symptoms: Touchscreen not responding, glitches, freezes
  • Solution: Update software, replace infotainment module
  • Estimated Cost to Fix: $500 - $1,500+
  • Recalls: None Found

Exterior

• Moonroof Drain Plugs Clogging:
  • Description/Symptoms: Water leaks into the vehicle, headliner gets soaked
  • Solution: Clean or replace drain plugs
  • Estimated Cost to Fix: $50 - $200
  • Recalls: None Found

Interior

• Steering Wheel Vibration:
  • Description/Symptoms: Vibration felt through the steering wheel, especially at higher speeds
  • Solution: Align wheels, balance tires, replace faulty suspension components
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found
• Door Lock Malfunction:
  • Description/Symptoms: Door locks don’t work properly, unlocking the vehicle may not work
  • Solution: Replace door lock actuators or modules
  • Estimated Cost to Fix: $300 - $800+
  • Recalls: None Found

Summary

The 2021 BMW M850i xDrive has a number of reported issues, but most of them are relatively minor and can be fixed at a reasonable cost. The most serious issue is the premature timing chain failure, which can lead to catastrophic engine damage if not addressed promptly. Overall, the M850i is a reliable and enjoyable vehicle, but it is important to be aware of its potential problems before purchasing.