2022 BMW M340i

The 2022 BMW M340i is a popular luxury sports sedan known for its blend of performance and practicality. It’s powered by a potent 3.0-liter turbocharged inline-six engine, producing 382 horsepower and 369 lb-ft of torque. While this is the primary engine option for the M340i, it is also available with xDrive, BMW’s all-wheel-drive system. The sole transmission option is an 8-speed automatic. Owners appreciate the M340i for its quick acceleration, comfortable ride, and well-appointed interior. However, some common criticisms include the lack of driver engagement compared to older BMWs, and occasional reliability concerns.

Engine

B58 3.0L Turbocharged Inline-Six

• Oil Filter Housing Leak
  • Description/Symptoms: Oil leaking from the oil filter housing, visible under the car or on the engine. May cause a burning smell.
  • Solution: Replace the oil filter housing gasket. In severe cases, the entire oil filter housing may need replacement.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found
• Coolant Leak
  • Description/Symptoms: Coolant leaking, leading to low coolant levels.
  • Solution: Replace the affected hoses, coolant reservoir, or water pump.
  • Estimated Cost to Fix: $100 - $1000+
  • Recalls: None Found

Transmission

ZF 8HP 8-Speed Automatic

• Rough Shifting/Hesitation
  • Description/Symptoms: Jerky or delayed shifts, especially at lower speeds. Some owners report hesitation when accelerating.
  • Solution: Software update for the transmission control module (TCM). In some cases, a transmission fluid flush and filter change may help. If the issues persist, valve body replacement or full transmission replacement might be necessary.
  • Estimated Cost to Fix: $200 (Software Update) - $6000+ (Transmission Replacement)
  • Recalls: None Found

Suspension

• No Issues Found

Electrical

• iDrive System Glitches/Freezing
  • Description/Symptoms: The iDrive infotainment system freezes, lags, or restarts unexpectedly. Connectivity issues with Apple CarPlay or Android Auto.
  • Solution: Software update for the iDrive system. In some cases, a system reset may be required. If the issue persists, the iDrive control unit might need replacement.
  • Estimated Cost to Fix: $0 (Software Update) - $1500+ (iDrive Control Unit)
  • Recalls: None Found
• Sensor Malfunctions (Parking Sensors, Blind Spot Monitoring)
  • Description/Symptoms: False alarms or non-functionality of parking sensors or blind spot monitoring system.
  • Solution: Diagnose and replace faulty sensors. Check wiring and connections for damage.
  • Estimated Cost to Fix: $200 - $500+ per sensor
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Rattling/Creaking Noises from Dashboard or Trim Pieces
  • Description/Symptoms: Annoying rattles or creaks emanating from the dashboard, door panels, or other interior trim pieces, especially on rough roads.
  • Solution: Identifying and securing the loose trim pieces or applying felt tape to reduce friction.
  • Estimated Cost to Fix: $0 (DIY Fix) - $300+ (Professional Repair)
  • Recalls: None Found

Summary

The 2022 BMW M340i is a generally reliable vehicle, but owners have reported some issues, primarily related to the engine (oil leaks), the transmission (rough shifting), and electrical gremlins within the iDrive system. While some fixes are relatively inexpensive software updates or gasket replacements, more serious problems like transmission valve body failure or iDrive control unit replacement can be costly. Prospective buyers should be aware of these potential issues and ensure any used M340i has been properly maintained and inspected.