2023 BMW M240i

The 2023 BMW M240i is a performance-oriented compact coupe/convertible praised for its engaging driving dynamics and powerful engine. It comes standard with a turbocharged 3.0-liter inline-6 engine (B58) producing 382 horsepower and 369 lb-ft of torque. All models are equipped with an 8-speed automatic transmission. Drivers often commend the M240i for its blend of speed, agility, and everyday usability. However, some criticisms include a relatively firm ride, limited rear seat space (especially in the coupe), and the absence of a manual transmission option.

Engine

3.0L Turbocharged Inline-6 (B58)

• Coolant Leak
  • Description/Symptoms: Coolant leak, often noticed by the smell of coolant, visible coolant drips, or low coolant warning lights. Sometimes difficult to pinpoint the exact location.
  • Solution: Thorough inspection of coolant hoses, expansion tank, water pump, and radiator. Replace the faulty component.
  • Estimated Cost to Fix: $200 - $1000+ depending on the component and labor.
  • Recalls: None Found
• High Pressure Fuel Pump (HPFP) Failure
  • Description/Symptoms: Long crank times, rough idling, hesitation during acceleration, or engine stalling. Diagnostic codes related to fuel pressure.
  • Solution: Replacement of the HPFP.
  • Estimated Cost to Fix: $1000 - $2000+
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP51)

• Rough Shifting/Hesitation
  • Description/Symptoms: Harsh or jerky shifts, especially between lower gears. Hesitation or delay when shifting under heavy acceleration.
  • Solution: Transmission software update may resolve the issue. If not, 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

• Infotainment System Glitches
  • Description/Symptoms: Freezing, slow response times, or random reboots of the iDrive infotainment system. Connectivity issues with Apple CarPlay or Android Auto.
  • Solution: Software updates for the iDrive system, or in some cases, replacement of the head unit.
  • Estimated Cost to Fix: $0 (software update) - $1500+ (head unit replacement)
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Creaking/Rattling Noises
  • Description/Symptoms: Annoying creaking or rattling sounds emanating from the dashboard, door panels, or rear parcel shelf.
  • Solution: Identifying the source of the noise and applying felt tape, foam padding, or tightening loose fasteners.
  • Estimated Cost to Fix: $50 - $500+ depending on the complexity of the fix and if professional labor is needed.
  • Recalls: None Found

Summary

The 2023 BMW M240i generally enjoys a reputation for reliability, but some common issues have been reported. Engine issues, such as coolant leaks and HPFP failure, are relatively common and can be expensive to address. The 8-speed transmission may exhibit rough shifting or hesitation, potentially requiring a software update or more substantial repairs. Electrical glitches with the infotainment system can also occur. Interior noises are mostly cosmetic but can be irritating. While the severity and cost of potential issues vary, prospective buyers should be aware of these common complaints and consider them when evaluating the vehicle.