2018 BMW X4

The 2018 BMW X4 is a sporty crossover coupe that blends the practicality of an SUV with the styling of a coupe. Engine options for the 2018 X4 included a 2.0-liter turbocharged four-cylinder (xDrive28i) producing 240 horsepower and 260 lb-ft of torque, and a 3.0-liter turbocharged inline-six (xDrive35i/M40i) delivering 355 horsepower and 343 lb-ft of torque (M40i). All models are equipped with an 8-speed automatic transmission. Owners often appreciate the X4’s distinctive styling, agile handling, and upscale interior. Criticisms frequently focus on its compromised rear headroom and cargo space compared to more traditionally shaped SUVs, as well as its higher price point.

Engine

2.0L Turbocharged Four-Cylinder (xDrive28i)

• Oil Leaks
  • Description/Symptoms: Oil leaks can develop from the valve cover gasket, oil filter housing gasket, or oil pan gasket. Symptoms include visible oil leaks, burning oil smell, and low oil levels.
  • Solution: Replace the leaking gasket.
  • Estimated Cost to Fix: $200 - $600+ depending on the location and complexity of the repair.
  • Recalls: None Found

3.0L Turbocharged Inline-Six (xDrive35i/M40i)

• Oil Filter Housing Gasket Leak
  • Description/Symptoms: Oil leaks from the oil filter housing. Symptoms are a burning oil smell, visible oil leaks near the front of the engine, and a low oil level.
  • Solution: Replace the oil filter housing gasket.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Transmission

8-Speed Automatic (All Models)

• Rough Shifting/Hesitation
  • Description/Symptoms: Reports of rough or delayed shifting, particularly between lower gears, and hesitation during acceleration.
  • Solution: Software update to the transmission control module (TCM) or replacement of valve body.
  • Estimated Cost to Fix: $200-$400 (software update), $1500-$3500 (valve body replacement).
  • Recalls: None Found

Suspension

• No Issues Found

Electrical

• iDrive System Malfunctions
  • Description/Symptoms: The iDrive infotainment system can experience glitches, freezing, or complete failure. This can affect navigation, audio, and vehicle settings.
  • Solution: Software update, replacement of the iDrive control unit.
  • Estimated Cost to Fix: $150 - $400 (software update), $800-$2000+ (control unit replacement).
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Premature battery drain can occur, especially if the vehicle is not driven regularly. This can lead to difficulty starting the car or complete battery failure.
  • Solution: Identify and repair any parasitic draws on the battery, replace the battery.
  • Estimated Cost to Fix: $150 - $300 (battery replacement), $100-$500+ (diagnosis and repair of parasitic draw).
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof may fail to open or close properly, or may leak.
  • Solution: Repair or replacement of sunroof motor or seals.
  • Estimated Cost to Fix: $300-$1000+
  • Recalls: None Found

Summary

The 2018 BMW X4 exhibits a range of potential issues, from relatively minor oil leaks to more significant problems with the transmission or iDrive system. The severity and cost of these issues vary, but some repairs, such as valve body replacement or iDrive control unit replacement, can be quite expensive. While many of these issues are not necessarily widespread, potential buyers should be aware of them and consider having a pre-purchase inspection performed by a qualified mechanic. The most common issues are Electrical and engine related.