2018 BMW 440i xDrive Gran Coupe

The 2018 BMW 440i xDrive Gran Coupe is a stylish and sporty four-door coupe that blends practicality with driving enjoyment. It is powered by a turbocharged 3.0-liter inline-six engine, producing 320 horsepower and 330 lb-ft of torque. Other engine options in the 4 Series Gran Coupe line include the 430i with a turbocharged 2.0-liter inline-four. Both engines are typically paired with an 8-speed automatic transmission, though a 6-speed manual was briefly available. Owners often praise the 440i for its strong acceleration, comfortable ride, and attractive styling. Common complaints revolve around higher maintenance costs, some electrical gremlins, and the run-flat tires that contribute to a harsher ride on rough roads.

Engine

B58 3.0L Turbocharged Inline-Six

• Oil Filter Housing/Cooler Gasket Leaks
  • Description/Symptoms: Oil leaks originating from the oil filter housing/cooler area. This can lead to oil loss, a burning oil smell, and potential engine damage if left unattended.
  • Solution: Replacement of the oil filter housing gasket and potentially the oil cooler gasket.
  • Estimated Cost to Fix: $400 - $800+
• Coolant Leaks
  • Description/Symptoms: Coolant leaks, often from hoses, the expansion tank, or the water pump. Low coolant levels can lead to overheating.
  • Solution: Identify the source of the leak and replace the faulty component (hose, tank, pump, etc.).
  • Estimated Cost to Fix: $150 - $1000+ (depending on the component and labor)
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks around the valve cover area, which can cause a burning smell and potential damage to other engine components.
  • Solution: Replacement of the valve cover gasket.
  • Estimated Cost to Fix: $300 - $700+
  • Recalls: None Found

Transmission

ZF 8HP 8-Speed Automatic

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners have reported rough or hesitant shifting, particularly at lower speeds.
  • Solution: Some success has been found with transmission fluid flushes and software updates. More severe cases may require valve body repair or replacement.
  • Estimated Cost to Fix: $300 (fluid flush) - $3,000+ (valve body)
  • Recalls: None Found

Suspension

• Adaptive Suspension (If Equipped) Malfunctions
  • Description/Symptoms: Faulty struts and shocks will create a very uncomfortable and bouncy ride
  • Solution: Replacement of the affected struts/shocks.
  • Estimated Cost to Fix: $1,000 - $3,000
  • Recalls: None Found
• Control Arm Bushing Wear
  • Description/Symptoms: Premature wear of control arm bushings, leading to clunking noises, imprecise handling, and uneven tire wear.
  • Solution: Replacement of the worn control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $300 - $800+ per arm

Electrical

• iDrive System Issues
  • Description/Symptoms: Freezing, crashing, or unresponsive behavior of the iDrive infotainment system.
  • Solution: Software updates often resolve these issues. In some cases, replacement of the iDrive control unit may be necessary.
  • Estimated Cost to Fix: $0 (software update) - $1,500+ (control unit)
• Sensor Malfunctions (e.g., Parking Sensors, TPMS)
  • Description/Symptoms: Faulty sensors can trigger warning lights and disable related features.
  • Solution: Diagnosis and replacement of the malfunctioning sensor.
  • Estimated Cost to Fix: $100 - $500+ per sensor
• Battery Drain
  • Description/Symptoms: Premature battery drain, leading to starting problems.
  • Solution: Identifying the source of the drain (e.g., a faulty module or accessory) and repairing or replacing it. Battery replacement may also be necessary.
  • Estimated Cost to Fix: $200 - $500+ (depending on the cause)
  • Recalls: None Found

Exterior

• Door Handle Issues
  • Description/Symptoms: Issues with the comfort access system. In some cases, the door handles can fail to open properly.
  • Solution: Replacement of the faulty door handle.
  • Estimated Cost to Fix: $300 - $700+ per handle
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof malfunctioning, not opening or closing properly, or making excessive noise.
  • Solution: Diagnosis and repair of the sunroof mechanism, which may involve lubrication, track adjustment, or component replacement.
  • Estimated Cost to Fix: $200 - $1,000+
• Seat Heater Malfunction
  • Description/Symptoms: Seat heaters not working or overheating.
  • Solution: Replacement of faulty heating element or control module.
  • Estimated Cost to Fix: $200 - $800+

Summary

The 2018 BMW 440i xDrive Gran Coupe is generally a reliable vehicle, but like all cars, it has its share of potential problems. The most common issues revolve around engine oil leaks, electrical gremlins, and suspension component wear. While some of these issues can be relatively minor and inexpensive to fix, others, such as valve body repair or iDrive control unit replacement, can be quite costly. Prospective buyers should be aware of these potential problems and factor them into their ownership costs. A pre-purchase inspection by a qualified BMW mechanic is highly recommended.