2018 BMW 440i Gran Coupe

Here’s a breakdown of common issues and complaints associated with the 2018 BMW 440i Gran Coupe, organized by category and specifying engine and transmission options where applicable. This information is based on owner reports, forum discussions, and repair data. The 2018 BMW 440i Gran Coupe is praised for its sporty handling, sleek design, and relatively practical hatchback configuration. However, owners have reported some recurring issues. The 440i Gran Coupe is powered by a 3.0-liter turbocharged inline-6 engine (B58), producing 320 horsepower and 330 lb-ft of torque. Other engine options include a 2.0-liter turbocharged inline-4. The vehicle is equipped with an 8-speed automatic transmission. Some common complaints include electrical glitches, oil leaks, and the cost of maintenance.

Engine

B58 3.0L Turbocharged Inline-6

• Oil Filter Housing Gasket Leak
  • Description/Symptoms: Oil leak near the top front of the engine, visible drips, oil smell.
  • Solution: Replace the oil filter housing gasket.
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found
• Coolant Leaks (various locations)
  • Description/Symptoms: Low coolant warning, visible coolant leaks near the water pump, hoses, or expansion tank.
  • Solution: Identify the source of the leak (water pump, hoses, expansion tank) and replace the faulty component.
  • Estimated Cost to Fix: $200 - $1000+ (depending on the source)
  • Recalls: None Found
• Valve Cover Gasket Leak
  • Description/Symptoms: Oil leak down the side of the engine, burning oil smell.
  • Solution: Replace the valve cover gasket.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP)

• Rough Shifting/Hesitation
  • Description/Symptoms: Jerky shifts, hesitation during acceleration, particularly between certain gears.
  • Solution: Software update/reprogramming of the transmission control module (TCM) or transmission service/fluid change. In severe cases, valve body replacement may be necessary.
  • Estimated Cost to Fix: $200 - $3000+
  • Recalls: None Found
• Mechatronic Sleeve Leak
  • Description/Symptoms: Transmission fluid leak near the transmission pan.
  • Solution: Replace the mechatronic sleeve.
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found

Suspension

• No Issues Found

Electrical

• Idrive system issues
  • Description/Symptoms: iDrive system freezes, reboots unexpectedly, or exhibits glitches with navigation, audio, or other features.
  • Solution: Software updates, replacement of iDrive control module in extreme cases.
  • Estimated Cost to Fix: $0 (if software update resolves) - $1500+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Dead battery, frequent jump starts required.
  • Solution: Diagnose parasitic drain, replace faulty components (e.g., comfort access module, amplifier, etc.), or replace the battery.
  • Estimated Cost to Fix: $200 - $800+
  • Recalls: None Found
• Door Lock Actuator Failure
  • Description/Symptoms: Door locks not functioning properly (not locking/unlocking), unusual noises from the door lock mechanism.
  • Solution: Replace the faulty door lock actuator.
  • Estimated Cost to Fix: $250 - $500+
  • Recalls: None Found

Exterior

• Cracked Charge Pipes
  • Description/Symptoms: Loss of power, engine malfunction light.
  • Solution: Replace the cracked charge pipes.
  • Estimated Cost to Fix: $150 - $400
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof malfunctions, including failure to open or close completely, unusual noises during operation, or water leaks.
  • Solution: Repair or replace sunroof motor, tracks, or seals.
  • Estimated Cost to Fix: $300 - $1200+
  • Recalls: None Found

Summary

The 2018 BMW 440i Gran Coupe, while a desirable vehicle with a potent engine and stylish design, is not without its issues. Oil leaks, particularly from the oil filter housing and valve cover gasket, are relatively common and can lead to moderate repair costs. Electrical glitches, such as iDrive malfunctions and battery drain, can also be frustrating. The transmission may experience rough shifting, potentially requiring expensive repairs. Overall, prospective buyers should be aware of these potential issues and factor in maintenance and repair costs when considering this vehicle.