2015 BMW 428i xDrive Gran Coupe

The 2015 BMW 428i xDrive Gran Coupe is a stylish and sporty four-door coupe that offers a blend of practicality and performance. It was available with two engine options: a 2.0-liter turbocharged inline-4 (N20 engine) producing 240 horsepower and 255 lb-ft of torque, or a 3.0-liter turbocharged inline-6 (N55 engine) in the 435i xDrive Gran Coupe producing 300 horsepower and 300 lb-ft of torque. Both engines were paired with either an 8-speed automatic transmission. The all-wheel drive xDrive system provides enhanced traction and handling in various conditions. People generally like the 428i Gran Coupe for its sleek design, comfortable interior, and engaging driving dynamics. Some common dislikes include relatively high maintenance costs compared to other brands, and some reported issues with reliability.

Engine

2.0L Turbocharged Inline-4 (N20)

• Oil Leaks
  • Description/Symptoms: Oil leaks can occur from various locations, including the valve cover gasket, oil filter housing gasket, and oil pan gasket. Symptoms include visible oil leaks, a burning oil smell, and low oil levels.
  • Solution: Replacing the affected gasket or seal is the typical solution.
  • Estimated Cost to Fix: $200 - $800+, depending on the location of the leak and labor costs.
  • Recalls: None Found
• Timing Chain Issues
  • Description/Symptoms: The N20 engine is known for potential timing chain failures. Symptoms include a rattling noise upon startup, especially when cold, and potential engine misfires or stalling. In severe cases, timing chain failure can cause significant engine damage.
  • Solution: Replacing the timing chain, guides, and tensioner. Sometimes, if the chain has stretched excessively, other components may also need to be replaced.
  • Estimated Cost to Fix: $1,500 - $3,000+
  • Recalls: None Found
• Coolant Leaks
  • Description/Symptoms: Coolant leaks can stem from the water pump, coolant hoses, or expansion tank. Common symptoms include low coolant levels, overheating, and visible coolant leaks.
  • Solution: Replacing the faulty component, whether it’s a hose, the water pump, or the expansion tank.
  • Estimated Cost to Fix: $200 - $1,000+, depending on the part and labor.
  • Recalls: None Found

Transmission

8-Speed Automatic Transmission

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners have reported experiencing rough shifting, hesitation, or delayed engagement when shifting between gears. This is most commonly reported between 1st and 2nd gear.
  • Solution: Some owners have had success with transmission fluid changes. In more severe cases, valve body replacement or transmission replacement may be required.
  • Estimated Cost to Fix: $300 (fluid change) - $5,000+ (transmission replacement). Valve body is around $1,500- $2,500.
  • Recalls: None Found

Suspension

• No Issues Found

Electrical

• Battery Drain
  • Description/Symptoms: Excessive battery drain leading to a dead battery. This can be caused by a variety of factors, including a faulty alternator, parasitic drain from an electronic component, or a failing battery.
  • Solution: Diagnosing the source of the drain is crucial. This may involve testing the alternator, checking for parasitic draws, and testing the battery’s health. Replacing the faulty component is the typical solution.
  • Estimated Cost to Fix: $150 - $500+, depending on the cause of the drain.
  • Recalls: None Found
• iDrive System Issues
  • Description/Symptoms: Problems with the iDrive system, including screen freezes, unresponsive controls, and software glitches.
  • Solution: Software updates can sometimes resolve these issues. In more severe cases, the iDrive control unit may need to be replaced.
  • Estimated Cost to Fix: $100 - $1,000+, depending on the solution.
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• No Issues Found

Summary

The 2015 BMW 428i xDrive Gran Coupe can suffer from some notable issues, primarily related to the engine and transmission. Timing chain problems on the N20 engine can be costly, and oil leaks are also a common concern. While the 8-speed transmission is generally reliable, some owners have reported rough shifting issues. Electrical problems such as battery drain can also occur. While some of these issues are relatively minor and inexpensive to fix, others can be quite expensive. Potential buyers should be aware of these potential problems and have a thorough inspection performed before purchasing a used 428i xDrive Gran Coupe.