2014 BMW 520i

The 2014 BMW 520i is a popular executive sedan known for its blend of luxury, comfort, and driving dynamics. The specific model you’re asking about is the 520i, which typically comes equipped with a 2.0-liter turbocharged inline-4 gasoline engine producing around 184 horsepower and 270 Nm of torque. Other engine options available for the 2014 5 Series lineup (depending on the market) include other variants of the 2.0-liter inline-4, a 3.0-liter inline-6 gasoline engine, and diesel engines. Transmission options generally include an 8-speed automatic. Owners generally appreciate the 520i’s comfortable ride, stylish interior, fuel efficiency (especially for the 520i), and overall driving experience. Some common dislikes include higher maintenance costs compared to non-luxury brands, certain electronic gremlins, and the potential for expensive repairs as the car ages.

Engine

2.0L Turbocharged Inline-4 (N20 Engine)

• 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 drips under the car, a burning oil smell, and low oil levels.
  • Solution: Replace the faulty gasket or seal. Thoroughly clean the affected area before installing the new part.
  • Estimated Cost to Fix: $200 - $800+ depending on the location of the leak and labor rates.
  • Recalls: None Found
• Timing Chain Issues
  • Description/Symptoms: The N20 engine is known for potential timing chain issues. Symptoms include a rattling noise upon start-up, especially when cold. In severe cases, timing chain failure can lead to engine damage.
  • Solution: Replace the timing chain, tensioner, and guides. It’s often recommended to replace the sprockets as well.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found
• VANOS Solenoid Problems
  • Description/Symptoms: Variable Valve Timing (VANOS) solenoid failures can cause rough idling, poor performance, and a check engine light.
  • Solution: Replace the faulty VANOS solenoid(s).
  • Estimated Cost to Fix: $300 - $600
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP)

• Rough Shifting/Hesitation
  • Description/Symptoms: Some owners report experiencing rough shifting, hesitation, or delayed engagement, especially at lower speeds.
  • Solution: In some cases, a transmission fluid flush and software update can resolve the issue. More severe cases may require valve body repair or replacement.
  • Estimated Cost to Fix: $300 (fluid flush) - $3000+ (valve body replacement)
  • Recalls: None Found

Suspension

• Control Arm Bushing Failure
  • Description/Symptoms: Worn control arm bushings can cause clunking noises from the front or rear suspension, especially when going over bumps. It can also lead to vague steering and uneven tire wear.
  • Solution: Replace the worn control arm bushings or the entire control arm assembly.
  • Estimated Cost to Fix: $300 - $800+ per side, depending on whether bushings or the entire arm is replaced.
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Some owners have experienced issues with excessive battery drain, leading to a dead battery, especially if the car is not driven frequently.
  • Solution: Diagnose the source of the drain (e.g., faulty module, aftermarket accessories). Repair or replace the problematic component. Perform a parasitic draw test.
  • Estimated Cost to Fix: $100 - $1000+ depending on the source of the drain.
  • Recalls: None Found
• iDrive System Malfunctions
  • Description/Symptoms: The iDrive system can experience glitches, freezes, or complete failures. This can affect navigation, audio, and vehicle settings.
  • Solution: In some cases, a software update can resolve the issue. More severe cases may require replacement of the iDrive module.
  • Estimated Cost to Fix: $100 - $1500+ depending on the problem and solution.
  • Recalls: None Found

Exterior

• Door Handle Issues
  • Description/Symptoms: Problems with the comfort access system where the door handles do not sense you grabbing them, or the door locks without even touching the handle.
  • Solution: Replacement of the door handle.
  • Estimated Cost to Fix: $300-1000+

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof may get stuck when opening or closing.
  • Solution: Cleaning of the sunroof rails, and replacing the sunroof motor.
  • Estimated Cost to Fix: $100 - $1000+

Summary

The 2014 BMW 520i, while a comfortable and enjoyable car, can present several potential issues as it ages. The most significant concerns revolve around the N20 engine’s timing chain and oil leak problems, which can lead to expensive repairs. Electrical issues, particularly battery drain and iDrive malfunctions, are also common. Suspension and transmission issues, while less frequent, can still contribute to the overall cost of ownership. The severity of these issues varies, but addressing them promptly is crucial to maintaining the car’s reliability and preventing further damage. Prospective buyers should be aware of these potential problems and factor them into their purchasing decision. A thorough pre-purchase inspection by a qualified mechanic is highly recommended.