2016 BMW 520i

The 2016 BMW 520i is a popular executive sedan known for its blend of luxury, comfort, and performance. The 520i’s engine is a 2.0-liter turbocharged inline-4, producing around 184 horsepower and 290 Nm (214 lb-ft) of torque. Other engine options for the 2016 BMW 5 Series include a range of petrol and diesel engines, from the more economical 518d to the more powerful 535i and the high-performance M5. Transmission options typically include a 6-speed manual and an 8-speed automatic. Owners generally appreciate the 5 Series for its refined driving experience, comfortable interior, and advanced technology features. Common dislikes include higher maintenance costs compared to non-luxury brands and potential electrical gremlins.

Engine

2.0L Turbocharged Inline-4 (N20/B48 Engine)

• Oil Leaks
  • Description/Symptoms: Oil leaks are fairly common, often originating from the valve cover gasket, oil filter housing gasket, or the oil pan gasket. Symptoms include visible oil leaks, oil puddles under the car, and a burning oil smell.
  • Solution: Replacing the affected gasket. The valve cover gasket and oil filter housing gasket are relatively straightforward, while the oil pan gasket replacement can be more involved.
  • Estimated Cost to Fix: $150 - $800+ depending on the leak’s location and labor rates.
  • Recalls: None Found
• Timing Chain Issues (N20 Engine)
  • Description/Symptoms: This mostly affects the N20 engine. Timing chain wear and potential failure. Symptoms include a rattling noise from the engine, especially on startup, and potential engine misfires or failure.
  • Solution: Replacing the timing chain, chain guides, and tensioner.
  • Estimated Cost to Fix: $1,200 - $2,500+
  • Recalls: None Found

Transmission

8-Speed Automatic (ZF 8HP)

• Rough Shifting
  • Description/Symptoms: The ZF 8HP transmission, while generally reliable, can sometimes exhibit rough or jerky shifting, especially between lower gears. This can be exacerbated by infrequent fluid changes.
  • Solution: Performing a transmission fluid and filter change. If the problem persists, further diagnostics may be needed to check for valve body issues.
  • Estimated Cost to Fix: $300 - $600 for fluid and filter change. Valve body repair or replacement can significantly increase costs ($1,500 - $3,000+).
  • Recalls: None Found
• Mechatronic Sleeve Leaks
  • Description/Symptoms: Leaks from the mechatronic unit sleeve, which seals the electrical connector to the transmission. Results in low transmission fluid levels.
  • Solution: Replacing the mechatronic sleeve.
  • Estimated Cost to Fix: $400 - $800+
  • Recalls: None Found

Suspension

• Control Arm Bushing Failure
  • Description/Symptoms: Worn or cracked control arm bushings can lead to clunking noises from the suspension, especially when going over bumps. It can also affect handling and alignment.
  • Solution: Replacing the affected control arm(s) and/or bushings.
  • Estimated Cost to Fix: $200 - $600+ per control arm.
  • Recalls: None Found

Electrical

• iDrive System Malfunctions
  • Description/Symptoms: The iDrive infotainment system can occasionally experience glitches, freezes, or complete failures. This can affect navigation, audio, and other vehicle functions.
  • Solution: Software updates can sometimes resolve the issue. In more severe cases, the iDrive unit may need to be replaced.
  • Estimated Cost to Fix: $0 (for software update) - $1,000+ (for unit replacement).
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Excessive battery drain can lead to difficulty starting the car, especially after it has been sitting for an extended period. Potential causes include faulty modules, aftermarket accessories, or a failing battery.
  • Solution: Diagnosing the source of the drain and replacing the faulty component or the battery itself.
  • Estimated Cost to Fix: $200 - $500+ depending on the cause.
  • Recalls: None Found

Exterior

• No Issues Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof malfunctions such as sticking, failing to open or close properly, or making excessive noise.
  • Solution: Cleaning and lubricating the sunroof tracks and mechanism. In some cases, the sunroof motor or other components may need to be replaced.
  • Estimated Cost to Fix: $100 - $800+ depending on the severity and parts needed.
  • Recalls: None Found

Summary

The 2016 BMW 520i, while a desirable vehicle, can present owners with several potential issues. The engine and transmission issues, particularly timing chain problems on the N20 engine and rough shifting on the ZF 8HP, can be costly to repair. Electrical issues like iDrive malfunctions and battery drain are also fairly common. Suspension and sunroof repairs can add to the overall cost of ownership. While some issues are relatively minor, others can be quite severe, potentially resulting in expensive repairs. Pre-purchase inspection and careful maintenance are essential for this model year.