2009 BMW 550i

Introduction

The 2009 BMW 550i is a high-performance luxury sedan equipped with a powerful 4.8L V8 engine generating 360 horsepower and 360 lb-ft of torque. It is available with a 6-speed manual transmission or a 6-speed automatic transmission. The 550i is renowned for its exceptional handling, spacious interior, and advanced technology. Critics appreciate its responsive engine, comfortable ride, and refined interior, while pointing out areas for improvement like excessive body lean and a complex infotainment system.

Engine

• 4.8L V8 Engine

  • Intake valve carbon buildup
    • Description/Symptoms: Reduced engine power, rough idling, and increased fuel consumption
    • Solution: Remove and clean intake valves and manifold
    • Estimated Cost to Fix: $500 - $1000+
    • Recalls: None Found
  • Timing chain tensioner failure
    • Description/Symptoms: Rattling sound on engine startup, loss of engine power, and potential engine damage
    • Solution: Replace timing chain tensioner, chain, and guides
    • Estimated Cost to Fix: $2500 - $3500+
    • Recalls: None Found
  • Valve cover gasket leaks
    • Description/Symptoms: Oil leaks from the engine valve covers
    • Solution: Replace valve cover gaskets
    • Estimated Cost to Fix: $300 - $500+
    • Recalls: None Found

Transmission

• 6-speed Manual Transmission

  • Clutch wear
    • Description/Symptoms: Difficulty shifting gears, slipping clutch, and burnt clutch smell
    • Solution: Replace clutch assembly
    • Estimated Cost to Fix: $1000 - $1500+
    • Recalls: None Found

• 6-speed Automatic Transmission

  • Mechatronic unit failure
    • Description/Symptoms: Shifting issues, loss of gears, and transmission overheating
    • Solution: Replace mechatronic unit
    • Estimated Cost to Fix: $1500 - $2500+
    • Recalls: None Found
  • ZF transmission adapter sleeve failure
    • Description/Symptoms: Transmission fluid leaks and transmission shudder
    • Solution: Replace transmission adapter sleeve
    • Estimated Cost to Fix: $500 - $1000+
    • Recalls: None Found

Suspension

• Adaptive suspension failure
  • Description/Symptoms: Suspension malfunctions, reduced ride quality, and uneven tire wear
  • Solution: Replace adaptive suspension components (e.g., shock absorbers, sensors, control module)
  • Estimated Cost to Fix: $1000 - $2000+
  • Recalls: None Found
• Control arm bushings wear
  • Description/Symptoms: Clunking noises when driving over bumps, reduced handling precision
  • Solution: Replace control arm bushings
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Strut mounts failure
  • Description/Symptoms: Noise when turning or going over bumps, reduced handling stability
  • Solution: Replace strut mounts
  • Estimated Cost to Fix: $300 - $600+
  • Recalls: None Found

Electrical

• Battery discharge
  • Description/Symptoms: Difficulty starting the vehicle, dim interior lights, and malfunctioning electronics
  • Solution: Replace battery and check for parasitic electrical drains
  • Estimated Cost to Fix: $200 - $400+
  • Recalls: None Found
• Alternator failure
  • Description/Symptoms: Vehicle won’t start, dimming headlights, and electrical system malfunctions
  • Solution: Replace alternator
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found
• Electrical harness issues
  • Description/Symptoms: Intermittent electrical malfunctions, warning lights, and engine problems
  • Solution: Repair or replace affected electrical harness
  • Estimated Cost to Fix: $500 - $2000+
  • Recalls: None Found

Exterior

• Headlight condensation
  • Description/Symptoms: Water accumulation inside the headlights
  • Solution: Replace headlight lenses or seal
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found
• Rear bumper paint peeling
  • Description/Symptoms: Peeling paint on the rear bumper
  • Solution: Repaint rear bumper
  • Estimated Cost to Fix: $300 - $500+
  • Recalls: None Found
• Power window malfunctions
  • Description/Symptoms: Windows failing to open or close, slow window operation
  • Solution: Replace window regulators or motors
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Interior

• Navigation system freezing
  • Description/Symptoms: Navigation screen freezing or becoming unresponsive
  • Solution: Update software or replace navigation unit
  • Estimated Cost to Fix: $500 - $1500+
  • Recalls: None Found
• Leather seat bolster wear
  • Description/Symptoms: Premature wear on the leather bolsters of the seats
  • Solution: None
  • Estimated Cost to Fix: N/A
  • Recalls: None Found
• Center console trim peeling
  • Description/Symptoms: Peeling or bubbling trim on the center console
  • Solution: Replace center console trim
  • Estimated Cost to Fix: $200 - $500+
  • Recalls: None Found

Summary

While the 2009 BMW 550i is known for its performance and luxury, it has experienced a range of issues related to its engine, transmission, suspension, electrical, exterior, and interior. The severity of these issues can vary significantly, with some being relatively minor (e.g., paint peeling) while others can be costly and affect the overall reliability of the vehicle (e.g., timing chain tensioner failure). Potential owners should be aware of these potential issues and consider the associated repair costs before purchasing a 550i.