2011 INFINITI M37

The 2011 INFINITI M37 is a mid-size luxury sedan that offers a blend of performance and comfort. It was available with two engine options: a 3.7-liter V6 engine producing 330 horsepower and 270 lb-ft of torque, and a 5.6-liter V8 engine (M56) with 420 horsepower and 417 lb-ft of torque. Both engines were paired with a 7-speed automatic transmission. Owners generally appreciate the M37 for its stylish design, powerful engine options, and comfortable interior. Common dislikes include the somewhat dated infotainment system, occasional reliability concerns, and higher maintenance costs compared to non-luxury vehicles.

Engine

3.7L V6

• Oil Consumption
  • Description/Symptoms: Some owners have reported excessive oil consumption, requiring frequent oil top-offs between scheduled oil changes. Symptoms include the need to add oil more frequently than expected, blue smoke from the exhaust, and potential engine damage if oil levels are not maintained.
  • Solution: Regular monitoring of oil levels and potential repairs, such as replacing valve stem seals or piston rings, may be required.
  • Estimated Cost to Fix: $1,500 - $4,000+ depending on the extent of the damage and repair needed
  • Recalls: None Found
• Timing Chain Issues
  • Description/Symptoms: The VQ37VHR engine can suffer from timing chain stretch or failure, leading to rough running, poor performance, and engine noise (rattling).
  • Solution: Replacement of the timing chain, tensioners, and guides.
  • Estimated Cost to Fix: $1,500 - $3,000
  • Recalls: None Found

5.6L V8

• Oil Consumption
  • Description/Symptoms: Similar to the V6, the V8 engine can also experience excessive oil consumption.
  • Solution: Monitoring oil levels and possible repairs such as replacing valve stem seals or piston rings.
  • Estimated Cost to Fix: $2,000 - $5,000+ depending on the extent of the damage and repair needed.
  • Recalls: None Found

Transmission

7-Speed Automatic (Both Engine Options)

• Rough Shifting
  • Description/Symptoms: Some owners have noted rough or delayed shifting, particularly when cold. This can manifest as harsh upshifts or downshifts and a general lack of smoothness in gear changes.
  • Solution: Transmission fluid flush and filter change. In some cases, valve body replacement or a complete transmission rebuild may be necessary.
  • Estimated Cost to Fix: $300 (fluid flush) - $3,500+ (rebuild)
  • Recalls: None Found

Suspension

• No Issues Found

Electrical

• Navigation/Infotainment System Issues
  • Description/Symptoms: The navigation and infotainment system can experience glitches, freezing, or complete failure. Issues may include screen malfunctions, inability to input destinations, or loss of audio functionality.
  • Solution: Software update or replacement of the head unit.
  • Estimated Cost to Fix: $100 (Software Update) - $1,000+ (Replacement)
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Some owners have reported experiencing battery drain issues, where the battery is depleted overnight or within a short period of time. This can be caused by a parasitic draw from an electrical component.
  • Solution: Identify and repair the source of the parasitic draw, which may involve testing and replacing faulty components.
  • Estimated Cost to Fix: $100 - $500+ depending on the component causing the issue.
  • Recalls: None Found
• Door Lock Actuator Failure
  • Description/Symptoms: The door lock actuators can fail, resulting in the inability to lock or unlock doors remotely or manually.
  • Solution: Replacement of the faulty door lock actuator.
  • Estimated Cost to Fix: $200 - $400 per door.
  • Recalls: None Found

Exterior

• Headlight Condensation
  • Description/Symptoms: Moisture can accumulate inside the headlight housings, leading to condensation and reduced visibility.
  • Solution: Sealing the headlight housing or replacing the headlight assembly.
  • Estimated Cost to Fix: $100 - $800+
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: The sunroof may experience issues with opening, closing, or sealing properly. This can be caused by a faulty sunroof motor, damaged seals, or a misaligned track.
  • Solution: Repair or replacement of the sunroof motor, seals, or track components.
  • Estimated Cost to Fix: $200 - $1,000+
  • Recalls: None Found

Summary

The 2011 INFINITI M37 has a mix of potential issues, ranging from moderate to severe. The most prevalent concerns revolve around the engine (oil consumption, timing chain) and transmission (rough shifting). Electrical issues, like infotainment problems and battery drain, also appear. The cost to address these issues can vary widely, from a few hundred dollars for minor repairs to several thousand for major engine or transmission work. The severity of these issues can affect the overall ownership experience and should be taken into consideration when purchasing a used 2011 INFINITI M37.