2011 Infiniti M56 Report
Known issues, recalls, running costs, and what to check before you buy.
Overall Score
Key Takeaways
- The 5.6L V8 engine provides ample power but demands premium fuel, contributing to higher running costs.
- With a combined EPA rating of 19 MPG, expect frequent stops at the pump.
- The driveshaft is a critical component with a history of recalls, making it the highest priority for inspection.
- While NHTSA reports zero complaints, the extensive recall activity, particularly for the driveshaft, warrants caution.
2011 Infiniti M56
Critical Failure Risk
The driveshaft can fracture, leading to a loss of power and potential component separation. This issue has been the subject of multiple recall campaigns.
Early detection can help you avoid a $800-$1,500 repair.
Safety & Bulletins
Owner Complaints
No primary complaint themes found.
Performance & Efficiency
Reliability
Practicality
The score is mainly limited by high fuel consumption.
Who This Car Is For
Best for
Drivers seeking a powerful and luxurious sedan with a strong V8 engine.
+3 more buyer-fit notes in the full report
Avoid if
Buyers prioritizing absolute mechanical dependability and minimal repair risk.
+3 more buyer-fit warnings in the full report
2011 Infiniti M56 Reliability Analysis
Explore comprehensive reliability data including official safety recalls, consumer complaints, and common mechanical failures for the 2011 Infiniti M56.
Vehicle Specs
- Fuel Type
- Premium
- Transmission
- Automatic (S7)
- Drivetrain
- Rear-Wheel Drive
- Body Style
- Sedan
- EPA Combined MPG
- 19
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Most Common Issues
1. Driveshaft Failure
Most reportedUsage data observed
First Service Interval
- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection
Est. shop cost: $100 - $175
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FAQ
Is the 2011 Infiniti M56 reliable?
The CarFocal Reliability Score for the 2011 Infiniti M56 is 9.1/10. Reliability score is 9.1/10. NHTSA recalls: 11. Owner complaints: 0.
How practical is the 2011 Infiniti M56 for daily use?
Practicality score is 5.0/10. The score is mainly limited by high fuel consumption. EPA combined economy is 19 MPG.
What is the overall score for the 2011 Infiniti M56?
The CarFocal Overall Score for the 2011 Infiniti M56 is 6.9/10. Overall score is 6.9/10 (Good). Confidence 85%. Maintenance 8.7/10. Practicality 5.0/10.
What does it cost to own and maintain a 2011 Infiniti M56?
Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection at 5,000 miles. Estimated first-year maintenance: $600 - $1,000. Repair prediction highlight: Driveshaft (typical at 75,000 miles, estimated cost Min: $800 • Max: $1,500).
What engine is in the 2011 Infiniti M56?
Engine specs list 8 • 5.6.
What transmission does the 2011 Infiniti M56 use?
According to CarFocal's specs for the 2011 Infiniti M56, transmission is Automatic (S7). The paired drivetrain is Rear-Wheel Drive.
Does the 2011 M56 require Premium gas?
Manufacturer fuel recommendation: Premium.
What is the combined EPA MPG for the 2011 Infiniti M56?
EPA combined estimate is 19 MPG.
What driver assistance and safety features are available on the 2011 Infiniti M56?
1 standard driver assistance features. Key features include Tire Pressure Monitoring System.
What body style is the 2011 Infiniti M56?
According to CarFocal's specs for the 2011 Infiniti M56, body style is sedan.
What drivetrain does the 2011 Infiniti M56 use?
According to CarFocal's specs for the 2011 Infiniti M56, drivetrain is Rear-Wheel Drive. Transmission is Automatic (S7).
What are the NHTSA safety ratings for the 2011 Infiniti M56?
NHTSA ratings: Overall 4/5 • Frontal 4/5 • Side 5/5 • Rollover 4/5.
Are there open safety recalls on the 2011 Infiniti M56?
This model year has 11 official safety campaigns listed.
Should buyers consider alternatives to the 2011 Infiniti M56?
Alternative listed in this guide: 2011 Mercedes-Benz E-Class.