The 2012 Infiniti M56 is a luxurious rear-wheel-drive sedan that was part of Infiniti's M sedan lineup, which ran from 2006 to 2013. This model year offered a powerful V8 engine and a refined interior, making it a compelling choice in the premium mid-size sedan segment. Key trims were typically the M56 and the M56x (all-wheel drive). It stood out with its potent performance and sophisticated styling, appealing to buyers seeking a blend of sportiness and elegance.
The Good
The 2012 M56 excels with its exhilarating V8 performance and a plush, comfortable interior that coddles occupants. Its sleek design evokes a sense of prestige, while its robust construction suggests good long-term reliability, offering a strong value proposition for those seeking a premium sedan without an exorbitant price tag.
The Bad
Potential buyers should be aware of the M56's somewhat dated infotainment system compared to newer rivals and a firm ride that some may find less comfortable. Fuel economy is also a significant drawback due to the powerful V8 engine.
2012 Infiniti M56: Quick Overview
- Engine Options:
The 2012 Infiniti M56 featured a single, potent engine option: a 5.6-liter V8. - Horsepower:
This V8 engine produced a robust 420 horsepower. - Torque:
Paired with 417 lb-ft of torque. - Transmission:
A 7-speed automatic transmission with manual shift mode and Downshift Rev Matching was standard. - Drivetrain:
Available in rear-wheel drive (M56) or all-wheel drive (M56x). - Fuel Economy (EPA Estimated):
- RWD: 16 MPG city / 23 MPG highway
- AWD: 16 MPG city / 22 MPG highway - 0-60 MPH Times:
Approximately in the mid-to-high 4-second range, demonstrating strong acceleration. - Towing Capacity:
Towing capacity is not a primary focus for this luxury sedan and is generally not specified or recommended by Infiniti for this model. - Trim-Level Features:
The 2012 M56 came well-equipped as standard. Key features included:- Leather upholstery
- Heated and ventilated front seats
- Power-adjustable front seats with driver memory
- Dual-zone automatic climate control
- Infiniti Intelligent Key with push-button ignition
- Bluetooth hands-free phone system
- USB/iPod interface
- Premium audio system
- Bi-Xenon headlights
- 18-inch alloy wheels
- Sunroof
- Backup camera
- Navigation system with Infiniti Connection services
- Bose premium audio system
- Around View Monitor (360-degree camera system)
- Blind Spot Warning/Intervention
- Lane Departure Warning/Prevention
- Intelligent Cruise Control
- Forest Air filtration system
- Sport package (sport-tuned suspension, paddle shifters, unique interior/exterior accents)
- Deluxe Touring package (premium leather, heated rear seats, power rear sunshade)
2012 Infiniti M56 Specifications
Vehicle Information
| Year | 2012 |
| Make | Infiniti |
| Model | M56 |
| Trim | - |
| Style | - |
| Type | Sedan |
| Category | Large Car |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | TOCHIGI |
Dimensions
| Doors | 4-Door |
| Curb Weight | 4224 pounds |
| Gross Vehicle Weight Rating | 5279 pounds |
| Overall Height | 59.60 inches |
| Overall Length | 194.70 inches |
| Overall Width | 72.60 inches |
| Wheelbase Length | 114.20 inches |
| Standard Seating | 5 |
Engine & Performance
| Engine | 5.6L V8 |
| Engine Size | 5.6L |
| Engine Cylinders | 8 |
| Transmission | 7-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 7-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $61,600 |
| Invoice Price | $57,096 |
| Delivery Charges | $895 |
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Analysis
What Problems Does the 2012 Infiniti M56 Have?
The 2012 Infiniti M56 generally enjoys a reputation for solid reliability, largely inheriting the robust engineering from its predecessor. However, like any vehicle, there are a few areas that owners and mechanics have noted. A frequently reported issue involves the infotainment system, particularly the navigation unit. Some owners have experienced glitches, freezing, or failure of the screen or its functions. This can be costly to repair if it requires a full unit replacement.
Another area of concern for some models can be related to the electronic throttle control system. While not widespread, instances of the throttle body malfunctioning have been reported, leading to issues with acceleration or engine performance. Regular maintenance, including keeping the throttle body clean, can sometimes mitigate these problems.
The climate control system has also seen occasional complaints, with issues like the blower motor failing or problems with the temperature blend doors causing uneven cooling or heating.
Regarding recalls, for the 2012 Infiniti M56, there have been a few notable ones. One significant recall involved the fuel pump, where a faulty pump could lead to engine stalling. Another recall pertained to the brake light switch, which could prevent the brake lights from illuminating.
Long-term reliability is generally good, especially if the vehicle has been meticulously maintained with regular oil changes, fluid flushes, and other scheduled maintenance. The powerful V8 engine and robust drivetrain are typically durable. However, as the vehicle ages, owners might face wear-and-tear items such as suspension components, brake pads, and tires. The advanced electronics and luxury features, while desirable, can also become sources of repair costs down the line if they fail.
Owners who maintain detailed service records and address any minor issues promptly tend to experience fewer major problems. It's always recommended to check for any outstanding recalls and ensure they have been addressed by a qualified Infiniti dealer.
Another area of concern for some models can be related to the electronic throttle control system. While not widespread, instances of the throttle body malfunctioning have been reported, leading to issues with acceleration or engine performance. Regular maintenance, including keeping the throttle body clean, can sometimes mitigate these problems.
The climate control system has also seen occasional complaints, with issues like the blower motor failing or problems with the temperature blend doors causing uneven cooling or heating.
Regarding recalls, for the 2012 Infiniti M56, there have been a few notable ones. One significant recall involved the fuel pump, where a faulty pump could lead to engine stalling. Another recall pertained to the brake light switch, which could prevent the brake lights from illuminating.
Long-term reliability is generally good, especially if the vehicle has been meticulously maintained with regular oil changes, fluid flushes, and other scheduled maintenance. The powerful V8 engine and robust drivetrain are typically durable. However, as the vehicle ages, owners might face wear-and-tear items such as suspension components, brake pads, and tires. The advanced electronics and luxury features, while desirable, can also become sources of repair costs down the line if they fail.
Owners who maintain detailed service records and address any minor issues promptly tend to experience fewer major problems. It's always recommended to check for any outstanding recalls and ensure they have been addressed by a qualified Infiniti dealer.
How long will the 2012 Infiniti M56 last?
Based on owner data and common usage patterns for luxury sedans, the 2012 Infiniti M56 can realistically be expected to last between 150,000 to 200,000 miles or even more with diligent maintenance. Many owners report achieving well over 100,000 miles without major mechanical failures, attesting to its underlying durability. The V8 engine and transmission are known for their robustness. However, long-term ownership will likely involve addressing wear-and-tear items on suspension and brakes. Electrical components and the infotainment system may become weaker points as the car ages, potentially requiring repairs. Consistent adherence to the recommended maintenance schedule is crucial for maximizing its lifespan and avoiding costly issues.
What Technology & Safety Features are Included?
The 2012 Infiniti M56 offered a sophisticated suite of technology and safety features for its time, balancing luxury with modern conveniences. Standard tech included a color display for the audio system, Bluetooth hands-free phone connectivity, and an iPod/USB interface. The premium audio system provided a rich sound experience. A key feature that made the M56 stand out was its available advanced driver-assistance systems and technology packages.
Optional technology highlights often included a highly capable navigation system, which was integrated with Infiniti Connection services for remote access and concierge features. The Bose premium audio system was a popular upgrade, offering exceptional sound quality. For enhanced parking and maneuvering, the Around View Monitor system provided a 360-degree bird's-eye view of the vehicle's surroundings, a significant aid in tight spaces.
Driver-assistance features were also a strong point. Available systems included Intelligent Cruise Control, which could automatically adjust speed to maintain a set distance from the vehicle ahead. Blind Spot Warning (BSW) and Blind Spot Intervention (BSI) systems helped alert the driver to vehicles in blind spots and could even apply gentle braking to help keep the car within its lane. Lane Departure Warning (LDW) and Lane Departure Prevention (LDP) were also offered, providing alerts and steering input if the vehicle began to drift out of its lane.
Safety was a priority, with standard features like multiple airbags, anti-lock brakes (ABS), electronic stability control (ESC), and traction control. The M56 was designed with a strong safety cage construction. In terms of crash-test ratings, the 2012 Infiniti M56 generally performed well. It received good ratings from the National Highway Traffic Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS) in various impact tests, earning it a reputation as a secure vehicle. Specific ratings may vary slightly by test and year, but it consistently demonstrated strong occupant protection.
Optional technology highlights often included a highly capable navigation system, which was integrated with Infiniti Connection services for remote access and concierge features. The Bose premium audio system was a popular upgrade, offering exceptional sound quality. For enhanced parking and maneuvering, the Around View Monitor system provided a 360-degree bird's-eye view of the vehicle's surroundings, a significant aid in tight spaces.
Driver-assistance features were also a strong point. Available systems included Intelligent Cruise Control, which could automatically adjust speed to maintain a set distance from the vehicle ahead. Blind Spot Warning (BSW) and Blind Spot Intervention (BSI) systems helped alert the driver to vehicles in blind spots and could even apply gentle braking to help keep the car within its lane. Lane Departure Warning (LDW) and Lane Departure Prevention (LDP) were also offered, providing alerts and steering input if the vehicle began to drift out of its lane.
Safety was a priority, with standard features like multiple airbags, anti-lock brakes (ABS), electronic stability control (ESC), and traction control. The M56 was designed with a strong safety cage construction. In terms of crash-test ratings, the 2012 Infiniti M56 generally performed well. It received good ratings from the National Highway Traffic Safety Administration (NHTSA) and the Insurance Institute for Highway Safety (IIHS) in various impact tests, earning it a reputation as a secure vehicle. Specific ratings may vary slightly by test and year, but it consistently demonstrated strong occupant protection.
What Colors Options are Available?
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In the meantime, feel free to explore the other sections for more content.
2012 Infiniti M56 Prices and Market Value
When new, the 2012 Infiniti M56 had a starting MSRP typically in the range of $60,000 to $70,000, depending on options and the M56x all-wheel-drive variant. As a luxury sedan, it experienced significant depreciation in its first few years. Currently, on the used market, the 2012 M56 can be found in the $10,000 to $20,000 range, heavily influenced by mileage, condition, and trim level. Factors affecting its resale value include its V8 engine's fuel consumption, which can deter some buyers, and the availability of newer models with more advanced technology. However, well-maintained examples with lower mileage can still command a respectable price, offering good value for buyers seeking V8 power and luxury features at a fraction of the original cost.
2012 Infiniti M56 Cost of Ownership
Owning a 2012 Infiniti M56 is generally considered moderately costly. Insurance premiums will likely be higher than for a standard sedan due to its luxury classification and potent V8 engine. Fuel costs are a significant factor; the V8 engine is thirsty, with owners reporting average fuel economy well below 20 MPG, leading to substantial gasoline expenses. Maintenance costs are comparable to other luxury brands, with routine services like oil changes and tire rotations being standard, but specialized parts and labor can be pricier. Repairs, especially for the advanced electronics or powertrain components, can also be expensive. Overall, while offering luxury and performance, the M56 is not an economical vehicle to own and operate long-term.
2012 Infiniti M56 Fuel Efficiency
Fuel Type
Gasoline
Fuel Capacity
20.00 gallons
City Mileage
16 miles/gallon
Highway Mileage
23 miles/gallon
2012 Infiniti M56 Safety Rating
NHTSA
IIHS
2012 Infiniti M56 Warranty
Basic
Original warranty
48 months / 60,000 miles
Estimated remaining
Expired
Powertrain
Original warranty
72 months / 70,000 miles
Estimated remaining
Expired
Rust
Original warranty
84 months / unlimited miles
Estimated remaining
Expired
2012 Infiniti M56 Insurance
Insurance for a 2012 Infiniti M56 is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2012 Infiniti M56 Compare to Other Sedan?
The 2012 Infiniti M56 competed in a highly contested segment against established luxury players like the BMW 5 Series, Mercedes-Benz E-Class, Audi A6, Lexus GS, and Cadillac CTS. In terms of performance, the M56's 420-horsepower V8 was a significant advantage, often outperforming rivals that were typically equipped with smaller V6 engines or turbochargers. Its acceleration was brisk and engaging, appealing to those who prioritized power.
Feature-wise, the M56 was well-equipped, offering many of the luxury amenities expected in this class, such as leather, heated/ventilated seats, and advanced optional tech like adaptive cruise control and surround-view cameras. However, some rivals, particularly the German offerings, often had more intuitive infotainment systems and a broader range of cutting-edge driver-assistance technologies.
Reliability is where the M56 generally holds its own, often being perceived as more reliable than some European counterparts, though perhaps not quite reaching the bulletproof reputation of certain Lexus models. Recalls were present, but typically manageable. Maintenance costs, however, can be lower than for German luxury sedans.
Price-wise, the Infiniti M56 was often positioned as a value-oriented luxury option, offering more power and similar luxury features for a slightly lower price point than its primary German competitors when new. On the used market, this value proposition often continues, making it an attractive alternative for buyers seeking performance and luxury on a budget.
Alternatives:
Feature-wise, the M56 was well-equipped, offering many of the luxury amenities expected in this class, such as leather, heated/ventilated seats, and advanced optional tech like adaptive cruise control and surround-view cameras. However, some rivals, particularly the German offerings, often had more intuitive infotainment systems and a broader range of cutting-edge driver-assistance technologies.
Reliability is where the M56 generally holds its own, often being perceived as more reliable than some European counterparts, though perhaps not quite reaching the bulletproof reputation of certain Lexus models. Recalls were present, but typically manageable. Maintenance costs, however, can be lower than for German luxury sedans.
Price-wise, the Infiniti M56 was often positioned as a value-oriented luxury option, offering more power and similar luxury features for a slightly lower price point than its primary German competitors when new. On the used market, this value proposition often continues, making it an attractive alternative for buyers seeking performance and luxury on a budget.
Alternatives:
- Lexus GS 350/450h (2012-2015): Offers exceptional reliability, a refined interior, and a more comfortable ride. The GS 450h provides hybrid efficiency. Less outright power than the M56.
- BMW 535i/550i (2011-2016): The 550i offers comparable V8 power and superior driving dynamics and handling. The 535i offers strong performance with a turbocharged six-cylinder. Often more expensive to maintain.
- Mercedes-Benz E350/E550 (2010-2016): The E550 boasts a powerful V8 and luxurious comfort, rivaling the M56's performance. The E350 is smoother but less potent. Both can be pricier to maintain.
- Audi A6 3.0T/5.0T (2012-2018): Offers all-wheel-drive standard, sophisticated styling, and advanced technology. The V8 version is rare. Performance is strong with the 3.0T supercharged V6.
- Cadillac CTS (2011-2013): Especially in V-sport or V variants, offers impressive performance. The standard CTS is more affordable but less luxurious.
Final Verdict: Is the 2012 Infiniti M56 a Good Sedan?
The 2012 Infiniti M56 is an excellent choice for buyers seeking a powerful, luxurious sedan with a potent V8 engine without the typically higher price tag of its German rivals. It's ideal for those who value strong acceleration, a comfortable and well-appointed interior, and a sophisticated exterior design. The M56 is definitely worth considering on the used market, offering significant bang for your buck.
It is less ideal for budget-conscious buyers concerned about fuel economy or those who prioritize the absolute latest in infotainment technology. When purchasing, opt for a model with a documented maintenance history, paying close attention to any reported infotainment or throttle body issues. The M56x all-wheel-drive variant is a good option for those living in colder climates. A well-maintained used M56 represents a compelling value for a near-luxury V8 sedan.
It is less ideal for budget-conscious buyers concerned about fuel economy or those who prioritize the absolute latest in infotainment technology. When purchasing, opt for a model with a documented maintenance history, paying close attention to any reported infotainment or throttle body issues. The M56x all-wheel-drive variant is a good option for those living in colder climates. A well-maintained used M56 represents a compelling value for a near-luxury V8 sedan.
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.