The 2015 Infiniti Q70L, a stretched variant of the Q70 sedan (formerly the M series), offered a premium mid-size luxury experience. Produced from 2011 to 2019 with a refresh in 2015, the Q70L boasted a sedan body style. Key trims included the 3.7 and 5.6 (later renamed 3.7 and 5.6, then 3.7 and 5.6 AWD). Its popularity stemmed from its spacious rear seating, potent V6 and V8 engine options, and Infiniti's signature blend of performance and luxury. New pricing ranged from approximately $51,000 to $65,000.
The Good
The 2015 Q70L excels with its powerful engine options and comfortable, well-appointed interior offering a luxurious ride. Its elegant design appeals to emotional buyers, while strong reliability and reasonable fuel economy for its class appeal to practical ones, making it a compelling choice for discerning drivers.
The Bad
When considering a 2015 Infiniti Q70L, potential buyers should be aware of its infotainment system's dated interface compared to newer rivals. Some owners have reported issues with the navigation system and a somewhat firm ride quality on rougher surfaces. Fuel economy, especially with the V8, is not a strong suit.
2015 Infiniti Q70L: Quick Overview
- Engine Options:
- 3.7L V6
- 5.6L V8
- Horsepower:
- 3.7L V6: 330 hp @ 7,000 rpm
- 5.6L V8: 420 hp @ 6,000 rpm
- Torque:
- 3.7L V6: 267 lb-ft @ 5,200 rpm
- 5.6L V8: 414 lb-ft @ 4,400 rpm
- Fuel Economy (EPA Estimated MPG):
- 3.7L RWD: 18 city / 26 highway
- 3.7L AWD: 17 city / 24 highway
- 5.6L RWD: 16 city / 24 highway
- 5.6L AWD: 16 city / 23 highway
- 0-60 Times (Approximate):
- 3.7L V6: Around 5.7 seconds
- 5.6L V8: Around 4.7 seconds
- Towing Capacity: The 2015 Infiniti Q70L is not designed or rated for towing.
- Trim-Level Features (General):
- Base/3.7: Leather upholstery, heated front seats, dual-zone automatic climate control, 8-way power-adjustable front seats, rearview camera, 7-inch color display, Bluetooth, USB/iPod interface, keyless entry and ignition, 18-inch alloy wheels.
- 5.6: Adds a more powerful V8 engine, larger brakes, and often includes premium features as standard.
- Optional Packages often included: Premium Package (navigation system, Bose premium audio, heated/ventilated front seats, power-adjustable steering wheel), Technology Package (adaptive cruise control, forward collision warning, blind-spot intervention, lane departure prevention), Deluxe Touring Package (premium leather, climate-controlled front seats, heated rear seats, rear-seat legrests).
- Q70L Specific: Extended wheelbase for significantly more rear legroom, enhancing passenger comfort.
2015 Infiniti Q70L Specifications
Vehicle Information
| Year | 2015 |
| Make | Infiniti |
| Model | Q70L |
| Trim | - |
| Style | - |
| Type | Sedan |
| Category | Mid-Size Car |
Manufacturing Details
| Made In | Japan |
| Manufacturing City | TOCHIGI PLANT, KAWACHI-GUN |
Dimensions
| Doors | 4-Door |
| Curb Weight | 4156 pounds |
| Gross Vehicle Weight Rating | 5192 pounds |
| Overall Height | - |
| Overall Length | - |
| Overall Width | - |
| Wheelbase Length | - |
| Standard Seating | - |
Engine & Performance
| Engine | V-6 |
| Engine Size | 3.7L |
| Engine Cylinders | 6 |
| Transmission | 7-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 7-Speed |
| Drivetrain | All-Wheel Drive |
Additional Features
| Anti-Brake System | - |
| Steering Type | - |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $53,500 |
| Invoice Price | $49,755 |
| Delivery Charges | $905 |
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What Problems Does the 2015 Infiniti Q70L Have?
The 2015 Infiniti Q70L, while generally considered reliable, does have some reported issues and areas to watch. One frequently cited concern revolves around the infotainment system, with some owners experiencing glitches with the navigation, touchscreen responsiveness, and audio system. This is more of an annoyance than a critical failure, but can be frustrating given the vehicle's luxury aspirations.
Another area some owners have noted is the suspension, particularly on models with the sport-tuned suspension. On rougher roads, it can feel a bit firm, leading to some complaints about ride comfort. While not a widespread failure, it's worth test driving over varied surfaces.
Electrical gremlins, though not common, can occasionally pop up, ranging from minor issues like malfunctioning interior lights to more significant ones like problems with sensors or the power steering system. Regular maintenance and addressing any early warning signs are crucial.
Regarding recalls for the 2015 model year, Infiniti issued several. One significant recall pertained to the occupant classification system (OCS) sensor, which could prevent airbags from deploying correctly in certain situations. Another recall addressed potential issues with the fuel pump, where it could fail and cause the engine to stall. It's essential for potential buyers to verify that any recalls have been addressed by a qualified mechanic.
In terms of long-term reliability, the powertrain, especially the V6 engine, is generally robust and durable if maintained properly. The V8, while powerful, can be thirstier and potentially more expensive to maintain over the very long haul. The extended wheelbase of the Q70L doesn't inherently introduce more reliability concerns than its standard counterpart, but more complex systems like the rear-seat climate controls or power-adjustable legrests could be potential points of failure over time if not cared for.
Another area some owners have noted is the suspension, particularly on models with the sport-tuned suspension. On rougher roads, it can feel a bit firm, leading to some complaints about ride comfort. While not a widespread failure, it's worth test driving over varied surfaces.
Electrical gremlins, though not common, can occasionally pop up, ranging from minor issues like malfunctioning interior lights to more significant ones like problems with sensors or the power steering system. Regular maintenance and addressing any early warning signs are crucial.
Regarding recalls for the 2015 model year, Infiniti issued several. One significant recall pertained to the occupant classification system (OCS) sensor, which could prevent airbags from deploying correctly in certain situations. Another recall addressed potential issues with the fuel pump, where it could fail and cause the engine to stall. It's essential for potential buyers to verify that any recalls have been addressed by a qualified mechanic.
In terms of long-term reliability, the powertrain, especially the V6 engine, is generally robust and durable if maintained properly. The V8, while powerful, can be thirstier and potentially more expensive to maintain over the very long haul. The extended wheelbase of the Q70L doesn't inherently introduce more reliability concerns than its standard counterpart, but more complex systems like the rear-seat climate controls or power-adjustable legrests could be potential points of failure over time if not cared for.
How long will the 2015 Infiniti Q70L last?
With diligent maintenance, a 2015 Infiniti Q70L can realistically achieve well over 200,000 miles. Many owners report reaching this milestone without major powertrain failures. Regular oil changes, fluid flushes, and timely attention to minor issues are key. The V6 engine, in particular, is known for its longevity. However, over time, components like suspension parts, catalytic converters, and the infotainment system may require attention or replacement, particularly after 150,000 miles. The extended wheelbase adds complexity, but doesn't typically reduce overall lifespan if systems are maintained. Weaknesses that might surface with age include the wear and tear on interior materials and the potential for aging electronic components.
What Technology & Safety Features are Included?
The 2015 Infiniti Q70L offered a respectable suite of technology, entertainment, and safety features for its era, though some systems feel dated by today's standards.
Built-in Tech and Entertainment: Standard features typically included a 7-inch color display, Bluetooth connectivity for hands-free calling and audio streaming, and an auxiliary audio input with a USB/iPod interface. A rearview camera was also standard, aiding in parking maneuvers. Optional upgrades significantly enhanced the experience. The available navigation system, powered by a DVD-based system, was a notable addition. For audiophiles, the optional Bose premium audio system, often with 10 or 16 speakers, delivered rich sound.
Driver-Assistance Features: The Q70L was available with a range of advanced driver-assistance systems, particularly through the optional Technology Package. These included Adaptive Cruise Control (ACC), which could maintain a set distance from the vehicle ahead; Forward Collision Warning (FCW) to alert the driver of potential impacts; Blind-Spot Intervention (BSI) and Blind Spot Warning (BSW) to alert and assist if a vehicle is in the blind spot; and Lane Departure Warning (LDW) and Lane Departure Prevention (LDP) to help keep the vehicle centered in its lane. Parking assist sensors (front and rear) were also commonly found.
Safety Features: Standard safety equipment included front airbags, front-side airbags, side-curtain airbags, and active head restraints. Anti-lock brakes (ABS), electronic brake-force distribution (EBD), and brake assist were also standard. Traction control and stability control systems helped manage the vehicle's dynamics.
Crash-Test Ratings: The 2015 Infiniti Q70 (including the L variant) performed well in crash tests conducted by the Insurance Institute for Highway Safety (IIHS). It earned the designation of a Top Safety Pick. The National Highway Traffic Safety Administration (NHTSA) also awarded it high marks, typically receiving 4 or 5 stars in various categories, indicating strong overall occupant protection.
Built-in Tech and Entertainment: Standard features typically included a 7-inch color display, Bluetooth connectivity for hands-free calling and audio streaming, and an auxiliary audio input with a USB/iPod interface. A rearview camera was also standard, aiding in parking maneuvers. Optional upgrades significantly enhanced the experience. The available navigation system, powered by a DVD-based system, was a notable addition. For audiophiles, the optional Bose premium audio system, often with 10 or 16 speakers, delivered rich sound.
Driver-Assistance Features: The Q70L was available with a range of advanced driver-assistance systems, particularly through the optional Technology Package. These included Adaptive Cruise Control (ACC), which could maintain a set distance from the vehicle ahead; Forward Collision Warning (FCW) to alert the driver of potential impacts; Blind-Spot Intervention (BSI) and Blind Spot Warning (BSW) to alert and assist if a vehicle is in the blind spot; and Lane Departure Warning (LDW) and Lane Departure Prevention (LDP) to help keep the vehicle centered in its lane. Parking assist sensors (front and rear) were also commonly found.
Safety Features: Standard safety equipment included front airbags, front-side airbags, side-curtain airbags, and active head restraints. Anti-lock brakes (ABS), electronic brake-force distribution (EBD), and brake assist were also standard. Traction control and stability control systems helped manage the vehicle's dynamics.
Crash-Test Ratings: The 2015 Infiniti Q70 (including the L variant) performed well in crash tests conducted by the Insurance Institute for Highway Safety (IIHS). It earned the designation of a Top Safety Pick. The National Highway Traffic Safety Administration (NHTSA) also awarded it high marks, typically receiving 4 or 5 stars in various categories, indicating strong overall occupant protection.
What Colors Options are Available?
Exterior Colors
Liquid Platinum
Hermosa Blue
Malbec Black
Black Obsidian
Glacier White
Majestic White
Midnight Garnet
Stone Gray
Interior Colors
Wheat
Graphite
Black
2015 Infiniti Q70L Prices and Market Value
When new, the 2015 Infiniti Q70L carried a Manufacturer's Suggested Retail Price (MSRP) ranging from approximately $51,000 for a base 3.7 RWD model to over $65,000 for a well-equipped 5.6 AWD version. Currently, used 2015 Infiniti Q70L models typically fall within the $15,000 to $25,000 range, depending heavily on mileage, condition, trim level, and options. The Q70L experienced a moderate to significant depreciation curve in its initial years, a common trait for luxury sedans. Factors affecting its resale value include its mileage, maintenance history, the presence of desirable optional packages (like technology and premium trims), and the overall condition of the interior and exterior. Models with lower mileage and a clean service record will command higher prices.
2015 Infiniti Q70L Cost of Ownership
Owning a 2015 Infiniti Q70L is generally considered moderately costly. Insurance premiums can be higher than average due to its luxury status and performance capabilities. Fuel costs, especially for the V8 engine, will be substantial, with the V6 being more economical but still not class-leading. Maintenance costs are typical for a luxury vehicle; expect higher prices for parts and labor at Infiniti dealerships compared to mainstream brands. Routine maintenance like oil changes and tire rotations are reasonable, but repairs to complex systems or the drivetrain can be expensive. Overall, it's a costlier vehicle to own than a comparable Japanese mainstream sedan but can be competitive within its luxury segment.
2015 Infiniti Q70L Fuel Efficiency
Fuel Type
Gasoline (Required)
Fuel Capacity
20 gallons
City Mileage
17 miles/gallon
Highway Mileage
24 miles/gallon
2015 Infiniti Q70L Safety Rating
IIHS
2015 Infiniti Q70L Recalls & Defects
Power Train:driveline:driveshaft
Recall date
2024-06-21
Recall no.
24v470000
Source
NHTSA
Summary
Nissan North America, Inc. (Infiniti) IS Recalling Certain 2011-2013 M56, 2012-2013 M35 Hybrid, 2014-2018 Q50, Q70 Hybrid, 2014-2019 Q70, and 2015-2019 Q70l Two-wheel Drive Vehicles. THE Driveshaft CAN Fatigue and Break.
Consequence
A Broken Driveshaft CAN Result IN A Loss OF Drive Power, or A Vehicle Roll Away When THE Vehicle IS IN Park Without THE Parking Brake Applied. Both Scenarios CAN Increase THE Risk OF A Crash.
Remedy
Dealers Will Replace THE Driveshaft, Free OF Charge. Owner Notification Letters Were Mailed August 13, 2024. Owners MAY Contact Infiniti's Customer Service AT 1-800-662-6200. Infiniti's Numbers FOR This Recall ARE R24a5 and R24a7.
Notes
Owners MAY Also Contact THE National Highway Traffic Safety Administration Vehicle Safety Hotline AT 1-888-327-4236 (Tty 1-800-424-9153), or GO TO Www.nhtsa.gov.
2015 Infiniti Q70L Warranty
Roadside
Original warranty
48 months / 60000 miles
Estimated remaining
Expired
Rust
Original warranty
84 months / unlimited miles
Estimated remaining
Expired
Basic
Original warranty
48 months / 60000 miles
Estimated remaining
Expired
Drivetrain
Original warranty
72 months / 70000 miles
Estimated remaining
Expired
Roadside
Original warranty
48 months / 60000 miles
Estimated remaining
Expired
Rust
Original warranty
84 months / unlimited miles
Estimated remaining
Expired
Basic
Original warranty
48 months / 60000 miles
Estimated remaining
Expired
Drivetrain
Original warranty
72 months / 70000 miles
Estimated remaining
Expired
2015 Infiniti Q70L Insurance
Insurance for a 2015 Infiniti Q70L is moderately priced, reflecting its status as a Sedan with strong safety ratings and
reasonable repair costs.
reasonable repair costs.
How Does the 2015 Infiniti Q70L Compare to Other Sedan?
The 2015 Infiniti Q70L competed in the premium mid-size sedan segment against strong contenders like the BMW 5 Series, Mercedes-Benz E-Class, and Lexus GS.
Performance: The Q70L offered potent V6 and V8 engine options, with the 5.6L V8 providing exhilarating acceleration that often surpassed its German rivals in raw power. The 3.7L V6 was also strong. However, its handling dynamics, while competent, didn't quite match the engaging sportiness of the BMW 5 Series or the refined ride of the Mercedes E-Class. The Lexus GS offered a more balanced approach.
Features: Infiniti typically packed its vehicles with a generous amount of standard and optional features. The Q70L's long wheelbase provided superior rear-seat legroom compared to many competitors, a significant advantage for passenger comfort. Its available technology, like blind-spot intervention and adaptive cruise control, was advanced for its time, though the infotainment interface felt less intuitive and modern than BMW's iDrive or Mercedes' COMAND.
Reliability: Infiniti generally boasts good reliability ratings, often on par with or exceeding Lexus. While the Q70L is mechanically sound, the German rivals, particularly BMW and Mercedes-Benz, can sometimes incur higher long-term repair costs and may be more prone to complex electrical issues.
Price: The Q70L often presented a compelling value proposition, frequently offering more power and rear-seat space for a similar or lower price than comparable German luxury sedans when new. On the used market, this value is amplified.
Alternatives:
Performance: The Q70L offered potent V6 and V8 engine options, with the 5.6L V8 providing exhilarating acceleration that often surpassed its German rivals in raw power. The 3.7L V6 was also strong. However, its handling dynamics, while competent, didn't quite match the engaging sportiness of the BMW 5 Series or the refined ride of the Mercedes E-Class. The Lexus GS offered a more balanced approach.
Features: Infiniti typically packed its vehicles with a generous amount of standard and optional features. The Q70L's long wheelbase provided superior rear-seat legroom compared to many competitors, a significant advantage for passenger comfort. Its available technology, like blind-spot intervention and adaptive cruise control, was advanced for its time, though the infotainment interface felt less intuitive and modern than BMW's iDrive or Mercedes' COMAND.
Reliability: Infiniti generally boasts good reliability ratings, often on par with or exceeding Lexus. While the Q70L is mechanically sound, the German rivals, particularly BMW and Mercedes-Benz, can sometimes incur higher long-term repair costs and may be more prone to complex electrical issues.
Price: The Q70L often presented a compelling value proposition, frequently offering more power and rear-seat space for a similar or lower price than comparable German luxury sedans when new. On the used market, this value is amplified.
Alternatives:
- Similar: The Lexus GS is a strong competitor, offering excellent reliability, a refined interior, and a balanced driving experience. The Acura RLX also provides significant rear-seat space and Honda's reputation for reliability, though its styling and performance may be less engaging for some.
- Better (depending on priorities): If ultimate driving dynamics are key, the BMW 5 Series remains a benchmark. For unparalleled luxury and comfort, the Mercedes-Benz E-Class is a top choice. For pure reliability and a serene cabin experience, the Lexus GS is hard to beat.
Final Verdict: Is the 2015 Infiniti Q70L a Good Sedan?
The 2015 Infiniti Q70L is ideal for buyers seeking a luxurious, powerful, and spacious mid-size sedan without the often higher price tag of its German counterparts. It is particularly well-suited for individuals who frequently chauffeur passengers, thanks to its significantly extended rear legroom.
It is certainly worth buying, especially on the used market, where it offers excellent value for money. For those prioritizing strong acceleration and passenger comfort over cutting-edge infotainment or razor-sharp handling, the Q70L is a compelling choice.
Buying used is highly recommended to avoid the steep initial depreciation. Focus on well-maintained examples, ideally with a documented service history. The 3.7L V6 engine offers a good balance of performance and efficiency, while the 5.6L V8 is for those who crave maximum power. Opting for trims with the Technology and Premium packages will enhance the ownership experience significantly. It's a great option for a comfortable, stylish, and potent daily driver or executive transport on a budget.
It is certainly worth buying, especially on the used market, where it offers excellent value for money. For those prioritizing strong acceleration and passenger comfort over cutting-edge infotainment or razor-sharp handling, the Q70L is a compelling choice.
Buying used is highly recommended to avoid the steep initial depreciation. Focus on well-maintained examples, ideally with a documented service history. The 3.7L V6 engine offers a good balance of performance and efficiency, while the 5.6L V8 is for those who crave maximum power. Opting for trims with the Technology and Premium packages will enhance the ownership experience significantly. It's a great option for a comfortable, stylish, and potent daily driver or executive transport on a budget.
Simon A
Simon is a contributor to VinCheck, where he provides articles and reviews on various automotive topics. His work focuses on delivering accurate and up-to-date information about used cars, helping readers make informed decisions.