2014 INFINITI QX70

The 2014 INFINITI QX70 is a mid-size luxury crossover SUV that offered a blend of sporty handling and upscale features. Most commonly equipped with a 3.7-liter V6 engine producing 325 horsepower and 267 lb-ft of torque, it also had an optional 5.0-liter V8 producing 390 horsepower and 369 lb-ft of torque. Both engines were paired with a 7-speed automatic transmission. Owners generally appreciate the QX70’s distinctive styling, agile handling, and comfortable interior. However, some common criticisms include its smaller cargo space compared to competitors, fuel economy, and somewhat dated technology.

Engine

3.7L V6

• Oil Consumption
  • Description/Symptoms: Some owners have reported excessive oil consumption, requiring frequent oil top-offs between scheduled oil changes. Visible blue smoke from the exhaust can also be an indicator.
  • Solution: The issue is likely caused by worn piston rings or valve stem seals. Replacement of these components is necessary.
  • Estimated Cost to Fix: $2,000 - $4,000+
  • Recalls: None Found
• Timing Chain Tensioner Failure
  • Description/Symptoms: Rattling noise upon startup, especially in colder weather. Can lead to more serious engine damage if left unaddressed.
  • Solution: Replace the timing chain tensioner, guides, and potentially the chain itself.
  • Estimated Cost to Fix: $1,000 - $2,000
  • Recalls: None Found

5.0L V8

• Valve Cover Gasket Leak
  • Description/Symptoms: Oil leak around the valve covers, often noticed as a burning smell or oil drips on the exhaust manifold.
  • Solution: Replacing the valve cover gaskets.
  • Estimated Cost to Fix: $500 - $1,000
  • Recalls: None Found

Transmission

7-Speed Automatic

• Torque Converter Issues
  • Description/Symptoms: Shuddering during low-speed acceleration, especially in lower gears. Can also present as harsh shifts.
  • Solution: Replacement of the torque converter is typically the only viable fix.
  • Estimated Cost to Fix: $2,000 - $3,500
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Erratic shifting, delayed engagement of gears, or slipping.
  • Solution: Replacement or rebuild of the valve body.
  • Estimated Cost to Fix: $800 - $2,000+
  • Recalls: None Found

Suspension

• Rear Air Suspension Failure (if equipped)
  • Description/Symptoms: Rear end sagging, uneven ride height, failure of the air compressor. Not all models had this feature.
  • Solution: Replacement of the air springs, air compressor, or both.
  • Estimated Cost to Fix: $800 - $2,000+ per component
  • Recalls: None Found
• Front Lower Control Arm Bushings
  • Description/Symptoms: Clunking noise from the front suspension when going over bumps, especially at lower speeds. Can also lead to uneven tire wear.
  • Solution: Replacement of the front lower control arm bushings, or the entire control arm assembly.
  • Estimated Cost to Fix: $300 - $800+ per side
  • Recalls: None Found

Electrical

• Navigation/Infotainment System Issues
  • Description/Symptoms: Freezing, slow response times, and complete system failures of the navigation and infotainment system.
  • Solution: Software updates, replacement of the head unit.
  • Estimated Cost to Fix: $200 - $1,500+ depending on the problem
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Battery draining overnight or within a short period of time.
  • Solution: Diagnose and repair parasitic draw. Common culprits include faulty door actuators, BCM issues, etc.
  • Estimated Cost to Fix: $100 - $500+ depending on the source of the drain.
  • Recalls: None Found

Exterior

• Automatic Tailgate Issues (if equipped)
  • Description/Symptoms: The automatic tailgate (if equipped) may become slow to open or close, or may stop working altogether.
  • Solution: Replacing the tailgate lift supports, motor, or associated sensors.
  • Estimated Cost to Fix: $300 - $1,000
  • Recalls: None Found

Interior

• Sunroof Issues
  • Description/Symptoms: Sunroof not opening or closing properly, getting stuck, or making excessive noise.
  • Solution: Cleaning and lubricating the sunroof tracks, replacing the sunroof motor, or repairing damaged components.
  • Estimated Cost to Fix: $100 - $800+ depending on the problem
  • Recalls: None Found

Summary

The 2014 INFINITI QX70 has some common issues that potential buyers should be aware of. Engine-related problems, such as oil consumption and timing chain issues, can be expensive to repair. Transmission issues, particularly torque converter problems, can also be costly. Suspension issues, like air suspension failure, are another area to inspect, especially on models equipped with that feature. Electrical glitches with the infotainment system can be annoying but are usually not as expensive to fix. Overall, while the QX70 offers a stylish and engaging driving experience, the potential for moderately expensive repairs should be factored into the ownership consideration.