2014 INFINITI Q70

The 2014 INFINITI Q70 is a mid-size luxury sedan that offers a blend of performance and comfort. The base engine is a 3.7-liter V6 producing 330 horsepower and 270 lb-ft of torque. An optional 5.6-liter V8 is also available, delivering 420 horsepower and 417 lb-ft of torque (416 hp and 414 lb-ft of torque on the AWD model). Both engines are paired with a 7-speed automatic transmission. What people appreciate about the Q70 is its luxurious interior, smooth ride, and powerful engine options. Some common criticisms include its dated infotainment system and less sporty handling compared to some competitors.

Engine

3.7L V6

• Timing Chain Issues
  • Description/Symptoms: Rattling noise upon startup, especially in colder weather. This can indicate a stretched or worn timing chain. In severe cases, it can lead to engine misfires or complete failure.
  • Solution: Replacement of the timing chain, tensioners, and guides.
  • Estimated Cost to Fix: $1500 - $3000+
  • Recalls: None Found

5.6L V8

• Valve Cover Gasket Leaks
  • Description/Symptoms: Oil leaks around the valve covers, leading to a burning oil smell. Visible oil accumulation on the engine block.
  • Solution: Replacement of the valve cover gaskets.
  • Estimated Cost to Fix: $500 - $1000+
  • Recalls: None Found

Transmission

7-Speed Automatic (Both Engine Options)

• Torque Converter Issues
  • Description/Symptoms: Shuddering or vibrations during acceleration, especially at lower speeds. Erratic shifting or difficulty engaging gears.
  • Solution: Replacement of the torque converter.
  • Estimated Cost to Fix: $1000 - $3000+
  • Recalls: None Found
• Valve Body Issues
  • Description/Symptoms: Harsh shifting, slipping between gears, or failure to shift at all. Transmission warning light illuminated.
  • Solution: Replacement or rebuild of the valve body.
  • Estimated Cost to Fix: $800 - $2000+
  • Recalls: None Found

Suspension

• Lower Control Arm Bushing Wear
  • Description/Symptoms: Clunking noise when going over bumps, especially at low speeds. Steering wander or instability.
  • Solution: Replacement of the lower control arm bushings, or the entire lower control arm assembly.
  • Estimated Cost to Fix: $300 - $800+ per side
  • Recalls: None Found

Electrical

• Battery Drain
  • Description/Symptoms: Frequent dead batteries, especially if the car sits for extended periods. Difficulty starting the engine.
  • Solution: Diagnosing and repairing the source of the parasitic drain (e.g., faulty sensor, aftermarket electronics). Replacement of the battery if necessary.
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found
• Navigation/Infotainment System Malfunctions
  • Description/Symptoms: Screen freezing, unresponsive buttons, GPS errors, or complete system failure.
  • Solution: Software update, or replacement of the infotainment unit.
  • Estimated Cost to Fix: $100 - $1500+
  • Recalls: None Found

Exterior

• Automatic Headlight Issues
  • Description/Symptoms: Headlights not turning on automatically when it is dark, or staying on during the day.
  • Solution: Replacing the auto headlight sensor or cleaning the windshield around the sensor.
  • Estimated Cost to Fix: $50 - $500+
  • Recalls: None Found

Interior

• Seat Heater Failure
  • Description/Symptoms: Seat heaters not working, or only working intermittently.
  • Solution: Replacement of the heating element or switch.
  • Estimated Cost to Fix: $200 - $600+ per seat
  • Recalls: None Found

Summary

The 2014 INFINITI Q70 has some common issues that prospective buyers should be aware of. Engine issues like timing chain problems on the V6 and valve cover leaks on the V8 can be costly to repair. Transmission problems, particularly with the torque converter and valve body, are also common. Suspension wear, electrical glitches, and seat heater failures round out the list of potential problems. While not all vehicles will experience these issues, being informed can help buyers negotiate a better price or budget for potential repairs. The severity of these issues ranges from minor inconveniences to major mechanical failures, with repair costs varying accordingly.