2018 INFINITI QX70

2018 INFINITI QX70

The 2018 INFINITI QX70 is a midsize luxury SUV that comes equipped with a 3.7L V6 engine producing 325 horsepower and 267 lb-ft of torque, paired with a 7-speed automatic transmission. It offers a comfortable and spacious cabin, along with a host of premium features. However, like any vehicle, it has its share of reported issues.

Engine

• 3.7L V6
  • Oil Leaks: Leaks can occur from the valve covers or oil pan gasket, resulting in reduced oil levels and potential engine damage.
    • Solution: Replace faulty gaskets.
    • Estimated Cost to Fix: $500 - $1,000+
  • Timing Chain Tensioner Failure: The tensioner can fail, causing the timing chain to skip or break, leading to catastrophic engine damage.
    • Solution: Replace the timing chain tensioner and timing chain.
    • Estimated Cost to Fix: $2,000 - $3,000+
  • Excessive Piston Slap: Worn piston rings or damaged pistons can cause excessive piston slap, resulting in a loud knocking noise from the engine.
    • Solution: Recondition or replace the affected engine components.
    • Estimated Cost to Fix: $5,000 - $10,000+

Transmission

• 7-Speed Automatic
  • Harsh Shifting: Some vehicles may experience rough or delayed gear changes, especially during acceleration or deceleration.
    • Solution: Software updates, transmission fluid flush, or internal repairs.
    • Estimated Cost to Fix: $500 - $2,000+
  • Transmission Slippage: Loss of power or slipping gears during acceleration can indicate transmission slippage.
    • Solution: Overhaul or replacement of the transmission.
    • Estimated Cost to Fix: $2,500 - $5,000+
  • Transmission Fluid Leaks: Leaks can occur from the transmission pan gasket or other seals, leading to reduced fluid levels and potential transmission damage.
    • Solution: Replace faulty gaskets or seals.
    • Estimated Cost to Fix: $300 - $700+
    • Recalls: NHTSA Recall #19V392000

Suspension

• No Issues Found

Electrical

• Battery Drain: Some vehicles may experience excessive battery drain, resulting in a dead battery or starting problems. * Solution: Diagnose and repair electrical system issues, such as faulty sensors or parasitic draw. * Estimated Cost to Fix: $300 - $1,000+
• Electrical Malfunctions: Various electrical issues have been reported, including problems with the navigation system, climate control, and power windows. * Solution: Software updates or replacement of affected components. * Estimated Cost to Fix: $500 - $2,000+ * Recalls: NHTSA Recall #19V198000

Exterior

• Roof Rail Trim Corrosion: The roof rail trim may corrode, resulting in peeling or bubbling paint. * Solution: Replace the affected trim. * Estimated Cost to Fix: $500 - $1,000+
• Headlight Condensation: Moisture can accumulate inside the headlights, causing condensation and affecting visibility. * Solution: Replace the affected headlights. * Estimated Cost to Fix: $500 - $1,500+

Interior

• Sunroof Malfunctions: The sunroof may stick, leak, or malfunction, leading to water leaks or other issues. * Solution: Repair or replace the sunroof mechanism. * Estimated Cost to Fix: $500 - $2,000+
• Navigation System Freezing: The navigation system may experience freezing or other software issues. * Solution: Software updates or replacement of the navigation system. * Estimated Cost to Fix: $500 - $1,500+
• Climate Control Malfunctions: Various issues with the climate control system have been reported, including problems with the heating, ventilation, or air conditioning. * Solution: Diagnose and repair the affected components. * Estimated Cost to Fix: $300 - $1,000+

Summary

The 2018 INFINITI QX70 has received mixed reviews from owners. While it offers a comfortable and luxurious ride, it is not without its share of issues. The most severe and costly problems relate to the engine, including timing chain tensioner failure and excessive piston slap. Transmission issues, electrical malfunctions, and sunroof problems are also common. However, these issues vary in severity and frequency, and not all vehicles will experience all of them.