2020 INFINITI QX70

Here’s a comprehensive breakdown of common issues and complaints for the 2020 INFINITI QX70, categorized by major components. The 2020 Infiniti QX70, also known as the FX37/FX50 in previous years, is a mid-size luxury SUV known for its sporty handling and distinctive styling. It comes standard with a 3.7-liter V6 engine producing 325 horsepower and 267 lb-ft of torque. There is also a 5.0-liter V8 engine outputting 390 horsepower and 369 lb-ft of torque. Both engines are paired with a 7-speed automatic transmission. Owners often praise the QX70 for its unique exterior design, responsive engine (especially the V8), and engaging driving experience. Criticisms generally focus on its limited cargo space, outdated interior compared to newer competitors, and fuel economy.

Engine

3.7L V6

• Oil Leaks
  • Description/Symptoms: Oil leaks are reported around the valve cover gaskets and timing chain cover. Symptoms include oil spots on the driveway, a burning oil smell, and low oil levels.
  • Solution: Replacing the valve cover gaskets and/or resealing the timing chain cover.
  • Estimated Cost to Fix: $300 - $1000+ (depending on the location and extent of the leak)
  • Recalls: None Found
• Catalytic Converter Failure
  • Description/Symptoms: Check engine light, decreased fuel economy, rattling sound from the exhaust system. This is often related to oil consumption issues that contaminate the catalytic converters.
  • Solution: Replacing the failed catalytic converter(s).
  • Estimated Cost to Fix: $1,000 - $2,500+
  • Recalls: None Found

5.0L V8

• Excessive Oil Consumption
  • Description/Symptoms: Rapidly decreasing oil levels, blue smoke from the exhaust, and potential engine damage if not addressed.
  • Solution: In some cases, piston ring replacement or engine rebuild may be required. More frequently, regular monitoring and topping off the oil.
  • Estimated Cost to Fix: $5,000+ (for major repairs)
  • Recalls: None Found
• Valve Cover Gasket Leaks
  • Description/Symptoms: Burning oil smell, oil drips on the exhaust manifold, visible oil leaks.
  • Solution: Replacing the valve cover gaskets.
  • Estimated Cost to Fix: $300 - $700+
  • Recalls: None Found

Transmission

7-Speed Automatic (Both Engine Options)

• Rough Shifting/Hesitation
  • Description/Symptoms: Harsh or delayed shifts, especially between certain gears. Sometimes accompanied by a “clunking” noise.
  • Solution: Some cases can be resolved with a transmission fluid flush and software update. More severe cases may require valve body replacement or transmission rebuild.
  • Estimated Cost to Fix: $200 (flush) - $4,000+ (rebuild)
  • Recalls: None Found
• Torque Converter Issues
  • Description/Symptoms: Shuddering at low speeds, especially during light acceleration. Can also cause stalling or difficulty shifting.
  • Solution: Torque converter replacement.
  • Estimated Cost to Fix: $1,000 - $2,500+
  • Recalls: None Found

Suspension

• Rear Air Suspension Issues (if equipped)
  • Description/Symptoms: Sagging rear end, compressor failure, ride height issues, warning lights on the dashboard.
  • Solution: Replacing the air struts, air compressor, or related components.
  • Estimated Cost to Fix: $800 - $2,000+ per strut
  • Recalls: None Found

Electrical

• Infotainment System Freezing/Crashing
  • Description/Symptoms: Infotainment screen freezing, system rebooting unexpectedly, unresponsive touch controls.
  • Solution: Software update or replacement of the infotainment unit.
  • Estimated Cost to Fix: $100 - $1,500+
  • Recalls: None Found
• Battery Drain
  • Description/Symptoms: Car battery draining quickly, requiring frequent jumps or replacements.
  • Solution: Identifying and fixing the source of the parasitic drain (e.g., faulty module, aftermarket accessory).
  • Estimated Cost to Fix: $100 - $500+
  • Recalls: None Found

Exterior

• Automatic Liftgate Malfunction
  • Description/Symptoms: Liftgate not opening or closing properly, making unusual noises, or stopping mid-cycle.
  • Solution: Replacing the liftgate struts, motor, or sensors.
  • Estimated Cost to Fix: $300 - $1,000+
  • Recalls: None Found

Interior

• Seat Heater Failure
  • Description/Symptoms: Seat heaters not working or only working intermittently.
  • Solution: Replacing the heating element or switch.
  • Estimated Cost to Fix: $200 - $500+ per seat
  • Recalls: None Found

Summary

The 2020 INFINITI QX70 can present owners with a range of issues. Engine problems, particularly oil consumption in the V8 models, are a significant concern due to the high potential repair costs. Transmission issues, while potentially addressable with fluid changes, can also escalate into expensive rebuilds. Suspension and electrical problems contribute to the overall ownership experience, and the repair costs can vary widely depending on the severity. While not every QX70 will experience all of these issues, potential buyers should be aware of these common problem areas and factor them into their purchasing decision.