2014 INFINITI QX80

2014 INFINITI QX80

Overview

The 2014 INFINITI QX80 is a full-size luxury SUV known for its powerful V8 engine and spacious interior, designed for comfortable family hauling and towing. While generally considered a robust vehicle, like any complex machine, it has specific areas where owners have reported issues. This analysis focuses on documented technical problems beyond routine maintenance, providing insights into potential reliability concerns for this model year. Understanding these common points of failure can help prospective buyers and current owners anticipate and address potential repair needs, ensuring the longevity and optimal performance of their QX80.

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Engine

5.6L V8 (VK56VD)

Oil Consumption

• Symptoms: Excessive oil burning, potentially leading to low oil levels and engine damage if not monitored.
• Solution: Diagnosis may involve checking PCV system, piston rings, or valve seals. Repair can be extensive.
• Cost: $500 - $2500+

Timing Chain Rattle

• Symptoms: Rattling noise from the front of the engine, especially on startup, indicating potential wear in the timing chain system.
• Solution: Replacement of timing chain, tensioners, and guides.
• Cost: $1000 - $2500+

Transmission

7-Speed Automatic (RE7R01A)

Harsh Shifting / Delayed Engagement

• Symptoms: Jerky gear changes, hesitation when shifting into drive or reverse.
• Solution: Transmission fluid and filter change, solenoid replacement, or in severe cases, transmission rebuild.
• Cost: $300 - $3000+

Suspension

Hydraulic Body Control System (HBMC)

Fluid Leaks

• Symptoms: Leaking hydraulic fluid from lines or actuators, potentially causing a loss of suspension control and a rougher ride.
• Solution: Replacement of leaking hoses, seals, or hydraulic pump.
• Cost: $400 - $1500+

Pump Failure

• Symptoms: Loss of active suspension function, vehicle may lean excessively.
• Solution: Replacement of the hydraulic body control system pump.
• Cost: $1000 - $2500+

Standard Chassis

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Electrical

Infotainment System

Screen Freezing / Malfunctions

• Symptoms: Touchscreen becomes unresponsive, navigation system errors, audio issues.
• Solution: Software updates, or replacement of the head unit.
• Cost: $200 - $1500+

Body Control Module (BCM)

Intermittent Electrical Gremlins

• Symptoms: Various non-critical electrical components failing intermittently (e.g., power locks, interior lights, sensors).
• Solution: Diagnosis and potential reprogramming or replacement of the BCM.
• Cost: $500 - $1200+

Exterior

Body Panels & Trim

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Lighting

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Interior

Leather Upholstery

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

Climate Control System

No widespread issues reported.

• Symptoms: N/A
• Solution: N/A
• Cost: Varies

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Summary Verdict

The 2014 INFINITI QX80 is a generally reliable large SUV, with its robust 5.6L V8 engine being a strong point. However, potential owners should be aware of a few common issues. Oil consumption and timing chain noise can occur with higher mileage engines, requiring attention. The 7-speed automatic transmission may exhibit harsh shifting. The advanced Hydraulic Body Control System (HBMC) can be prone to fluid leaks or pump failures, which can be costly to repair. Electrical issues, particularly with the infotainment system and Body Control Module, are also noted. While not overwhelmingly problematic, these areas represent the most frequent technical concerns reported for this model year, suggesting that thorough pre-purchase inspections and diligent maintenance are advisable.