What are the most common problems with the 2018 Infiniti Q70?

The 2018 Infiniti Q70 is rated as average for reliability, with a significant recall focus on the driveshaft.

How many recalls does the 2018 Infiniti Q70 have?

The 2018 Infiniti Q70 currently has 7 recalls on file. Review the full recall report to see affected components and available remedies.

Is the 2018 Infiniti Q70 a good buy used?

Verdict: Proceed with caution. The 2018 Infiniti Q70 is rated as average for reliability, with a significant recall focus on the driveshaft. Verify that all 7 driveshaft recalls have been completed by a qualified technician. The 5.6L V8 engine provides strong performance but contributes to high fuel costs with a combined 19 MPG. NHTSA awarded 4 stars for frontal and rollover crash tests, but overall safety is not rated. Despite zero consumer complaints logged, the driveshaft recall activity suggests a component vulnerability. Always verify service history, open recalls, and maintenance records before purchasing.

What maintenance costs should I expect for the 2018 Infiniti Q70?

Refer to the maintenance cost guide for interval schedules, DIY difficulty ratings, and typical repair cost ranges for the 2018 Infiniti Q70.

2018 Infiniti Q70 Report

Known issues, recalls, running costs, and what to check before you buy.

Updated Jun 4, 2026Ethan Miller

Overall Score

Our Verdict

Proceed with caution

Key Takeaways

The 2018 Infiniti Q70 is rated as average for reliability, with a significant recall focus on the driveshaft.
Verify that all 7 driveshaft recalls have been completed by a qualified technician.
The 5.6L V8 engine provides strong performance but contributes to high fuel costs with a combined 19 MPG.
NHTSA awarded 4 stars for frontal and rollover crash tests, but overall safety is not rated.

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Overview

2018 Infiniti Q70

The 2018 Infiniti Q70 presents a compelling package for those seeking a large, rear-wheel-drive luxury sedan with a potent V8 engine. While it boasts a comfortable interior and a smooth ride, potential buyers must be aware of its average reliability assessment. A notable concern is the significant recall activity centered on the driveshaft, indicating a potential systemic issue that, while addressed by manufacturers, requires verification of completion and a thorough inspection. This model offers a blend of performance and luxury, but its ownership risks are amplified by its recall history and the potential for high fuel costs.

Critical Failure Risk

A critical safety recall addressed potential driveshaft fractures due to fatigue or design flaws. This issue could lead to loss of motive power or uncontrolled vehicle rotation.

Early detection can help you avoid a $1,000-$2,500 repair.

Open Maintenance Analysis →

Safety & Bulletins

Open Recalls7

Service Bulletins0

Full Recall History →

Owner Complaints

No primary complaint themes found.

Detailed Issue Breakdown →

Performance & Efficiency

Fuel Efficiency

Combined

MPG

City

MPG

Highway

MPG

Full Vehicle Specifications ↓

Reliability

Practicality

The score is mainly limited by high fuel consumption.

Buyer Fit

Who This Car Is For

Best for

Drivers prioritizing V8 power and a comfortable, quiet cabin.

+2 more buyer-fit notes in the full report

Avoid if

Budget-conscious buyers concerned about fuel expenses.

+2 more buyer-fit warnings in the full report

2018 Infiniti Q70 Reliability Analysis

Specs

Vehicle Specs

Fuel Type: Premium
Seating Capacity: 5
Transmission: Automatic (S7)
Drivetrain: Rear-Wheel Drive
Body Style: Sedan
EPA Combined MPG: 19

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Most Common Issues

1. Driveshaft Fracture

Most reported

Usage data observed

See all common issues in the maintenance guide

First Service Interval

- Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake Inspection

Est. shop cost: $100 - $200

5,000 mi

Unlock the full maintenance guide for every scheduled service interval and cost forecast.

Full pre-purchase inspection checklist

Complete maintenance schedule (4 service intervals)

Repair forecasts with mileage and cost context

Full buyer-fit guidance and who should avoid it

Full specs and trim-level context

7 recall campaign details & remedy notes

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FAQ

Is the 2018 Infiniti Q70 reliable?

The CarFocal Reliability Score for the 2018 Infiniti Q70 is 8.9/10. Reliability score is 8.9/10. NHTSA recalls: 7. Owner complaints: 0.

How practical is the 2018 Infiniti Q70 for daily use?

Practicality score is 4.8/10. The score is mainly limited by high fuel consumption. EPA combined economy is 19 MPG. Seating capacity is 5. 4 passenger doors are listed. Boot capacity is 422 litres.

What is the overall score for the 2018 Infiniti Q70?

The CarFocal Overall Score for the 2018 Infiniti Q70 is 6.4/10. Overall score is 6.4/10 (Mixed). Confidence 55%. Maintenance 7.9/10. Practicality 4.8/10.

What does it cost to own and maintain a 2018 Infiniti Q70?

Based on Carfocal's data, First listed service: - Oil Change (5W-30 Synthetic) (Parts: 5W-30 Synthetic Oil, Oil Filter) - Tire Rotation and Inspection - Brake Inspection at 5,000 miles. Estimated first-year maintenance: $400 - $800. Repair prediction highlight: Driveshaft (typical at 75,000 miles, estimated cost Min: $1,000 • Max: $2,500).

What is the MSRP range for the 2018 Infiniti Q70?

Base MSRP is $56,400.

What engine is in the 2018 Infiniti Q70?

Engine specs list 8 • 5.6.

What transmission does the 2018 Infiniti Q70 use?

According to CarFocal's specs for the 2018 Infiniti Q70, transmission is Automatic (S7). The paired drivetrain is Rear-Wheel Drive.

Does the 2018 Q70 require Premium gas?

Manufacturer fuel recommendation: Premium.

What is the combined EPA MPG for the 2018 Infiniti Q70?

EPA combined estimate is 19 MPG.

What driver assistance and safety features are available on the 2018 Infiniti Q70?

6 standard and 6 optional driver assistance features. Key features include Anti-lock Braking System, Electronic Stability Control, Traction Control.

How many people fit in a 2018 Infiniti Q70?

According to CarFocal's specs for the 2018 Infiniti Q70, seating capacity is 5.

What body style is the 2018 Infiniti Q70?

According to CarFocal's specs for the 2018 Infiniti Q70, body style is sedan.

What drivetrain does the 2018 Infiniti Q70 use?

According to CarFocal's specs for the 2018 Infiniti Q70, drivetrain is Rear-Wheel Drive. Transmission is Automatic (S7).

What are the NHTSA safety ratings for the 2018 Infiniti Q70?

NHTSA ratings: Frontal 4/5 • Rollover 4/5.

Are there open safety recalls on the 2018 Infiniti Q70?

This model year has 7 official safety campaigns listed.