Infiniti

Q70 (Y50)

2006-2010 · Midsize Sedan · 3 engines
Best Engine ⚠️ Caution (3.3)
572 NHTSA Complaints
0 Recalls
2 Fire Reports
22 Crash Reports
View all 2 generations of the Infiniti Q70 → 📋 Inspection checklist

Engine Reliability Ratings

VK45DE

4.5L 8-cyl
⚠️ Caution (3.3)
94 complaints 31.3 per year Gasoline
View details

Complaint Breakdown

engine
22
safety systems
22
steering
19
interior
15
electrical
10

Known Issues

Engine Issues (22 complaints)
Safety Systems Issues (22 complaints)
Steering Issues (19 complaints)

Same engine used in

Infiniti Q70 Unidentified Engine

⚠️ Caution (3.0)
93 complaints 18.6 per year
1 fire report
View details

Complaint Breakdown

steering
32
interior
21
safety systems
11
wheels tires
9
suspension
8

Known Issues

Steering Issues (32 complaints)
Interior Issues (21 complaints)
Safety Systems Issues (11 complaints)

VQ35DE

3.5L 6-cyl
⚠️ Caution (2.5)
384 complaints 118.7 per year Gasoline
1 fire report
View details
Show 1 additional engine variant with limited data
These engines appear in fewer than 10 owner complaints and aren't included in the main ratings above. Low counts can mean a genuinely clean record, but they can also reflect VIN-decode anomalies in NHTSA data. Treat as informational, not as a confident rating.

Vehicle-Level Issues

These issues affect the Infiniti Q70 regardless of engine variant.

Safety Systems Issues (141 complaints)
safety_systems serious
Steering Issues (132 complaints)
steering serious
Interior Issues (110 complaints)
interior serious
Engine Issues (51 complaints)
engine serious
Electrical System Issues (37 complaints)
electrical serious

Alternatives in Midsize Sedan

Frequently Asked Questions

What are the most common 2006-2010 Infiniti Q70 problems?

The 2006-2010 Infiniti Q70 has accumulated 572 NHTSA complaints. The most frequently reported problem areas are Safety Systems, Steering, Interior. As with any used vehicle, an inspection before buying and a vehicle history report are recommended.

Which Infiniti Q70 engine is most reliable?

The 2006-2010 Infiniti Q70 was offered with 4 engine options. Based on NHTSA complaint data, the 4.5L 8-cyl has the lowest complaint density and is considered the most reliable choice for buyers.

Is the 2006-2010 Infiniti Q70 a good used car?

The 2006-2010 Infiniti Q70 can be a sound used car depending on trim, mileage, and maintenance history. With 572 total NHTSA complaints on record, prospective buyers should review the known problem areas and check for open recalls before buying.

How many NHTSA complaints does the 2006-2010 Infiniti Q70 have?

The 2006-2010 Infiniti Q70 has 572 complaints filed with NHTSA as of our latest data pull. Complaint counts reflect owner-reported issues and do not necessarily indicate defects or safety risks on their own.

What recalls affect the 2006-2010 Infiniti Q70?

There are 0 NHTSA recalls affecting some 2006-2010 Infiniti Q70 vehicles. Recall status varies by VIN — check the NHTSA recall database at recalls.nhtsa.dot.gov with your specific VIN to confirm which campaigns apply.

What should I check before buying a used Infiniti Q70?

Before buying a used Infiniti Q70, verify all open recalls are completed via the NHTSA VIN lookup tool. Pay particular attention to Safety Systems, Steering, Interior, which are the most commonly reported problem areas. Request maintenance records, have an independent mechanic inspect the vehicle, and run a vehicle history report to check for prior accidents or title issues.

Does the Q70 have NHTSA crash test ratings?

NHTSA has not published crash test ratings for the 2006-2010 Infiniti Q70. Not all vehicles are tested each year. For the latest NHTSA safety information, visit nhtsa.gov/ratings.

Data from NHTSA federal complaints database. 572 complaints analyzed. Data confidence: high. Last updated: 2026-05-23.

© 2026 The Weekly Driver