2014-2019 Infiniti Q70 Problems: 1 Issues Every Owner Should Know

2014-2019 model years · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated April 2026

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2014-2019 Infiniti Q70 has 1 documented known issues, with 1 rated critical. The most serious is Timing Chain Tensioner Failure ($1,500-$3,500 repair). Across all issues, repair costs range from $1,500 to $3,500. DIY maintenance guides at au7o.io.

All 1 Known Issues

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On the 2014-2019 Infiniti Q70 3.7L VQ37VHR V6, the VQ37VHR and VQ35HR engines in the M/Q70 series develop timing chain tensioner wear, leading to chain rattle on startup and potential chain skip. The hydraulic tensioners lose their ability to maintain proper chain tension as the internal check valve wears.

This issue also affects: Audi A4, Audi A5, Audi A6

Common Symptoms

Chain rattle on cold start lasting 1-3 seconds
Check engine light with cam timing codes
Rough idle after extended parking

How to Fix

Replace the primary timing chain tensioners and inspect the chains and guides. Use updated tensioner part numbers that feature improved check valve design. This repair requires removing the front timing cover.

Typical repair cost:$1,500 - $3,500

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Frequently Asked Questions

What are the most common Infiniti Q70 problems?

According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2014-2019 Infiniti Q70 has 1 documented issues. The most frequently reported are: Timing Chain Tensioner Failure. Of these, 1 is rated critical and should be addressed promptly.

Is the Infiniti Q70 reliable?

The 2014-2019 Infiniti Q70 has 1 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 1 issue is rated critical: Timing Chain Tensioner Failure. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common Infiniti Q70 problems?

Repair costs for known Infiniti Q70 issues range from $1,500 to $3,500, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, Timing Chain Tensioner Failure, typically costs $1,500-$3,500 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year Infiniti Q70 is the most reliable?

Reliability varies across model years of the Infiniti Q70. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2014-2019 Infiniti Q70 with 1 documented issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports.

What is the 2014-2019 Infiniti Q70 Timing Chain Tensioner Failure?

The VQ37VHR and VQ35HR engines in the M/Q70 series develop timing chain tensioner wear, leading to chain rattle on startup and potential chain skip. The hydraulic tensioners lose their ability to maintain proper chain tension as the internal check valve wears. Repairs typically run $1,500-$3,500. Severity: high.