2018 INFINITI Q70L
2018 INFINITI Q70L
Overview
The 2018 INFINITI Q70L, a luxury sedan known for its comfortable ride and premium features, generally exhibits good reliability. As a model that has been in production for several years, most of its kinks have been worked out. However, like any vehicle, it is not immune to potential issues. This analysis focuses on documented technical reliability concerns beyond routine maintenance, examining common problem areas reported by owners and technicians. We will delve into specific engine and transmission options, as well as other key vehicle systems, to provide a comprehensive picture of its long-term dependability.
Engine
3.7L V6 (VQ37VHR)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
5.6L V8 (VK56VD)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Transmission
7-speed Automatic (JR710E/JR711E)
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Suspension
Standard Chassis
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Electrical
Infotainment System
Infotainment Glitches
- Symptoms: Occasional screen freezing, unresponsiveness, or Bluetooth connectivity issues.
- Solution: Software updates or system resets. In some cases, component replacement may be necessary.
- Cost: $100 - $800
Battery Drain
Premature Battery Failure
- Symptoms: Unexpected battery drain leading to starting issues, often linked to parasitic draw from electronic modules.
- Solution: Diagnosis of parasitic draw and repair of faulty modules or wiring. Battery replacement.
- Cost: $200 - $600
Exterior
Body Panels & Paint
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Lighting
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Interior
Upholstery & Trim
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
HVAC System
No Major Issues
- Symptoms: No widespread issues reported.
- Solution: No widespread issues reported.
- Cost: N/A
Summary Verdict
The 2018 INFINITI Q70L demonstrates a strong reliability record, particularly concerning its core powertrain components (3.7L V6 and 5.6L V8 engines, and the 7-speed automatic transmission), which are generally robust and free from widespread issues. The suspension and exterior/interior components also hold up well with typical usage. The primary areas where owners might encounter issues are within the electrical system, specifically related to infotainment glitches and occasional battery drain problems. These electrical concerns are not uncommon in modern luxury vehicles with complex electronic systems. Overall, the Q70L is a dependable choice, with most potential problems being manageable and not indicative of systemic failures.