Pre-purchase inspection checklist — 2018 Infiniti Q50
The 2018 Infiniti Q50 faces notable issues with its driveshaft, camera system, and fuel pump, leading to recalls. Engine problems are common among owner complaints, indicating potential risks with stalling or other malfunctions. Ensure thorough examination during inspection and test drives.
Known issues to inspect
Driveshaft may break
How to check: Inspect for unusual noises or vibration from driveline.
Backover camera may fail
How to check: Test backup camera functionality and clarity.
Fuel pump software causing stalls
How to check: Check for recalls and software updates.
Test-drive walkthrough
- 01
Cold start
What to check: Listen for unusual engine noises or vibrations.
Red flag: Loud knocking or persistent noise
- 02
Idle
What to check: Check for stable and smooth idling.
Red flag: Engine sputtering or uneven idle
- 03
Acceleration from stop
What to check: Observe for smooth power delivery.
Red flag: Hesitation or jerking on acceleration
- 04
City driving
What to check: Ensure camera displays when reversing.
Red flag: Backup camera is unresponsive
- 05
Highway speed
What to check: Test for steering stability and vibrations.
Red flag: Car veers or shakes while driving
Questions for the seller
Use this exact phrasing.
- Has the driveshaft been replaced?
- Were any recalls addressed?
- Are there service records available?
- Has the fuel pump software been updated?
- Any history of engine stalling?
Documents to request
Don't sign anything until you have these.
- Service history records
- Recall repair confirmations
- Title and registration
- Recent inspection reports
- Warranty information
Generated by gpt-4o on 6/12/2026. Grounded in the NHTSA recall corpus and owner-complaint patterns for the 2018 Infiniti Q50.