2018 Q50 Red Sport Low Coolant Warning - No Visible Leaks

ClearTheCode guidance (Infiniti · Engine & drivetrain)

Summary: For 2018 Q50 Red Sport Low Coolant Warning - No Visible Leaks, work through these steps on your 2016+ vehicle:

1. Confirm the symptom — note when it happens (cold start, highway, after fuel fill, etc.).
2. Scan codes — save all pending/stored DTCs; don't clear until you've recorded them.
3. Check TSBs & recalls — look up your VIN for open campaigns and known fixes.
4. Inspect the obvious — related fuses, connectors, fluid level, and recent repairs.
5. Test the common fix — follow model-specific service procedures; one change at a time.
6. Escalate if needed — burning smell, no brakes, overheating, or stalling in traffic → shop visit.

Owner reported: Hey everyone,

I've got a 2018 Infiniti Q50 Red Sport with about 60,000 miles on it. Lately, I've been getting the 'Low Engine Coolant' warning on my dash. I've checked the reservoir, and it's pretty much empty. However, I can't find any visible leaks on my garage floor or around the engine bay.

I've topped it off a couple of times, but the warning eventually comes back. Is this a common issue wi…

This is educational guidance, not a substitute for hands-on diagnosis.