← Mazda Miata NA (1990-1997) problems

Cooling parts crack with age and heat

Limited · Severity: Medium · Years: 1990-1997 (and NB)

Symptoms

Coolant leaks from the reservoir and hoses, especially in hot dry climates.

Cause

A year-by-year problem list says reservoirs and hoses crack in hot, dry climates (search excerpt only; page could not be fully read).

Fix (summary)

Replace aged hoses and reservoir proactively.

Sources

• Miata problems/maintenance by year — miatayear.com (editorial; read 2026-10-15; search excerpt only)

Summaries are in our own words. Not repair instructions; consult the factory service manual.