# A/C refrigerant charge (NB1)

Canonical URL: https://miatatorque.com/spec/air-conditioning-refrigerant-charge-nb1/

Applicability: NB 1999–2000 (BP-4W) — 2000 applicability inferred from 1999 factory evidence within the owner-approved NB1 group.

Confidence: fsm

600 g / 21.2 oz

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "air-conditioning-refrigerant-charge-nb1",
  "name": "A/C refrigerant charge (NB1)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        1999,
        2000
      ],
      "engines": [
        "BP-4W"
      ],
      "note": "2000 applicability inferred from 1999 factory evidence within the owner-approved NB1 group."
    }
  ],
  "kind": "capacity",
  "capacity": {
    "g": [
      600,
      600
    ],
    "oz": [
      21.2,
      21.2
    ]
  },
  "procedure": {
    "notes": "Total charge based on the reduction from the original tank weight measured at step 13. The preliminary 300 g charge in step 17 is included in this total, not an additional charge. Refrigerant type is not established by this page."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1999",
      "page": "07–10–4",
      "as_printed": "600 g {21.2 oz}",
      "verified_years": [
        1999,
        1999
      ],
      "capacity": {
        "g": [
          600,
          600
        ],
        "oz": [
          21.2,
          21.2
        ]
      },
      "document": {
        "id": "fsm-1999",
        "tier": 1,
        "title": "1999 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NB",
            "years": [
              1999,
              2000
            ],
            "engines": [
              "BP-4W"
            ]
          }
        ],
        "url": "https://www.mellens.net/mazda/Mazda-Miata-1999-2001.pdf"
      }
    }
  ],
  "jobs": [],
  "system": "hvac",
  "component": "reaudit-1999",
  "componentName": "Additional 1999 factory specifications",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/air-conditioning-refrigerant-charge-nb1/"
}
```