diff --git a/tests/components/rdw/snapshots/test_diagnostics.ambr b/tests/components/rdw/snapshots/test_diagnostics.ambr
new file mode 100644
index 00000000000..6da03b67245
--- /dev/null
+++ b/tests/components/rdw/snapshots/test_diagnostics.ambr
@@ -0,0 +1,30 @@
+# serializer version: 1
+# name: test_diagnostics
+  dict({
+    'apk_expiration': '2022-01-04',
+    'ascription_date': '2021-11-04',
+    'ascription_possible': True,
+    'brand': 'Skoda',
+    'energy_label': 'A',
+    'engine_capacity': 999,
+    'exported': False,
+    'first_admission': '2013-01-04',
+    'interior': 'hatchback',
+    'last_odometer_registration_year': 2021,
+    'liability_insured': False,
+    'license_plate': '11ZKZ3',
+    'list_price': 10697,
+    'mass_driveable': 940,
+    'mass_empty': 840,
+    'model': 'Citigo',
+    'number_of_cylinders': 3,
+    'number_of_doors': 0,
+    'number_of_seats': 4,
+    'number_of_wheelchair_seats': 0,
+    'number_of_wheels': 4,
+    'odometer_judgement': 'Logisch',
+    'pending_recall': False,
+    'taxi': None,
+    'vehicle_type': 'Personenauto',
+  })
+# ---
diff --git a/tests/components/rdw/test_diagnostics.py b/tests/components/rdw/test_diagnostics.py
index 0e21779ff37..28b7714fcce 100644
--- a/tests/components/rdw/test_diagnostics.py
+++ b/tests/components/rdw/test_diagnostics.py
@@ -1,4 +1,5 @@
 """Tests for the diagnostics data provided by the RDW integration."""
+from syrupy import SnapshotAssertion
 
 from homeassistant.core import HomeAssistant
 
@@ -11,34 +12,10 @@ async def test_diagnostics(
     hass: HomeAssistant,
     hass_client: ClientSessionGenerator,
     init_integration: MockConfigEntry,
+    snapshot: SnapshotAssertion,
 ) -> None:
     """Test diagnostics."""
-    assert await get_diagnostics_for_config_entry(
-        hass, hass_client, init_integration
-    ) == {
-        "apk_expiration": "2022-01-04",
-        "ascription_date": "2021-11-04",
-        "ascription_possible": True,
-        "brand": "Skoda",
-        "energy_label": "A",
-        "engine_capacity": 999,
-        "exported": False,
-        "interior": "hatchback",
-        "last_odometer_registration_year": 2021,
-        "liability_insured": False,
-        "license_plate": "11ZKZ3",
-        "list_price": 10697,
-        "first_admission": "2013-01-04",
-        "mass_empty": 840,
-        "mass_driveable": 940,
-        "model": "Citigo",
-        "number_of_cylinders": 3,
-        "number_of_doors": 0,
-        "number_of_seats": 4,
-        "number_of_wheelchair_seats": 0,
-        "number_of_wheels": 4,
-        "odometer_judgement": "Logisch",
-        "pending_recall": False,
-        "taxi": None,
-        "vehicle_type": "Personenauto",
-    }
+    assert (
+        await get_diagnostics_for_config_entry(hass, hass_client, init_integration)
+        == snapshot
+    )