diff --git a/django_mongodb/expressions.py b/django_mongodb/expressions.py
index d175a132a..7af3d71eb 100644
--- a/django_mongodb/expressions.py
+++ b/django_mongodb/expressions.py
@@ -13,6 +13,7 @@
     F,
     NegatedExpression,
     OrderBy,
+    RawSQL,
     Ref,
     ResolvedOuterRef,
     Star,
@@ -82,6 +83,10 @@ def query(self, compiler, connection):  # noqa: ARG001
     raise NotSupportedError("Using a QuerySet in annotate() is not supported on MongoDB.")
 
 
+def raw_sql(self, compiler, connection):  # noqa: ARG001
+    raise NotSupportedError("RawSQL is not supported on MongoDB.")
+
+
 def ref(self, compiler, connection):  # noqa: ARG001
     prefix = (
         f"{self.source.alias}."
@@ -130,6 +135,7 @@ def register_expressions():
     NegatedExpression.as_mql = negated_expression
     OrderBy.as_mql = order_by
     Query.as_mql = query
+    RawSQL.as_mql = raw_sql
     Ref.as_mql = ref
     ResolvedOuterRef.as_mql = ResolvedOuterRef.as_sql
     Star.as_mql = star
diff --git a/django_mongodb/features.py b/django_mongodb/features.py
index 72e8b2706..4667b2637 100644
--- a/django_mongodb/features.py
+++ b/django_mongodb/features.py
@@ -68,15 +68,6 @@ class DatabaseFeatures(BaseDatabaseFeatures):
         "aggregation.tests.AggregateTestCase.test_reverse_fkey_annotate",
         "aggregation_regress.tests.AggregationTests.test_annotation_disjunction",
         "aggregation_regress.tests.AggregationTests.test_decimal_aggregate_annotation_filter",
-        # QuerySet.extra(select=...) should raise NotSupportedError instead of:
-        # 'RawSQL' object has no attribute 'as_mql'.
-        "aggregation_regress.tests.AggregationTests.test_annotate_with_extra",
-        "aggregation_regress.tests.AggregationTests.test_annotation",
-        "aggregation_regress.tests.AggregationTests.test_more_more3",
-        "aggregation_regress.tests.AggregationTests.test_more_more_more3",
-        # QuerySet.extra(where=...) should raise NotSupportedError instead of:
-        # 'ExtraWhere' object has no attribute 'as_mql'.
-        "many_to_one.tests.ManyToOneTests.test_selects",
         # Incorrect JOIN with GenericRelation gives incorrect results.
         "aggregation_regress.tests.AggregationTests.test_aggregation_with_generic_reverse_relation",
         "generic_relations.tests.GenericRelationsTests.test_queries_content_type_restriction",
@@ -484,6 +475,7 @@ def django_test_expected_failures(self):
             "delete_regress.tests.Ticket19102Tests.test_ticket_19102_extra",
             "lookup.tests.LookupTests.test_values",
             "lookup.tests.LookupTests.test_values_list",
+            "many_to_one.tests.ManyToOneTests.test_selects",
             "ordering.tests.OrderingTests.test_extra_ordering",
             "ordering.tests.OrderingTests.test_extra_ordering_quoting",
             "ordering.tests.OrderingTests.test_extra_ordering_with_table_name",
@@ -519,6 +511,10 @@ def django_test_expected_failures(self):
         },
         "Test executes raw SQL.": {
             "aggregation.tests.AggregateTestCase.test_coalesced_empty_result_set",
+            "aggregation_regress.tests.AggregationTests.test_annotate_with_extra",
+            "aggregation_regress.tests.AggregationTests.test_annotation",
+            "aggregation_regress.tests.AggregationTests.test_more_more3",
+            "aggregation_regress.tests.AggregationTests.test_more_more_more3",
             "annotations.tests.NonAggregateAnnotationTestCase.test_raw_sql_with_inherited_field",
             "backends.base.test_base.ExecuteWrapperTests",
             "backends.tests.BackendTestCase.test_cursor_contextmanager",
diff --git a/django_mongodb/query.py b/django_mongodb/query.py
index 25d857bc1..df2d0d19c 100644
--- a/django_mongodb/query.py
+++ b/django_mongodb/query.py
@@ -2,13 +2,13 @@
 from operator import add as add_operator
 
 from django.core.exceptions import EmptyResultSet, FullResultSet
-from django.db import DatabaseError, IntegrityError
+from django.db import DatabaseError, IntegrityError, NotSupportedError
 from django.db.models.expressions import Case, When
 from django.db.models.functions import Mod
 from django.db.models.lookups import Exact
 from django.db.models.sql.constants import INNER
 from django.db.models.sql.datastructures import Join
-from django.db.models.sql.where import AND, OR, XOR, NothingNode, WhereNode
+from django.db.models.sql.where import AND, OR, XOR, ExtraWhere, NothingNode, WhereNode
 from pymongo.errors import DuplicateKeyError, PyMongoError
 
 
@@ -92,6 +92,10 @@ def get_pipeline(self):
         return pipeline
 
 
+def extra_where(self, compiler, connection):  # noqa: ARG001
+    raise NotSupportedError("QuerySet.extra() is not supported on MongoDB.")
+
+
 def join(self, compiler, connection):
     lookup_pipeline = []
     lhs_fields = []
@@ -232,6 +236,7 @@ def where_node(self, compiler, connection):
 
 
 def register_nodes():
+    ExtraWhere.as_mql = extra_where
     Join.as_mql = join
     NothingNode.as_mql = NothingNode.as_sql
     WhereNode.as_mql = where_node