diff --git a/cinder_tempest_plugin/api/volume/admin/test_consistencygroups.py b/cinder_tempest_plugin/api/volume/admin/test_consistencygroups.py
index 7dff494..42c78f1 100644
--- a/cinder_tempest_plugin/api/volume/admin/test_consistencygroups.py
+++ b/cinder_tempest_plugin/api/volume/admin/test_consistencygroups.py
@@ -28,9 +28,7 @@
 class ConsistencyGroupsV2Test(base.BaseVolumeAdminTest):
     @classmethod
     def setup_clients(cls):
-        cls._api_version = 2
         super(ConsistencyGroupsV2Test, cls).setup_clients()
-        cls.admin_volume_client = cls.os_admin.volumes_v2_client
 
         manager = cinder_clients.Manager(cls.os_admin)
         cls.consistencygroups_adm_client = manager.consistencygroups_adm_client
diff --git a/cinder_tempest_plugin/api/volume/admin/test_volume_backup.py b/cinder_tempest_plugin/api/volume/admin/test_volume_backup.py
index e5ded52..41cfc91 100644
--- a/cinder_tempest_plugin/api/volume/admin/test_volume_backup.py
+++ b/cinder_tempest_plugin/api/volume/admin/test_volume_backup.py
@@ -24,13 +24,6 @@
 
 class VolumesBackupsTest(base.BaseVolumeAdminTest):
     @classmethod
-    def setup_clients(cls):
-        super(VolumesBackupsTest, cls).setup_clients()
-        cls.admin_volume_client = cls.os_admin.volumes_client_latest
-        cls.backups_client = cls.os_primary.backups_client_latest
-        cls.volumes_client = cls.os_primary.volumes_client_latest
-
-    @classmethod
     def skip_checks(cls):
         super(VolumesBackupsTest, cls).skip_checks()
         if not CONF.volume_feature_enabled.backup:
diff --git a/cinder_tempest_plugin/api/volume/base.py b/cinder_tempest_plugin/api/volume/base.py
index 40bfb33..21da190 100644
--- a/cinder_tempest_plugin/api/volume/base.py
+++ b/cinder_tempest_plugin/api/volume/base.py
@@ -165,7 +165,7 @@
 
         cls.admin_volume_types_client = cls.os_admin.volume_types_client_latest
         cls.admin_backups_client = cls.os_admin.backups_client_latest
-        cls.admin_volumes_client = cls.os_admin.volumes_client_latest
+        cls.admin_volume_client = cls.os_admin.volumes_client_latest
 
     @classmethod
     def create_volume_type(cls, name=None, **kwargs):
@@ -188,12 +188,12 @@
         type_id = volume_type['id']
         type_name = volume_type['name']
 
-        volumes = cls.admin_volumes_client.list_volumes(
+        volumes = cls.admin_volume_client.list_volumes(
             detail=True, params={'all_tenants': 1})['volumes']
         for volume in [v for v in volumes if v['volume_type'] == type_name]:
             test_utils.call_and_ignore_notfound_exc(
-                cls.admin_volumes_client.delete_volume, volume['id'])
-            cls.admin_volumes_client.wait_for_resource_deletion(volume['id'])
+                cls.admin_volume_client.delete_volume, volume['id'])
+            cls.admin_volume_client.wait_for_resource_deletion(volume['id'])
 
         test_utils.call_and_ignore_notfound_exc(
             cls.admin_volume_types_client.delete_volume_type, type_id)
diff --git a/cinder_tempest_plugin/api/volume/test_volume_revert.py b/cinder_tempest_plugin/api/volume/test_volume_revert.py
index bf3d806..2c4d6bd 100644
--- a/cinder_tempest_plugin/api/volume/test_volume_revert.py
+++ b/cinder_tempest_plugin/api/volume/test_volume_revert.py
@@ -35,7 +35,6 @@
 
     @classmethod
     def setup_clients(cls):
-        cls._api_version = 3
         super(VolumeRevertTests, cls).setup_clients()
 
         manager = cinder_clients.Manager(cls.os_primary)