diff --git a/odoo/addons/base/module/module.py b/odoo/addons/base/module/module.py
index 1b93def194b..fde49e72885 100644
--- a/odoo/addons/base/module/module.py
+++ b/odoo/addons/base/module/module.py
@@ -342,7 +342,7 @@ class Module(models.Model):
             raise UserError(msg % (module_name, e.args[0]))
 
     @api.multi
-    def state_update(self, newstate, states_to_update, level=100):
+    def _state_update(self, newstate, states_to_update, level=100):
         if level < 1:
             raise UserError(_('Recursion error in modules dependencies !'))
 
@@ -361,7 +361,7 @@ class Module(models.Model):
                     update_mods += dep.depend_id
 
             # update dependency modules that require it, and determine demo for module
-            update_demo = update_mods.state_update(newstate, states_to_update, level=level-1)
+            update_demo = update_mods._state_update(newstate, states_to_update, level=level-1)
             module_demo = module.demo or update_demo or any(mod.demo for mod in ready_mods)
             demo = demo or module_demo
 
@@ -389,7 +389,7 @@ class Module(models.Model):
         modules = self
         while modules:
             # Mark the given modules and their dependencies to be installed.
-            modules.state_update('to install', ['uninstalled'])
+            modules._state_update('to install', ['uninstalled'])
 
             # Determine which auto-installable modules must be installed.
             modules = self.search(auto_domain).filtered(must_install)
@@ -807,9 +807,8 @@ class Module(models.Model):
             cat_id = modules.db.create_categories(self._cr, categs)
             self.write({'category_id': cat_id})
 
-    @assert_log_admin_access
     @api.multi
-    def update_translations(self, filter_lang=None):
+    def _update_translations(self, filter_lang=None):
         if not filter_lang:
             langs = self.env['res.lang'].search([('translatable', '=', True)])
             filter_lang = [lang.code for lang in langs]
@@ -819,7 +818,7 @@ class Module(models.Model):
         self.env['ir.translation'].load_module_terms(mod_names, filter_lang)
 
     @api.multi
-    def check(self):
+    def _check(self):
         for module in self:
             if not module.description:
                 _logger.warning('module %s: description is empty !', module.name)
diff --git a/odoo/addons/base/module/wizard/base_language_install.py b/odoo/addons/base/module/wizard/base_language_install.py
index 10fb90311fa..78eb3009372 100644
--- a/odoo/addons/base/module/wizard/base_language_install.py
+++ b/odoo/addons/base/module/wizard/base_language_install.py
@@ -22,7 +22,7 @@ class BaseLanguageInstall(models.TransientModel):
     def lang_install(self):
         self.ensure_one()
         mods = self.env['ir.module.module'].search([('state', '=', 'installed')])
-        mods.with_context(overwrite=self.overwrite).update_translations(self.lang)
+        mods.with_context(overwrite=self.overwrite)._update_translations(self.lang)
         self.state = 'done'
         return {
             'name': _('Language Pack'),
diff --git a/odoo/modules/loading.py b/odoo/modules/loading.py
index f8c65d40177..5952fa499b9 100644
--- a/odoo/modules/loading.py
+++ b/odoo/modules/loading.py
@@ -148,7 +148,7 @@ def load_module_graph(cr, graph, status=None, perform_checks=True, skip_modules=
             module = env['ir.module.module'].browse(module_id)
 
             if perform_checks:
-                module.check()
+                module._check()
 
             if package.state=='to upgrade':
                 # upgrading the module information
@@ -164,7 +164,7 @@ def load_module_graph(cr, graph, status=None, perform_checks=True, skip_modules=
 
             # Update translations for all installed languages
             overwrite = odoo.tools.config["overwrite_existing_translations"]
-            module.with_context(overwrite=overwrite).update_translations()
+            module.with_context(overwrite=overwrite)._update_translations()
 
             registry._init_modules.add(package.name)
 
diff --git a/odoo/service/db.py b/odoo/service/db.py
index 7f496556caf..f4acace4740 100644
--- a/odoo/service/db.py
+++ b/odoo/service/db.py
@@ -55,7 +55,7 @@ def _initialize_db(id, db_name, demo, lang, user_password, login='admin', countr
 
             if lang:
                 modules = env['ir.module.module'].search([('state', '=', 'installed')])
-                modules.update_translations(lang)
+                modules._update_translations(lang)
 
             if country_code:
                 countries = env['res.country'].search([('code', 'ilike', country_code)])