diff --git a/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js b/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js
index 8d78abc97c..5333489a5a 100644
--- a/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js
+++ b/packages/combo-box/src/vaadin-combo-box-data-provider-mixin.js
@@ -110,7 +110,7 @@ export const ComboBoxDataProviderMixin = (superClass) =>
       this.__dataProviderInitialized = true;
 
       if (this.dataProvider) {
-        this.requestContentUpdate();
+        this.__synchronizeControllerState();
       }
     }
 
@@ -166,7 +166,7 @@ export const ComboBoxDataProviderMixin = (superClass) =>
       const { rootCache } = this.__dataProviderController;
       rootCache.items = [...rootCache.items];
 
-      this.requestContentUpdate();
+      this.__synchronizeControllerState();
 
       if (!this.opened && !this._isInputFocused()) {
         this._commitValue();
@@ -183,7 +183,7 @@ export const ComboBoxDataProviderMixin = (superClass) =>
 
       this.__dataProviderController.clearCache();
 
-      this.requestContentUpdate();
+      this.__synchronizeControllerState();
 
       if (this._shouldFetchData()) {
         this._forceNextRequest = false;
@@ -206,7 +206,7 @@ export const ComboBoxDataProviderMixin = (superClass) =>
         // The controller adds new placeholders to the cache through mutation,
         // so we need to create a new array to trigger filteredItems observers.
         rootCache.items = [...rootCache.items];
-        this.requestContentUpdate();
+        this.__synchronizeControllerState();
       }
     }
 
@@ -224,7 +224,7 @@ export const ComboBoxDataProviderMixin = (superClass) =>
         const { rootCache } = this.__dataProviderController;
         if (rootCache.items !== items) {
           rootCache.items = items;
-          this.requestContentUpdate();
+          this.__synchronizeControllerState();
         }
       }
     }
@@ -232,11 +232,11 @@ export const ComboBoxDataProviderMixin = (superClass) =>
     /**
      * Synchronizes the controller's state with the component, which can be
      * out of sync after the controller receives new data from the data provider
-     * or if the state in the controller is directly manupulated.
+     * or if the state in the controller is directly manipulated.
      *
-     * @override
+     * @private
      */
-    requestContentUpdate() {
+    __synchronizeControllerState() {
       // When the data provider isn't initialized, it means the content update was requested
       // by an observer before the `ready()` callback. In such cases, some properties
       // in the data provider controller might still be uninitialized, so it's not safe
@@ -248,8 +248,6 @@ export const ComboBoxDataProviderMixin = (superClass) =>
         this.filteredItems = rootCache.items;
         this.loading = this.__dataProviderController.isLoading();
       }
-
-      super.requestContentUpdate();
     }
 
     /** @private */