diff --git a/src/ol/source/vectortile.js b/src/ol/source/vectortile.js
index 95f7e770df..e8a9283e83 100644
--- a/src/ol/source/vectortile.js
+++ b/src/ol/source/vectortile.js
@@ -96,6 +96,14 @@ ol.source.VectorTile.prototype.getOverlaps = function() {
   return this.overlaps_;
 };
 
+/**
+ * clear {@link ol.TileCache} and delete all source tiles
+ * @api
+ */
+ol.source.VectorTile.prototype.clear = function() {
+  this.tileCache.clear();
+  this.sourceTiles_ = {};
+};
 
 /**
  * @inheritDoc