diff --git a/Logging/Logger.cs b/Logging/Logger.cs
index 73e8e58..7f61613 100644
--- a/Logging/Logger.cs
+++ b/Logging/Logger.cs
@@ -4,31 +4,39 @@
     {
         private LogType logType;
         private string logfilepath;
-        public Logger(LogType type)
+        private loglevel level;
+        public Logger(LogType type, loglevel level)
         {
             this.logType = type;
             this.logfilepath = "";
+            this.level = level;
         }
 
-        public Logger(LogType type, string path)
+        public Logger(LogType type, loglevel level, string path)
         {
             this.logType = type;
             this.logfilepath = path;
+            this.level = level;
         }
 
-        public void log(string message, params object[] ?replace)
+        public void log(loglevel type, string message, params object[] ?replace)
         {
-            switch (this.logType)
+            if(type >= this.level)
             {
-                case LogType.Console:
-                    Console.WriteLine(string.Format(message, replace));
-                    break;
-                case LogType.Logfile:
-                    File.WriteAllText(this.logfilepath, string.Format(message, replace));
-                    break;
+                string header = string.Format("{0} {1} {2}:", DateTime.Now.ToLocalTime().ToShortDateString(), DateTime.Now.ToLocalTime().ToLongTimeString(), type.ToString());
+                switch (this.logType)
+                {
+                    case LogType.Console:
+                        Console.WriteLine(string.Format(header + message, replace));
+                        break;
+                    case LogType.Logfile:
+                        File.WriteAllText(this.logfilepath, string.Format(header + message, replace));
+                        break;
+                }
             }
         }
     }
 
     public enum LogType { Console, Logfile }
+    public enum loglevel : ushort { DEBUG = 0, INFO = 1, ERROR = 2 };
 }
diff --git a/astar/Astar.cs b/astar/Astar.cs
index 36c9ae4..5222650 100644
--- a/astar/Astar.cs
+++ b/astar/Astar.cs
@@ -8,7 +8,7 @@ namespace astar
         private Logger logger;
         public Astar()
         {
-            this.logger = new Logger(LogType.Console);
+            this.logger = new Logger(LogType.Console, loglevel.DEBUG);
             Importer.Import(logger);
         }
     }
diff --git a/astar/Importer.cs b/astar/Importer.cs
index e1a97fa..dfda644 100644
--- a/astar/Importer.cs
+++ b/astar/Importer.cs
@@ -34,7 +34,7 @@ namespace astar
                     if(currentNodeType == nodeType.WAY)
                     {
                         ImportWay(currentWay);
-                        logger.log("Way nodes: {0}", currentWay.nodes.Count);
+                        logger.log(loglevel.INFO, "Way nodes: {0}", currentWay.nodes.Count);
                     }
                     currentNodeType = nodeType.WAY;
                     currentNode = nullNode;
@@ -44,7 +44,7 @@ namespace astar
                     UInt64 id = Convert.ToUInt64(reader.GetAttribute("ref"));
                     if (!nodes.TryGetValue(id, out currentNode))
                     {
-                        logger.log("ERR: Node with id {0} not imported.", id);
+                        logger.log(loglevel.DEBUG, "Node with id {0} not imported.", id);
                     }
                     else
                     {
@@ -83,7 +83,7 @@ namespace astar
                 }
             }
 
-            logger.log("Loaded. Nodes: {0}", nodes.Count);
+            logger.log(loglevel.INFO, "Loaded. Nodes: {0}", nodes.Count);
         }
 
         internal static void ImportWay(Way way)