diff --git a/VectoCore/FileIO/Reader/Impl/DeclarationModeSimulationDataReader.cs b/VectoCore/FileIO/Reader/Impl/DeclarationModeSimulationDataReader.cs
index 79491e59b462351a00f6bd9fb575a856b8af779f..70ee243384341da95eea7935a56120244968aa04 100644
--- a/VectoCore/FileIO/Reader/Impl/DeclarationModeSimulationDataReader.cs
+++ b/VectoCore/FileIO/Reader/Impl/DeclarationModeSimulationDataReader.cs
@@ -169,5 +169,21 @@ namespace TUGraz.VectoCore.FileIO.Reader.Impl
 		{
 			get { return false; }
 		}
+
+		/// <summary>
+		/// Create gearboxdata instance directly from a file
+		/// </summary>
+		/// <param name="gearBoxFile"></param>
+		/// <param name="engineFile"></param>
+		/// <returns>GearboxData instance</returns>
+		public static GearboxData CreateGearboxDataFromFile(string gearBoxFile, string engineFile)
+		{
+			var reader = new DeclarationModeSimulationDataReader();
+			reader.ReadEngine(engineFile);
+			reader.ReadGearbox(gearBoxFile);
+			var dao = new DeclarationDataAdapter();
+			var engineData = dao.CreateEngineData(reader.Engine);
+			return dao.CreateGearboxData(reader.Gearbox, engineData);
+		}
 	}
 }
\ No newline at end of file
diff --git a/VectoCoreTest/Models/SimulationComponent/GearboxTest.cs b/VectoCoreTest/Models/SimulationComponent/GearboxTest.cs
index 7fa56432ad50849e5622c7998c4c9a2f9062b609..dc56cd1f22040dd2a028dd0b6b8bc9c5ac64c878 100644
--- a/VectoCoreTest/Models/SimulationComponent/GearboxTest.cs
+++ b/VectoCoreTest/Models/SimulationComponent/GearboxTest.cs
@@ -1,7 +1,9 @@
 using System;
 using Microsoft.VisualStudio.TestTools.UnitTesting;
+using TUGraz.VectoCore.Exceptions;
 using TUGraz.VectoCore.FileIO.Reader.Impl;
 using TUGraz.VectoCore.Models.Simulation.Impl;
+using TUGraz.VectoCore.Models.SimulationComponent;
 using TUGraz.VectoCore.Models.SimulationComponent.Impl;
 using TUGraz.VectoCore.Tests.Utils;
 using TUGraz.VectoCore.Utils;
@@ -12,6 +14,7 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponent
 	public class GearboxTest
 	{
 		protected string GearboxDataFile = @"TestData\Components\24t Coach.vgbx";
+		protected string EngineDataFile = @"TestData\Components\24t Coach.veng";
 
 		public TestContext TestContext { get; set; }
 
@@ -64,8 +67,9 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponent
 		[TestMethod]
 		public void Gearbox_Request()
 		{
+			
 			var container = new VehicleContainer();
-			var gearboxData = EngineeringModeSimulationDataReader.CreateGearboxDataFromFile(GearboxDataFile);
+			var gearboxData = DeclarationModeSimulationDataReader.CreateGearboxDataFromFile(GearboxDataFile, EngineDataFile);
 			var gearbox = new Gearbox(container, gearboxData);
 
 			var port = new MockTnOutPort();
@@ -109,5 +113,13 @@ namespace TUGraz.VectoCore.Tests.Models.SimulationComponent
 		{
 			Assert.Inconclusive();
 		}
+
+		[TestMethod]
+		public void Gearbox_LessThanTwoGearsException()
+		{
+			var wrongFile = @"TestData\Components\24t Coach LessThanTwoGears.vgbx";
+			AssertHelper.Exception<VectoSimulationException>(
+				() => DeclarationModeSimulationDataReader.CreateGearboxDataFromFile(wrongFile, EngineDataFile));
+		}
 	}
 }
\ No newline at end of file
diff --git a/VectoCoreTest/TestData/Components/24t Coach LessThanTwoGears.vgbx b/VectoCoreTest/TestData/Components/24t Coach LessThanTwoGears.vgbx
new file mode 100644
index 0000000000000000000000000000000000000000..7c2b10a9e383c5d4587ff39a00fc509541c1cd7d
--- /dev/null
+++ b/VectoCoreTest/TestData/Components/24t Coach LessThanTwoGears.vgbx	
@@ -0,0 +1,29 @@
+{
+  "Header": {
+    "CreatedBy": "Raphael Luz IVT TU-Graz (14fea510-e457-4bf6-860f-a9514dc327f1)",
+    "Date": "25.06.2015 11:23:31",
+    "AppVersion": "2.2 beta",
+    "FileVersion": 5
+  },
+  "Body": {
+    "SavedInDeclMode": false,
+    "ModelName": "Generic 24t Coach",
+    "Inertia": 0.0,
+    "TracInt": 1.0,
+    "Gears": [],
+    "TqReserve": 20.0,
+    "SkipGears": true,
+    "ShiftTime": 2,
+    "EaryShiftUp": true,
+    "StartTqReserve": 20.0,
+    "StartSpeed": 2.0,
+    "StartAcc": 0.6,
+    "GearboxType": "AMT",
+    "TorqueConverter": {
+      "Enabled": false,
+      "File": "<NOFILE>",
+      "RefRPM": 0.0,
+      "Inertia": 0.0
+    }
+  }
+}
\ No newline at end of file
diff --git a/VectoCoreTest/VectoCoreTest.csproj b/VectoCoreTest/VectoCoreTest.csproj
index 1a091779ad9a0b543ca98287da5a3e40644fe4e2..844a9ae52c6982f960575a82fe9641063dedfdeb 100644
--- a/VectoCoreTest/VectoCoreTest.csproj
+++ b/VectoCoreTest/VectoCoreTest.csproj
@@ -145,6 +145,9 @@
     <None Include="TestData\Components\12t Delivery Truck.vveh">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Include="TestData\Components\24t Coach LessThanTwoGears.vgbx">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
     <None Include="TestData\Components\24t Coach.vgbx">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>