diff --git a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationComponentsDataProvider.cs b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationComponentsDataProvider.cs
index 620876b78baf8e9b75e068606ffc9bb15bc2b150..8d03b29efdb583aabee94748d5dea972981f0e80 100644
--- a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationComponentsDataProvider.cs
+++ b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationComponentsDataProvider.cs
@@ -190,7 +190,18 @@ namespace TUGraz.VectoCore.InputData.FileIO.XML.Declaration.DataProvider
 		
 		IAuxiliariesDeclarationInputData IVehicleComponentsDeclaration.AuxiliaryInputData => null;
 
-		public override IBusAuxiliariesDeclarationData BusAuxiliaries => _busAuxiliaries ?? (_busAuxiliaries = ComponentReader.BusAuxiliariesInputData);
+		#region Overrides of XMLDeclarationComponentsDataProviderV10
+
+		public override IAngledriveInputData AngledriveInputData =>
+			ElementExists(XMLNames.Component_Angledrive) ? base.AngledriveInputData : null;
+
+		public override IRetarderInputData RetarderInputData =>
+			ElementExists(XMLNames.Component_Retarder) ? base.RetarderInputData : null;
+
+		#endregion
+
+		public override IBusAuxiliariesDeclarationData BusAuxiliaries =>
+			_busAuxiliaries ?? (_busAuxiliaries = ComponentReader.BusAuxiliariesInputData);
 
 		protected override XNamespace SchemaNamespace => NAMESPACE_URI;
 	}
diff --git a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationVehicleDataProvider.cs b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationVehicleDataProvider.cs
index 6dc4919e6c0b9f923fee925c227932115509e8c9..fa4946c2f359175787b90e8f7c4edb1b12224b47 100644
--- a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationVehicleDataProvider.cs
+++ b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/DataProvider/XMLDeclarationVehicleDataProvider.cs
@@ -455,14 +455,10 @@ namespace TUGraz.VectoCore.InputData.FileIO.XML.Declaration.DataProvider
 
 		public override XmlElement PTONode => null;
 
-		#region Overrides of XMLDeclarationVehicleDataProviderV10
+		public override IPTOTransmissionInputData PTOTransmissionInputData => null;
 
 		public override LegislativeClass? LegislativeClass => VectoCommon.Models.LegislativeClass.M3;
 
-		#endregion
-
-		public override IPTOTransmissionInputData PTOTransmissionInputData => null;
-
 		public override VehicleCategory VehicleCategory => VehicleCategory.HeavyBusPrimaryVehicle;
 
 		public override bool Articulated => GetBool(XMLNames.Vehicle_Articulated);
@@ -473,6 +469,9 @@ namespace TUGraz.VectoCore.InputData.FileIO.XML.Declaration.DataProvider
 
 		public override Meter EntranceHeight => null;
 
+		public override IList<ITorqueLimitInputData> TorqueLimits =>
+			ElementExists(XMLNames.Vehicle_TorqueLimits) ? base.TorqueLimits : null;
+
 		#endregion
 
 		#region Overrides of AbstractXMLResource
diff --git a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/Reader/Impl/XMLComponentReader.cs b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/Reader/Impl/XMLComponentReader.cs
index 0800f0a56321eb4cb418d5b798bc8a267c61d405..37165096ab145861e83a5b86ac9182f5a8bb09ad 100644
--- a/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/Reader/Impl/XMLComponentReader.cs
+++ b/VectoCore/VectoCore/InputData/FileIO/XML/Declaration/Reader/Impl/XMLComponentReader.cs
@@ -442,6 +442,7 @@ namespace TUGraz.VectoCore.InputData.FileIO.XML.Declaration.Reader.Impl
 			return Factory.CreateAirdragData(version, Vehicle, componentNode, sourceFile);
 		}
 
+		public override IIEPCDeclarationInputData IEPCInputData => null;
 
 		#endregion
 
diff --git a/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.10/WithoutOptionalEntries/Conventional_primaryBus_AMT_n_opt.xml b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.10/WithoutOptionalEntries/Conventional_primaryBus_AMT_n_opt.xml
new file mode 100644
index 0000000000000000000000000000000000000000..a85c7420bdfb2a718eb4fff181b08b49dcc9898b
--- /dev/null
+++ b/VectoCore/VectoCoreTest/TestData/XML/XMLReaderDeclaration/SchemaVersion2.10/WithoutOptionalEntries/Conventional_primaryBus_AMT_n_opt.xml
@@ -0,0 +1,275 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<tns:VectoInputDeclaration schemaVersion="2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.10.2" xmlns:tns="urn:tugraz:ivt:VectoAPI:DeclarationInput:v2.0" xmlns:v1.0="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v1.0" xmlns:v2.0="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v2.0" xmlns:v2.1="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v2.1" xmlns:v2.10.1="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.10.1" xmlns:v2.10.2="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:DEV:v2.10.2" xmlns:di="http://www.w3.org/2000/09/xmldsig#" xsi:schemaLocation="urn:tugraz:ivt:VectoAPI:DeclarationJob V:\VectoCore\VectoCore\Resources\XSD/VectoDeclarationJob.xsd">
+	<v2.0:Vehicle id="VEH-1234567890" xsi:type="Vehicle_Conventional_PrimaryBusDeclarationType">
+		<Manufacturer>Generic Truck Manufacturer</Manufacturer>
+		<ManufacturerAddress>Street, ZIP City</ManufacturerAddress>
+		<Model>Generic Model</Model>
+		<VIN>VEH-1234567890</VIN>
+		<Date>2017-02-15T11:00:00Z</Date>
+		<LegislativeCategory>M3</LegislativeCategory>
+		<ChassisConfiguration>Bus</ChassisConfiguration>
+		<AxleConfiguration>4x2</AxleConfiguration>
+		<Articulated>false</Articulated>
+		<TechnicalPermissibleMaximumLadenMass>25000</TechnicalPermissibleMaximumLadenMass>
+		<IdlingSpeed>600</IdlingSpeed>
+		<RetarderType>Transmission Output Retarder</RetarderType>
+		<RetarderRatio>1.000</RetarderRatio>
+		<AngledriveType>None</AngledriveType>
+		<ZeroEmissionVehicle>false</ZeroEmissionVehicle>
+		<ADAS xsi:type="ADAS_Conventional_Type">
+			<EngineStopStart>false</EngineStopStart>
+			<EcoRollWithoutEngineStop>false</EcoRollWithoutEngineStop>
+			<EcoRollWithEngineStop>false</EcoRollWithEngineStop>
+			<PredictiveCruiseControl>none</PredictiveCruiseControl>
+		</ADAS>
+		<Components xsi:type="Components_Conventional_PrimaryBusType">
+			<Engine xsi:type="v2.0:EngineComponentDeclarationType">
+				<v2.0:Data xsi:type="v1.0:EngineDataDeclarationType" id="ENG-gooZah3D" xmlns="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v1.0">
+					<Manufacturer>Generic Engine Manufacturer</Manufacturer>
+					<Model>Generic 40t Long Haul Truck Engine</Model>
+					<CertificationNumber>e12*0815/8051*2017/05E0000*00</CertificationNumber>
+					<Date>2017-02-15T11:00:00Z</Date>
+					<AppVersion>VectoEngine x.y</AppVersion>
+					<Displacement>12730</Displacement>
+					<IdlingSpeed>560</IdlingSpeed>
+					<RatedSpeed>2200</RatedSpeed>
+					<RatedPower>380000</RatedPower>
+					<MaxEngineTorque>2300</MaxEngineTorque>
+					<WHTCUrban>1.0097</WHTCUrban>
+					<WHTCRural>1.0035</WHTCRural>
+					<WHTCMotorway>1.0200</WHTCMotorway>
+					<BFColdHot>1.0000</BFColdHot>
+					<CFRegPer>1.0000</CFRegPer>
+					<CFNCV>1.0000</CFNCV>
+					<FuelType>NG</FuelType>
+					<FuelConsumptionMap>
+						<Entry engineSpeed="560.00" torque="-149.00" fuelConsumption="0.00"/>
+						<Entry engineSpeed="560.00" torque="1180.00" fuelConsumption="12869.00"/>
+						<Entry engineSpeed="2100.00" torque="-320.00" fuelConsumption="0.00"/>
+						<Entry engineSpeed="2100.00" torque="1100.00" fuelConsumption="50653.00"/>
+					</FuelConsumptionMap>
+					<FullLoadAndDragCurve>
+						<Entry engineSpeed="560.00" maxTorque="1180.00" dragTorque="-149.00"/>
+						<Entry engineSpeed="1800.00" maxTorque="1800.00" dragTorque="-300.00"/>
+						<Entry engineSpeed="2100.00" maxTorque="1100.00" dragTorque="-320.00"/>
+					</FullLoadAndDragCurve>
+				</v2.0:Data>
+				<v2.0:Signature>
+					<di:Reference URI="#ENG-gooZah3D">
+						<di:Transforms>
+							<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+							<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+						</di:Transforms>
+						<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+						<di:DigestValue>sNtMe9udO39TyKXzgwYEpVKImWizFalaBVqq3jLktuo=</di:DigestValue>
+					</di:Reference>
+				</v2.0:Signature>
+			</Engine>
+			<Gearbox xsi:type="v2.0:GearboxComponentDeclarationType">
+				<v2.0:Data id="gbx-vi2Oak2N" xsi:type="v2.0:GearboxDataDeclarationType" xmlns="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v2.0">
+					<Manufacturer>Generic Gearbox Manufacturer</Manufacturer>
+					<Model>Generic 40t Long Haul Truck Gearbox</Model>
+					<CertificationNumber>e12*0815/8051*2017/05E0000*00</CertificationNumber>
+					<Date>2017-01-11T11:00:00Z</Date>
+					<AppVersion>3.0.1</AppVersion>
+					<TransmissionType>AMT</TransmissionType>
+					<MainCertificationMethod>Standard values</MainCertificationMethod>
+					<Gears xsi:type="GearsDeclarationType">
+						<Gear number="1">
+							<Ratio>14.930</Ratio>
+							<MaxTorque>1900</MaxTorque>
+							<MaxSpeed>2000</MaxSpeed>
+							<TorqueLossMap>
+								<Entry inputSpeed="0.00" inputTorque="-1000.00" torqueLoss="25.06"/>
+								<Entry inputSpeed="0.00" inputTorque="50.00" torqueLoss="6.06"/>
+								<Entry inputSpeed="0.00" inputTorque="3000.00" torqueLoss="54.06"/>
+								<Entry inputSpeed="2100.00" inputTorque="-1000.00" torqueLoss="35.69"/>
+								<Entry inputSpeed="2100.00" inputTorque="50.00" torqueLoss="16.69"/>
+								<Entry inputSpeed="2100.00" inputTorque="3000.00" torqueLoss="64.69"/>
+							</TorqueLossMap>
+						</Gear>
+						<Gear number="2">
+							<Ratio>11.640</Ratio>
+							<MaxTorque>1900</MaxTorque>
+							<MaxSpeed>2000</MaxSpeed>
+							<TorqueLossMap>
+								<Entry inputSpeed="0.00" inputTorque="-1000.00" torqueLoss="25.06"/>
+								<Entry inputSpeed="0.00" inputTorque="50.00" torqueLoss="6.06"/>
+								<Entry inputSpeed="0.00" inputTorque="3000.00" torqueLoss="54.06"/>
+								<Entry inputSpeed="2100.00" inputTorque="-1000.00" torqueLoss="35.69"/>
+								<Entry inputSpeed="2100.00" inputTorque="50.00" torqueLoss="16.69"/>
+								<Entry inputSpeed="2100.00" inputTorque="3000.00" torqueLoss="64.69"/>
+							</TorqueLossMap>
+						</Gear>
+					</Gears>
+				</v2.0:Data>
+				<v2.0:Signature>
+					<di:Reference URI="#gbx-vi2Oak2N">
+						<di:Transforms>
+							<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+							<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+						</di:Transforms>
+						<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+						<di:DigestValue>ieNmjofFObDBGnB7+GX9of3HYe3ydK/ra+YvmULVJIk=</di:DigestValue>
+					</di:Reference>
+				</v2.0:Signature>
+			</Gearbox>
+			<TorqueConverter><!-- optional -->
+				<v2.0:Data id="tc-123xyz" xsi:type="v2.0:TorqueConverterDataDeclarationType" xmlns="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v2.0">
+					<Manufacturer>Some Manufacturer</Manufacturer>
+					<Model>Some Model</Model>
+					<CertificationNumber>e12*0815/8051*2017/05E0000*00</CertificationNumber>
+					<Date>2017-02-15T11:00:00Z</Date>
+					<AppVersion>TC CalcApp 123</AppVersion>
+					<CertificationMethod>Standard values</CertificationMethod>
+					<Characteristics>
+						<Entry speedRatio="0.0000" torqueRatio="1.00" inputTorqueRef="300.00"/>
+						<Entry speedRatio="0.5000" torqueRatio="1.00" inputTorqueRef="200.00"/>
+						<Entry speedRatio="0.9000" torqueRatio="0.90" inputTorqueRef="200.00"/>
+					</Characteristics>
+				</v2.0:Data>
+				<v2.0:Signature>
+					<di:Reference URI="#tc-123xyz">
+						<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+						<di:DigestValue>q2sumDwsqQKLw4xwkEllgsygF5bHBwZPSS66UNaXXis=</di:DigestValue>
+					</di:Reference>
+				</v2.0:Signature>
+			</TorqueConverter>
+			<Axlegear>
+				<v2.0:Data id="AXL-EC3ohnoh" xsi:type="v2.0:AxlegearDataDeclarationType" xmlns="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v2.0">
+					<Manufacturer>Generic Gearbox Manufacturer</Manufacturer>
+					<Model>Generic 40t Long Haul Truck AxleGear</Model>
+					<CertificationNumber>e12*0815/8051*2017/05E0000*00</CertificationNumber>
+					<Date>2017-01-11T11:00:00Z</Date>
+					<AppVersion>3.0.1</AppVersion>
+					<LineType>Single portal axle</LineType>
+					<Ratio>2.590</Ratio>
+					<CertificationMethod>Standard values</CertificationMethod>
+					<TorqueLossMap>
+						<Entry inputSpeed="0.00" inputTorque="-5000.00" torqueLoss="115.00"/>
+						<Entry inputSpeed="0.00" inputTorque="0.00" torqueLoss="40.00"/>
+						<Entry inputSpeed="0.00" inputTorque="15000.00" torqueLoss="265.00"/>
+						<Entry inputSpeed="2100.00" inputTorque="-5000.00" torqueLoss="115.00"/>
+						<Entry inputSpeed="2100.00" inputTorque="0.00" torqueLoss="40.00"/>
+						<Entry inputSpeed="2100.00" inputTorque="35000.00" torqueLoss="565.00"/>
+					</TorqueLossMap>
+				</v2.0:Data>
+				<v2.0:Signature>
+					<di:Reference URI="#AXL-EC3ohnoh">
+						<di:Transforms>
+							<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+							<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+						</di:Transforms>
+						<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+						<di:DigestValue>o4nYTajmWKaduxys5ShmnfJbYd23rpxZ01JbuG6dmzU=</di:DigestValue>
+					</di:Reference>
+				</v2.0:Signature>
+			</Axlegear>
+			<AxleWheels>
+				<Data xsi:type="AxleWheelsDataDeclarationType" xmlns="urn:tugraz:ivt:VectoAPI:DeclarationDefinitions:v2.0">
+					<Axles>
+						<Axle axleNumber="1" xsi:type="AxleDataDeclarationType">
+							<AxleType>VehicleNonDriven</AxleType>
+							<TwinTyres>false</TwinTyres>
+							<Steered>true</Steered>
+							<Tyre>
+								<Data id="WHL-5432198760-315-70-R22.5" xsi:type="TyreDataDeclarationType">
+									<Manufacturer>Generic Wheels Manufacturer</Manufacturer>
+									<Model>Generic Wheel</Model>
+									<CertificationNumber>e12*0815/8051*2017/05E0000*00</CertificationNumber>
+									<Date>2017-01-11T14:00:00Z</Date>
+									<AppVersion>Tyre Generation App 1.0</AppVersion>
+									<Dimension>315/70 R22.5</Dimension>
+									<RRCDeclared>0.0055</RRCDeclared>
+									<FzISO>31300</FzISO>
+								</Data>
+								<Signature>
+									<di:Reference URI="#WHL-5432198760-315-70-R22.5">
+										<di:Transforms>
+											<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+											<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+										</di:Transforms>
+										<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+										<di:DigestValue>4TkUGQTX8tevHOU9Cj9uyCFuI/aqcEYlo/gyVjVQmv0=</di:DigestValue>
+									</di:Reference>
+								</Signature>
+							</Tyre>
+						</Axle>
+						<Axle axleNumber="2" xsi:type="AxleDataDeclarationType">
+							<AxleType>VehicleDriven</AxleType>
+							<TwinTyres>true</TwinTyres>
+							<Steered>false</Steered>
+							<Tyre>
+								<Data id="WHL-5432198760-315-70-R22.5" xsi:type="TyreDataDeclarationType">
+									<Manufacturer>Generic Wheels Manufacturer</Manufacturer>
+									<Model>Generic Wheel</Model>
+									<CertificationNumber>e12*0815/8051*2017/05E0000*00</CertificationNumber>
+									<Date>2017-01-11T14:00:00Z</Date>
+									<AppVersion>Tyre Generation App 1.0</AppVersion>
+									<Dimension>315/70 R22.5</Dimension>
+									<RRCDeclared>0.0063</RRCDeclared>
+									<FzISO>31300</FzISO>
+								</Data>
+								<Signature>
+									<di:Reference URI="#WHL-5432198760-315-70-R22.5">
+										<di:Transforms>
+											<di:Transform Algorithm="urn:vecto:xml:2017:canonicalization"/>
+											<di:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
+										</di:Transforms>
+										<di:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/>
+										<di:DigestValue>KljvtvGUUQ/L7MiLVAqU+bckL5PNDNNwdeLH9kUVrfM=</di:DigestValue>
+									</di:Reference>
+								</Signature>
+							</Tyre>
+						</Axle>
+					</Axles>
+				</Data>
+			</AxleWheels>
+			<Auxiliaries>
+				<Data xsi:type="AUX_Conventional_PrimaryBusType">
+					<Fan>
+						<Technology>Hydraulic driven - Constant displacement pump</Technology>
+					</Fan>
+					<SteeringPump>
+						<Technology axleNumber="1">Variable displacement elec. controlled</Technology>
+					</SteeringPump>
+					<ElectricSystem>
+						<AlternatorTechnology>conventional</AlternatorTechnology>
+						<SmartAlternator><!-- optional -->
+							<RatedCurrent>100</RatedCurrent>
+							<RatedVoltage>48</RatedVoltage>
+						</SmartAlternator>
+						<SmartAlternator><!-- optional -->
+							<RatedCurrent>50</RatedCurrent>
+							<RatedVoltage>48</RatedVoltage>
+						</SmartAlternator>
+						<Battery><!-- optional -->
+							<BatteryTechnology>li-ion battery - high power</BatteryTechnology>
+							<RatedCapacity>50</RatedCapacity>
+							<NominalVoltage>48</NominalVoltage>
+						</Battery>
+						<Capacitor><!-- optional -->
+							<CapacitorTechnology>with DCDC converter</CapacitorTechnology>
+							<RatedCapacitance>120</RatedCapacitance>
+							<RatedVoltage>30</RatedVoltage>
+						</Capacitor>
+					</ElectricSystem>
+					<PneumaticSystem>
+						<SizeOfAirSupply>Large Supply 2-stage</SizeOfAirSupply>
+						<CompressorDrive>mechanically</CompressorDrive>
+						<Clutch>none</Clutch>
+						<CompressorRatio>1.000</CompressorRatio>
+						<SmartCompressionSystem>false</SmartCompressionSystem>
+						<SmartRegenerationSystem>false</SmartRegenerationSystem>
+						<AirsuspensionControl>electronically</AirsuspensionControl>
+						<PneumaticSCRReagentDosing>true</PneumaticSCRReagentDosing>
+					</PneumaticSystem>
+					<HVAC>
+						<AdjustableCoolantThermostat>true</AdjustableCoolantThermostat>
+						<EngineWasteGasHeatExchanger>true</EngineWasteGasHeatExchanger>
+					</HVAC>
+				</Data>
+			</Auxiliaries>
+		</Components>
+	</v2.0:Vehicle>
+</tns:VectoInputDeclaration>
diff --git a/VectoCore/VectoCoreTest/VectoCoreTest.csproj b/VectoCore/VectoCoreTest/VectoCoreTest.csproj
index 4e4d1698aa7b01ba0b548f2732cd1a4b77c03bb8..2e3361a42f246335234df4ff39922abf94e2c896 100644
--- a/VectoCore/VectoCoreTest/VectoCoreTest.csproj
+++ b/VectoCore/VectoCoreTest/VectoCoreTest.csproj
@@ -6028,6 +6028,9 @@
     <Content Include="TestData\XML\XMLReaderDeclaration\SchemaVersion2.10\Distributed\PrimaryBus\PEV_primaryBus_E4.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="TestData\XML\XMLReaderDeclaration\SchemaVersion2.10\WithoutOptionalEntries\Conventional_primaryBus_AMT_n_opt.xml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
     <Content Include="TestData\XML\XMLReaderDeclaration\SchemaVersion2.1\Tractor_4x2_vehicle-class-5_5_t_0.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
diff --git a/VectoCore/VectoCoreTest/XML/XMLDeclarationInputv210.cs b/VectoCore/VectoCoreTest/XML/XMLDeclarationInputv210.cs
index 7c4923fd224455458421e58844f60142e41ee39f..8d94a20fc55d3928993fffaab2360384823342cc 100644
--- a/VectoCore/VectoCoreTest/XML/XMLDeclarationInputv210.cs
+++ b/VectoCore/VectoCoreTest/XML/XMLDeclarationInputv210.cs
@@ -233,6 +233,7 @@ namespace TUGraz.VectoCore.Tests.XML
 			Assert.IsNotNull(vehicle.Components.AxleGearInputData);
 			Assert.IsNotNull(vehicle.Components.AxleWheels);
 			Assert.IsNotNull(vehicle.Components.AuxiliaryInputData);
+			Assert.IsNotNull(vehicle.Components.AuxiliaryInputData.Auxiliaries);
 			Assert.IsNull(vehicle.Components.BusAuxiliaries);
 			Assert.IsNull(vehicle.Components.ElectricStorage);
 			Assert.IsNull(vehicle.Components.PTOTransmissionInputData);
@@ -240,10 +241,11 @@ namespace TUGraz.VectoCore.Tests.XML
 			Assert.IsNull(vehicle.MaxPropulsionTorque);//Vehicle Max Prop. Limit
 		}
 
-		[TestCase(@"PrimaryBus\Conventional_primaryBus_AMT.xml")]
-		public void TestConventionalPrimaryHeavyBus(string jobfile)
+		[TestCase(@"PrimaryBus\Conventional_primaryBus_AMT.xml", BASE_DIR)]
+		[TestCase(@"Conventional_primaryBus_AMT_n_opt.xml", Optional_TESTS_DIR)]
+		public void TestConventionalPrimaryHeavyBus(string jobfile, string testDir)
 		{
-			var filename = Path.Combine(BASE_DIR, jobfile);
+			var filename = Path.Combine(testDir, jobfile);
 			var dataProvider = xmlInputReader.CreateDeclaration(XmlReader.Create(filename));
 
 			Assert.NotNull(dataProvider);
@@ -251,23 +253,34 @@ namespace TUGraz.VectoCore.Tests.XML
 
 			var vehicle = dataProvider.JobInputData.Vehicle;
 			Assert.NotNull(vehicle);
+			Assert.IsNotNull(vehicle.ADAS);
 			Assert.IsNotNull(vehicle.Components);
 			Assert.IsNotNull(vehicle.Components.EngineInputData);
 			Assert.IsNull(vehicle.Components.ElectricMachines);
+			Assert.IsNull(vehicle.Components.IEPC);
 			Assert.IsNotNull(vehicle.Components.GearboxInputData);
 			TestTorqueConverter(vehicle);
-			Assert.IsNotNull(vehicle.Components.AngledriveInputData);//optional
-			Assert.IsNotNull(vehicle.Components.RetarderInputData);//optional
+			
+			//optional test
+			if (testDir == Optional_TESTS_DIR) {
+				Assert.IsNull(vehicle.Components.AngledriveInputData);
+				Assert.IsNull(vehicle.Components.RetarderInputData);
+				Assert.IsNull(vehicle.TorqueLimits);
+			}
+			else {
+				Assert.IsNotNull(vehicle.Components.AngledriveInputData);
+				Assert.IsNotNull(vehicle.Components.RetarderInputData);
+				Assert.IsNotNull(vehicle.TorqueLimits);
+			}
+
 			Assert.IsNotNull(vehicle.Components.AxleGearInputData);
 			Assert.IsNotNull(vehicle.Components.AxleWheels);
 			Assert.IsNull(vehicle.Components.AuxiliaryInputData);
 			Assert.IsNotNull(vehicle.Components.BusAuxiliaries);
-
 			Assert.IsNull(vehicle.Components.AirdragInputData);
 			Assert.IsNull(vehicle.Components.ElectricStorage);
 			Assert.IsNull(vehicle.Components.PTOTransmissionInputData);
 			Assert.IsNull(vehicle.CargoVolume);
-			Assert.IsNotNull(vehicle.TorqueLimits);
 			Assert.IsNull(vehicle.ElectricMotorTorqueLimits);//Vehicle EM Drive Limits
 			Assert.IsNull(vehicle.MaxPropulsionTorque);//Vehicle Max Prop. Limit
 		}