diff --git a/McZapkie/Mover.cpp b/McZapkie/Mover.cpp
index d99160f3..b635553b 100644
--- a/McZapkie/Mover.cpp
+++ b/McZapkie/Mover.cpp
@@ -1353,8 +1353,6 @@ void TMoverParameters::Derail(DerailReason const Reason)
 // *************************************************************************************************
 double TMoverParameters::ComputeMovement(double dt, double dt1, const TTrackShape &Shape, TTrackParam &Track, TTractionParam &ElectricTraction, TLocation const &NewLoc, TRotation const &NewRot)
 {
-	const double Vepsilon = 1e-5;
-	const double Aepsilon = 1e-3; // ASBSpeed=0.8;
 
 	if (!TestFlag(DamageFlag, dtrain_out))
 	{ // Ra: to przepisywanie tu jest bez sensu
@@ -4450,8 +4448,6 @@ void TMoverParameters::UpdatePipePressure(double dt)
 		Pipe->Act();
 	}
 
-	const double LBDelay = 100;
-	const double kL = 0.5;
 	// double dV;
 	// TMoverParameters *c; // T_MoverParameters
 	double temp;
@@ -5161,7 +5157,6 @@ double TMoverParameters::BrakeForce(TTrackParam const & /*Track*/)
 
 	double K{0};
 	double Fb{0};
-	double sm{0};
 
 	switch (LocalBrake)
 	{
@@ -6827,7 +6822,6 @@ bool TMoverParameters::AutoRelaySwitch(bool State)
 bool TMoverParameters::AutoRelayCheck(void)
 {
 	bool OK = false; // b:int;
-	bool ARC = false;
 
 	auto const motorconnectorsoff{false == MotorConnectorsCheck()};
 
@@ -9585,9 +9579,6 @@ void TMoverParameters::BrakeSubsystemDecode()
 bool TMoverParameters::LoadFIZ(std::string chkpath)
 {
 	chkPath = chkpath; // assign class path for reloading
-	const int param_ok = 1;
-	const int wheels_ok = 2;
-	const int dimensions_ok = 4;
 
 	ConversionError = 666;
 	LISTLINE = 0;
diff --git a/McZapkie/hamulce.h b/McZapkie/hamulce.h
index dbadb29a..62c89bc0 100644
--- a/McZapkie/hamulce.h
+++ b/McZapkie/hamulce.h
@@ -1232,7 +1232,6 @@ class TMHZ_K5P : public TDriverHandle
 	/// <summary>Time chamber pressure [bar].</summary>
 	double TP = 0.0; // zbiornik czasowy
 	/// <summary>Reductor reservoir pressure [bar].</summary>
-	double RP = 0.0; // zbiornik redukcyjny
 	/// <summary>Reductor adjustment offset.</summary>
 	double RedAdj = 0.0; // dostosowanie reduktora cisnienia (krecenie kapturkiem)
 	/// <summary>True while filling-stroke / release wave is active.</summary>
@@ -1285,7 +1284,6 @@ class TMHZ_6P : public TDriverHandle
 	/// <summary>Time chamber pressure [bar].</summary>
 	double TP = 0.0; // zbiornik czasowy
 	/// <summary>Reductor reservoir pressure [bar].</summary>
-	double RP = 0.0; // zbiornik redukcyjny
 	/// <summary>Reductor adjustment offset.</summary>
 	double RedAdj = 0.0; // dostosowanie reduktora cisnienia (krecenie kapturkiem)
 	/// <summary>True while filling-stroke / release wave is active.</summary>
diff --git a/application/driveruipanels.h b/application/driveruipanels.h
index 84aec269..96b9ac1c 100644
--- a/application/driveruipanels.h
+++ b/application/driveruipanels.h
@@ -54,7 +54,6 @@ public:
 
 private:
 // members
-    std::array<char, 256> m_buffer;
 	TDynamicObject const *m_nearest { nullptr };
 };
 
@@ -133,8 +132,6 @@ private:
 	graph_data AccN_acc_graph;
 	float last_AccN;
 
-	std::array<char, 128> queue_event_buf = { 0 };
-	std::array<char, 128> queue_event_activator_buf = { 0 };
 
     bool m_eventqueueactivevehicleonly { false };
 };
diff --git a/environment/moon.cpp b/environment/moon.cpp
index 4f9b6123..4c38b6c9 100644
--- a/environment/moon.cpp
+++ b/environment/moon.cpp
@@ -263,7 +263,6 @@ void cMoon::refract() {
 
 void cMoon::irradiance() {
 
-	static double radtodeg = 57.295779513;					// converts from radians to degrees
 	static double degtorad = 0.0174532925;					// converts from degrees to radians
 
 	m_body.dayang = ( simulation::Time.year_day() - 1 ) * 360.0 / 365.0;
diff --git a/input/drivermouseinput.cpp b/input/drivermouseinput.cpp
index 40bf969d..ae067507 100644
--- a/input/drivermouseinput.cpp
+++ b/input/drivermouseinput.cpp
@@ -314,7 +314,7 @@ drivermouse_input::button( int const Button, int const Action ) {
         // left mouse button launches on_click event associated with to the node
         if (Button == GLFW_MOUSE_BUTTON_LEFT && Action == GLFW_PRESS) {
             GfxRenderer->Pick_Node_Callback(
-                [this](scene::basic_node *node) {
+                [](scene::basic_node *node) {
                     if( node == nullptr
                      || typeid(*node) != typeid(TAnimModel) )
                         return;
diff --git a/rendering/particles.cpp b/rendering/particles.cpp
index 78eacc19..4cbbc62c 100644
--- a/rendering/particles.cpp
+++ b/rendering/particles.cpp
@@ -332,7 +332,6 @@ smoke_source::initialize( smoke_particle &Particle ) {
 
     if( m_ownertype == owner_type::vehicle ) {
         Particle.opacity *= static_cast<float>(m_owner.vehicle->MoverParameters->dizel_fill);
-        auto const enginerevolutionsfactor { 1.5f }; // high engine revolutions increase initial particle velocity
         switch( m_owner.vehicle->MoverParameters->EngineType ) {
         case TEngineType::DieselElectric: {
                 if (m_owner.vehicle->MoverParameters->dizel_spinup == true)
diff --git a/vehicle/Train.cpp b/vehicle/Train.cpp
index 91d494a7..f8a5f14c 100644
--- a/vehicle/Train.cpp
+++ b/vehicle/Train.cpp
@@ -6886,7 +6886,6 @@ void TTrain::OnCommand_speedcontrolbutton(TTrain *Train, command_data const &Com
 {
 
 	auto const itemindex = static_cast<int>(Command.command) - static_cast<int>(user_command::speedcontrolbutton0);
-	auto &item = Train->ggSpeedCtrlButtons[itemindex];
 
 	if (Command.action == GLFW_PRESS)
 	{
@@ -11448,7 +11447,7 @@ void TTrain::set_cab_controls(int const Cab)
 	bool kier = DynamicObject->DirectionGet() * mvOccupied->CabOccupied > 0;
 	int flag = DynamicObject->MoverParameters->InverterControlCouplerFlag;
 	int itemstart = 0;
-	for (auto &item : ggInverterToggleButtons) // for each button
+	for ([[maybe_unused]] auto &item : ggInverterToggleButtons) // for each button
 	{
 		int itemindex = itemstart;
 		itemstart++;