diff --git a/McZapkie/MOVER.h b/McZapkie/MOVER.h
index 4c8fa8e7..5575c5d9 100644
--- a/McZapkie/MOVER.h
+++ b/McZapkie/MOVER.h
@@ -869,6 +869,7 @@ private:
 
 		bool IsReady{ false }; //Output: readyness to braking - cylinder is armed, spring is tentioned
 		bool IsActive{ false }; //Output: brake is working
+		double SBP{ 0.0 }; //Output: pressure in spring brake cylinder
 
 		bool PNBrakeConnection{ false }; //Conf: connection to pneumatic brake cylinders
 		double MaxSetPressure { 0.0 }; //Conf: Maximal pressure for switched off brake
diff --git a/McZapkie/Mover.cpp b/McZapkie/Mover.cpp
index 0c7ccbc5..1e5d59aa 100644
--- a/McZapkie/Mover.cpp
+++ b/McZapkie/Mover.cpp
@@ -4092,25 +4092,28 @@ void TMoverParameters::UpdateScndPipePressure(double dt)
 // *************************************************************************************************
 void TMoverParameters::UpdateSpringBrake(double dt)
 {
-	double SBP = SpringBrake.Cylinder->P();
 	double BP = SpringBrake.PNBrakeConnection ? BrakePress : 0;
 	double MSP = SpringBrake.ShuttOff ? 0 : SpringBrake.MaxSetPressure;
 	if (!SpringBrake.Activate)
 	{
 		double desired_press = std::min(std::max(MSP, BP), Pipe2->P());
-		double dv = PF(desired_press, SBP, SpringBrake.ValveOffArea);
+		double dv = PF(desired_press, SpringBrake.SBP, SpringBrake.ValveOffArea);
 		SpringBrake.Cylinder->Flow(-dv);
 		Pipe2->Flow(std::max(dv,0.0));
 	}
 	else
 	{
-		double dv = PF(BP, SBP, SpringBrake.ValveOnArea);
+		double dv = PF(BP, SpringBrake.SBP, SpringBrake.ValveOnArea);
 		SpringBrake.Cylinder->Flow(-dv);
 	}
-	if (SBP > SpringBrake.ResetPressure)
+	if (SpringBrake.SBP > SpringBrake.ResetPressure)
 		SpringBrake.IsReady = true;
+	
+	SpringBrake.IsActive = SpringBrake.SBP < (SpringBrake.IsActive ? SpringBrake.PressureOff : SpringBrake.PressureOn);
+
 	SpringBrake.Release = false;
 	SpringBrake.Cylinder->Act();
+	SpringBrake.SBP = SpringBrake.Cylinder->P();
 }
 
 // *************************************************************************************************
diff --git a/Train.cpp b/Train.cpp
index fb938be1..d0b96ee1 100644
--- a/Train.cpp
+++ b/Train.cpp
@@ -5899,6 +5899,8 @@ bool TTrain::Update( double const Deltatime )
             btLampkaBrakeProfileG.Turn( TestFlag( mvOccupied->BrakeDelayFlag, bdelay_G ) );
             btLampkaBrakeProfileP.Turn( TestFlag( mvOccupied->BrakeDelayFlag, bdelay_P ) );
             btLampkaBrakeProfileR.Turn( TestFlag( mvOccupied->BrakeDelayFlag, bdelay_R ) );
+			btLampkaSpringBrakeActive.Turn( mvOccupied->SpringBrake.IsActive );
+			btLampkaSpringBrakeInactive.Turn( !mvOccupied->SpringBrake.IsActive );
             // light indicators
             // NOTE: sides are hardcoded to deal with setups where single cab is equipped with all indicators
             btLampkaUpperLight.Turn( ( mvOccupied->iLights[ end::front ] & light::headlight_upper ) != 0 );
@@ -5947,6 +5949,8 @@ bool TTrain::Update( double const Deltatime )
             btLampkaBrakeProfileG.Turn( false );
             btLampkaBrakeProfileP.Turn( false );
             btLampkaBrakeProfileR.Turn( false );
+			btLampkaSpringBrakeActive.Turn( false );
+			btLampkaSpringBrakeInactive.Turn( false );
             btLampkaMaxSila.Turn( false );
             btLampkaPrzekrMaxSila.Turn( false );
             btLampkaRadio.Turn( false );
@@ -7572,6 +7576,8 @@ void TTrain::clear_cab_controls()
     btLampkaBrakeProfileG.Clear();
     btLampkaBrakeProfileP.Clear();
     btLampkaBrakeProfileR.Clear();
+	btLampkaSpringBrakeActive.Clear();
+	btLampkaSpringBrakeInactive.Clear();
     btLampkaSprezarka.Clear();
     btLampkaSprezarkaB.Clear();
     btLampkaSprezarkaOff.Clear();
@@ -7979,6 +7985,8 @@ bool TTrain::initialize_button(cParser &Parser, std::string const &Label, int co
         { "i-brakeprofileg:", btLampkaBrakeProfileG },
         { "i-brakeprofilep:", btLampkaBrakeProfileP },
         { "i-brakeprofiler:", btLampkaBrakeProfileR },
+		{ "i-springbrakeactive:", btLampkaSpringBrakeActive },
+		{ "i-springbrakeinactive:", btLampkaSpringBrakeInactive },
         { "i-braking-ezt:", btLampkaHamowanie1zes },
         { "i-braking-ezt2:", btLampkaHamowanie2zes },
         { "i-compressor:", btLampkaSprezarka },
@@ -8334,6 +8342,13 @@ bool TTrain::initialize_gauge(cParser &Parser, std::string const &Label, int con
         gauge.Load(Parser, DynamicObject, 0.1);
         gauge.AssignDouble(&mvControlled->PantPress);
     }
+	else if (Label == "springbrakepress:")
+	{
+		// manometr cylindra hamulca sprężynowego
+		auto &gauge = Cabine[Cabindex].Gauge(-1); // pierwsza wolna gałka
+		gauge.Load(Parser, DynamicObject, 0.1);
+		gauge.AssignDouble(&mvOccupied->SpringBrake.SBP);
+	}
     else if ((Label == "compressor:") || (Label == "compressorb:"))
     {
         // manometr sprezarki/zbiornika glownego
diff --git a/Train.h b/Train.h
index 842af209..7ca13749 100644
--- a/Train.h
+++ b/Train.h
@@ -568,6 +568,8 @@ public: // reszta może by?publiczna
     TButton btLampkaBrakeProfileG; // cargo train brake acting speed
     TButton btLampkaBrakeProfileP; // passenger train brake acting speed
     TButton btLampkaBrakeProfileR; // rapid brake acting speed
+	TButton btLampkaSpringBrakeActive;
+	TButton btLampkaSpringBrakeInactive;
     // KURS90
     TButton btLampkaBoczniki;
     TButton btLampkaMaxSila;