diff --git a/DynObj.cpp b/DynObj.cpp
index 9283d57c..cdc43145 100644
--- a/DynObj.cpp
+++ b/DynObj.cpp
@@ -3198,9 +3198,30 @@ bool TDynamicObject::Update(double dt, double dt1)
                     MoverParameters->EpFuse ) ) {
                 FzadED = std::min( Fzad, FmaxED );
             }
+			/*/ELF - wdrazanie ED po powrocie na utrzymanie hamowania - do usuniecia 
 			if (MoverParameters->EIMCtrlType == 2 && MoverParameters->MainCtrlPos < 2 && MoverParameters->eimic > -0.999)
 			{
 				FzadED = std::min(FzadED, MED_oldFED);
+			} //*/
+			//opoznienie wdrazania ED 
+			if (FzadED > MED_oldFED)
+			{
+				if (MoverParameters->MED_ED_DelayTimer <= 0) {
+					MoverParameters->MED_ED_DelayTimer += dt1;
+					if (MoverParameters->MED_ED_DelayTimer > 0) {
+
+					}
+					else {
+						FzadED = std::min(FzadED, MED_oldFED);
+					}
+				}
+				else
+				{
+					FzadED = std::min(FzadED, MED_oldFED);
+					MoverParameters->MED_ED_DelayTimer = (FrED > 0 ?
+															-MoverParameters->MED_ED_Delay2 :
+															-MoverParameters->MED_ED_Delay1);
+				}
 			}
 			if ((MoverParameters->BrakeCtrlPos == MoverParameters->Handle->GetPos(bh_EB))
 				&& (MoverParameters->eimc[eimc_p_abed] < 0.001)) 
@@ -4191,7 +4212,10 @@ void TDynamicObject::RenderSounds() {
 
 	// epbrake - epcompact
 	if (( MoverParameters->BrakeSystem == TBrakeSystem::ElectroPneumatic ) && ( MoverParameters->LocHandle )) {
-		auto const epbrakepressureratio{ std::max( 0.0, MoverParameters->LocHandle->GetCP() ) / std::max(1.0, MoverParameters->MaxBrakePress[0] ) };
+		auto const epbrakepressureratio{ std::min( std::max( 0.0, MoverParameters->LocHandle->GetCP() ) / std::max( 1.0, MoverParameters->MaxBrakePress[0] ),
+												   m_epbrakepressurechangedectimer > -1.0f ?
+													   std::max( MoverParameters->LocalBrakePosAEIM, MoverParameters->Hamulec->GetEDBCP() / MoverParameters->MaxBrakePress[3]) :
+														1.0 ) };
 		if ( m_lastepbrakepressure != -1.f ) {
 			// HACK: potentially reset playback of opening bookend sounds
 			if ( false == m_epbrakepressureincrease.is_playing() ) {
@@ -4200,27 +4224,33 @@ void TDynamicObject::RenderSounds() {
 			if ( false == m_epbrakepressuredecrease.is_playing() ) {
 				m_epbrakepressuredecrease.stop();
 			}
+			m_epbrakepressurechangeinctimer += dt;
+			m_epbrakepressurechangedectimer += dt;
 			// actual sound playback
 			auto const epquantizedratio{ static_cast<int>( 50 * epbrakepressureratio) };
 			auto const lastepbrakepressureratio { std::max( 0.f, m_lastepbrakepressure ) / std::max( 1.0, MoverParameters->MaxBrakePress[0] ) };
 			auto const epquantizedratiochange { epquantizedratio - static_cast<int>( 50 * lastepbrakepressureratio ) };
-			if ( epquantizedratiochange > 0 ) {
+			if ( epquantizedratiochange > 0 && m_epbrakepressurechangeinctimer > 0.05f) {
 				m_epbrakepressureincrease
 					.pitch(
 						true == m_epbrakepressureincrease.is_combined() ?
 						epquantizedratio * 0.01f :
 						m_epbrakepressureincrease.m_frequencyoffset + m_epbrakepressureincrease.m_frequencyfactor * 1.f )
 					.play();
+				m_epbrakepressurechangeinctimer = 0;
 			}
-			else if ( epquantizedratiochange < 0 ) {
+			else if ( epquantizedratiochange < 0 && m_epbrakepressurechangedectimer > 0.3f) {
 				m_epbrakepressuredecrease
 					.pitch(true == m_epbrakepressuredecrease.is_combined() ?
-						epquantizedratio * 0.01f :
+						-epquantizedratiochange * 0.01f :
 						m_epbrakepressuredecrease.m_frequencyoffset + m_epbrakepressuredecrease.m_frequencyfactor * 1.f )
 					.play();
+				m_epbrakepressurechangedectimer = 0;
 			}
 		}
-		m_lastepbrakepressure = MoverParameters->LocHandle->GetCP();
+		if ( ( m_epbrakepressurechangeinctimer == 0 ) || ( m_epbrakepressurechangedectimer == 0 ) )
+		m_lastepbrakepressure = std::min( MoverParameters->LocHandle->GetCP(),
+										  MoverParameters->LocalBrakePosAEIM * std::max( 1.0, MoverParameters->MaxBrakePress[0] ) );
 	}
 
     // emergency brake
diff --git a/DynObj.h b/DynObj.h
index df44a7ff..49cd960c 100644
--- a/DynObj.h
+++ b/DynObj.h
@@ -503,6 +503,8 @@ private:
 	sound_source m_epbrakepressuredecrease{ sound_placement::external };
 	float m_lastepbrakepressure{ -1.f }; // helper, cached level of pressure in the brake cylinder
 	float m_epbrakepressurechange{ 0.f }; // recent change of pressure in the brake cylinder
+	float m_epbrakepressurechangeinctimer{ 0.f }; // last time of change of pressure in the brake cylinder - increase
+	float m_epbrakepressurechangedectimer{ 0.f }; // last time of change of pressure in the brake cylinder - decrease
     sound_source m_emergencybrake { sound_placement::engine };
     double m_emergencybrakeflow{ 0.f };
     sound_source sReleaser { sound_placement::external };
diff --git a/McZapkie/MOVER.h b/McZapkie/MOVER.h
index badb39de..1daac212 100644
--- a/McZapkie/MOVER.h
+++ b/McZapkie/MOVER.h
@@ -1314,6 +1314,8 @@ public:
 	bool MED_Ncor = 0; // czy korekcja sily hamowania z uwzglednieniem nacisku
     double MED_MinBrakeReqED = 0; // minimalne zadanie sily hamowania uruchamiajace ED - ponizej tylko EP
 	double MED_FrED_factor = 1; // mnoznik sily hamowania ED do korekty blendingu
+	double MED_ED_Delay1 = 0; // opoznienie wdrazania hamowania ED (pierwszy raz)
+	double MED_ED_Delay2 = 0; // opoznienie zwiekszania sily hamowania ED (kolejne razy)
 
     int DCEMUED_CC { 0 }; //na którym sprzęgu sprawdzać działanie ED
     double DCEMUED_EP_max_Vel{ 0.0 }; //maksymalna prędkość, przy której działa EP przy włączonym ED w jednostce (dla tocznych)
@@ -1602,6 +1604,7 @@ public:
 	double eimicSpeedCtrlIntegral = 0; /*calkowany blad ustawienia predkosci*/
 	double NewSpeed = 0; /*nowa predkosc do zadania*/
 	double MED_EPVC_CurrentTime = 0; /*aktualny czas licznika czasu korekcji siły EP*/
+	double MED_ED_DelayTimer = 0; /*aktualny czas licznika opoznienia hamowania ED*/
 
 	/*-zmienne dla drezyny*/
 	double PulseForce = 0.0;        /*przylozona sila*/
diff --git a/McZapkie/Mover.cpp b/McZapkie/Mover.cpp
index 8839c4f3..6313505d 100644
--- a/McZapkie/Mover.cpp
+++ b/McZapkie/Mover.cpp
@@ -10534,6 +10534,8 @@ void TMoverParameters::LoadFIZ_Blending(std::string const &line) {
 	extract_value(MED_Ncor, "MED_Ncor", line, "");
 	extract_value(MED_MinBrakeReqED, "MED_MinBrakeReqED", line, "");
 	extract_value(MED_FrED_factor, "MED_FrEDFactor", line, "");
+	extract_value(MED_ED_Delay1, "MED_FirstDelayED", line, "");
+	extract_value(MED_ED_Delay2, "MED_ScndDelayED", line, "");
 }
 
 void TMoverParameters::LoadFIZ_DCEMUED(std::string const &line) {