diff --git a/src/autoreplace_cmd.cpp b/src/autoreplace_cmd.cpp
--- a/src/autoreplace_cmd.cpp
+++ b/src/autoreplace_cmd.cpp
@@ -766,7 +766,7 @@ CommandCost CmdSetAutoReplace(TileIndex 
 
 	if (flags & DC_EXEC) {
 		GroupStatistics::UpdateAutoreplace(_current_company);
-		SetWindowClassesDirty(GetWindowClassForVehicleType(Engine::Get(old_engine_type)->type));
+		if (IsLocalCompany()) SetWindowDirty(WC_REPLACE_VEHICLE, Engine::Get(old_engine_type)->type);
 	}
 	if ((flags & DC_EXEC) && IsLocalCompany()) InvalidateAutoreplaceWindow(old_engine_type, id_g);
 
diff --git a/src/autoreplace_gui.cpp b/src/autoreplace_gui.cpp
--- a/src/autoreplace_gui.cpp
+++ b/src/autoreplace_gui.cpp
@@ -186,7 +186,6 @@ class ReplaceVehicleWindow : public Wind
 		EngineID veh_from = this->sel_engine[0];
 		EngineID veh_to = this->sel_engine[1];
 		DoCommandP(0, (replace_when_old ? 1 : 0) | (this->sel_group << 16), veh_from + (veh_to << 16), CMD_SET_AUTOREPLACE);
-		this->SetDirty();
 	}
 
 public:
@@ -455,7 +454,6 @@ public:
 			case WID_RV_STOP_REPLACE: { // Stop replacing
 				EngineID veh_from = this->sel_engine[0];
 				DoCommandP(0, this->sel_group << 16, veh_from + (INVALID_ENGINE << 16), CMD_SET_AUTOREPLACE);
-				this->SetDirty();
 				break;
 			}