Index: sources/canbus/messageinterpreter.cpp
===================================================================
diff -u -r0a2ca0373a422201d5316df8fb891ef38799e3f9 -red85c796c2e3bd73aeda374d9a109750bd7732e3
--- sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision 0a2ca0373a422201d5316df8fb891ef38799e3f9)
+++ sources/canbus/messageinterpreter.cpp	(.../messageinterpreter.cpp)	(revision ed85c796c2e3bd73aeda374d9a109750bd7732e3)
@@ -88,12 +88,15 @@
     if (vActionId == Gui::GuiActionType::ID_KeepAlive)
         return true; // This message is an exception which is also used to generate fake data and it has a variable length.
 
-    if (vData.length() < payloadLen[vActionId]) {
-        QString mActionIdHexString = Format::toHexString(vActionId);
-        LOG_DEBUG(QString("Incorrect data length for transmit Message with ID '%1'").arg(mActionIdHexString));
-        return false;
-    }
-    return true;
+    if (payloadLen[vActionId] == 0)
+        return true; // Message with zero length data are ok as been defined
+
+    if (vData.length()) return true;
+
+    QString mActionIdHexString = Format::toHexString(vActionId);
+    LOG_DEBUG(QString("Data length for transmit Message with ID '%1'Can't be 0")
+              .arg(mActionIdHexString));
+    return false;
 }
 /*!
  * \brief   MessageInterpreter::validateMessage
Index: sources/storage/DriveWatcher.cpp
===================================================================
diff -u -r920342d3f8cb8c29966f2354ebc7d241df23ccf7 -red85c796c2e3bd73aeda374d9a109750bd7732e3
--- sources/storage/DriveWatcher.cpp	(.../DriveWatcher.cpp)	(revision 920342d3f8cb8c29966f2354ebc7d241df23ccf7)
+++ sources/storage/DriveWatcher.cpp	(.../DriveWatcher.cpp)	(revision ed85c796c2e3bd73aeda374d9a109750bd7732e3)
@@ -225,14 +225,15 @@
     static qint64 mOAvailable; qint64 mCAvailable;
 
     mCIsReady = driveSpaceCheck(Storage::SDCard_Base_Path_Name, mCTotal, mCAvailable);
+    mPercent    = (100 * mCAvailable) / mCTotal;
     if (mOIsReady   == mCIsReady   &&
         mOTotal     == mCTotal     &&
-        mOAvailable == mCAvailable ) return;
+        mOAvailable == mCAvailable &&
+        mPercent >= _minRequiredAvailableSpacePercent ) return;
 
     mOIsReady   = mCIsReady   ;
     mOTotal     = mCTotal     ;
     mOAvailable = mCAvailable ;
-    mPercent    = (100 * mCAvailable) / mCTotal;
     emit didSDCardSpaceChange(mCIsReady, mCTotal, mCAvailable, mPercent);
     // coco end
 }
Index: sources/storage/DriveWatcher.h
===================================================================
diff -u -r3aab84456cfbdc4c4f495975ba9b8968eb844309 -red85c796c2e3bd73aeda374d9a109750bd7732e3
--- sources/storage/DriveWatcher.h	(.../DriveWatcher.h)	(revision 3aab84456cfbdc4c4f495975ba9b8968eb844309)
+++ sources/storage/DriveWatcher.h	(.../DriveWatcher.h)	(revision ed85c796c2e3bd73aeda374d9a109750bd7732e3)
@@ -47,6 +47,8 @@
     const char *_usbDrive   = "";
     const int   _interval   = 1000; // in ms
 
+    const qint8 _minRequiredAvailableSpacePercent = 15;
+
     QThread    *_thread     = nullptr;
     bool        _init       = false;
 
Index: sources/storage/logger.cpp
===================================================================
diff -u -r920342d3f8cb8c29966f2354ebc7d241df23ccf7 -red85c796c2e3bd73aeda374d9a109750bd7732e3
--- sources/storage/logger.cpp	(.../logger.cpp)	(revision 920342d3f8cb8c29966f2354ebc7d241df23ccf7)
+++ sources/storage/logger.cpp	(.../logger.cpp)	(revision ed85c796c2e3bd73aeda374d9a109750bd7732e3)
@@ -383,9 +383,12 @@
 
 void Logger::onSDCardSpaceChange(bool vReady, qint64 vTotal, qint64 vAvailable, quint8 vPercent)
 {
-    if (vPercent > 10 ) {
+    if (vPercent < _availableSpacePercent ) {
         concurrentRemoveLogs();
+        qDebug() << 0 << vReady << vTotal << vAvailable << vPercent;
     }
-    qDebug() << vReady << vTotal << vAvailable << vPercent;
+    else {
+        qDebug() << 1 << vReady << vTotal << vAvailable << vPercent;
+    }
 }
 // coco end
Index: sources/storage/logger.h
===================================================================
diff -u -r920342d3f8cb8c29966f2354ebc7d241df23ccf7 -red85c796c2e3bd73aeda374d9a109750bd7732e3
--- sources/storage/logger.h	(.../logger.h)	(revision 920342d3f8cb8c29966f2354ebc7d241df23ccf7)
+++ sources/storage/logger.h	(.../logger.h)	(revision ed85c796c2e3bd73aeda374d9a109750bd7732e3)
@@ -99,6 +99,8 @@
         { LogType::eLogDebug,  5 },
     };
 
+    const qint8 _availableSpacePercent = 25; // currently 16G SD-Card so 4G should always be available.
+
     const char *_dateFormat = "yyyy_MM_dd";
     const char *_timeFormat = "HH:mm:ss";