Odata: Hexadecimal value error 0x03

When making a connection in MSExcel with a published Odata Service, the following error appears: 'special sign' hexadecimal value 0x03, is an invalid character. Line 1, position 194185. I cannot find the special sign in the database after dumping this to a text file. (MSSQL database and dump via database). I have tried to put the log-levels from all the Connection* to trace but this does not help.   How can I find this special sign and is there a way to detect special signs in my database in order to make the OData services work?    
1 answers

Stackoverflow has a topic about this one: http://stackoverflow.com/questions/36306902/hexadecimal-value-0x03-is-an-invalid-character

You might check the string you are sending over OData.