Yes, big changes over the life of the 190E, from virtually nothing to at least something towards the end. Not sure if you have an 8 pin or 16 pin diagnostic connector but you just need to build the code reader and pull the codes from pin 3. Post 3 here - http://www.peachparts.com/shopforum/showthread.php?t=107630 for building the code reader. You need the CIS 103 motor code list.