about to do a service on my 2014 mk3 octavia vrs diesel all the motor factors quote two different types of fuel filter  1 for filter housing without water-sensor  2  for filter housing with water-sensor.    How can I tell the difference or is there any difference? 

 

Ufi part number is on side of casing this matches up with a note in filter catalogue . One final thing these are ment to be bleed by vcds 

Thanks .