Hannu, I'm lookin' at my Bentley manuals right here, and they state:
"Volkswagen Eurovan Official Repair Manual 1992-1999 Gasoline, Diesel, TDI, 5-cylinder and VR6 including MultiVan and CV Camper."
(in case you were wondering, the US market does NOT have a TDI T4, otherwise I'd be driving one right now!)
Perhaps it might be easier if you asked your question and those of us with any relevant info could try and help you out?
Norman
'91 Jetta GLI
'93 Eurovan MV
'00 Golf GLS TDI