can anybody explain why my good old faithful Maxiscan MS300 code reader will not work on a citroen c5?.This is the first time it has not been able to connect with a vehicle computer,everyother vehicle i have tried it onit has always worked, yet it just wont connect to my citroen c5,all i get is "Link Error".The car is a 2003 model c5 110hp diesel estate, which i aquired recently,lt has 178000 miles on the clock runs well apart from "Anti pollution fault" has been abused somewhat but goes quite well.Any advice or assistance will be gratefully accepted. <_<