hi guys would be grate full of any information i recently had my glowplugs changed because they were the original ones in there. i got them changed at the garage cause i herd some horror stories bout snaping them and i am quite heavy handed. got my car back and they said the 3rd plug was seized in the head and they didnt want to try and change it. and i am getting p0830 code i think it is to do with this plug. thanks guys for any help.