Hello,

A question concerning injectors for a 123. They've got over 240K on them and as far as I know have never been serviced. So, are these a "ain't broke don't fix it" item or should they be serviced at specified intervals? The car runs fine, gets about 25-28 mpg and makes smooth power. It does however idle a little rough at times. If they should be replaced does anyone have a good source? Thanks for your help!