noisier than usual???

may i say first of all that after bought my disco, i dont think i could drive anything else again! im not sure whether there is a problem or not, but the thing is that the noise which you can associate with a disiel vehicle ( like a chugging sound sorry cant think of another word for it) well it is noticably louder!!! can anybody help at all??

I think its called landyitise!
Now you own and use one you constantly listening for new and strange noise,
Soory but it just gets worse,you just convince yersels summats going to let go at any minute

landyitis you say!! yeah ive only had him a few months so i am very new to them! gonna have to get used to it rnt i? thanx mondo