Can some one just put my mind at rest, I have been having performance problems at high revs for a while now & think this is probably down to an iffy fuel pump, (it has been making a bit of a racket) Looking to get a replacement I learned that depending on the year (post 95) W126s ran two smaller pumps rather than one. Is this right? I was also informed that the 2 smalls could easily be replaced with a single large one. again is this right and has anyone experience of doing this? thanks in advance for all your help on this one