I am told by the dealer that the car needs VFUEL fuel induction service. Why? on 1999 Mercedes-Benz S420

What is VFUEL? In addition the right front sway bar link, differential service, and an alignment has been recommended. Do I really need these repairs? The car has less than 55,000 miles.

Asked by for the 1999 Mercedes-Benz S420
maybe you spelled or heard it wrong...there is no vfuel when I searched google