Date registered: Oct 2004
Vehicle: 2013 S550
Location: Tampa, Florida
Mentioned: 37 Post(s)
Quoted: 446 Post(s)
First, a little more care in posing your question would be helpful to those of us trying to understand what you are asking. As I understand the question, you let the car sit for 3 months, then started it with a battery booster; an intermittent squeal began somewhere on the passenger side of the car (engine compartment, or elsewhere?), and your ABS and ESP lights came on after it started. By "swilling" I suspect you meant "squealing."
The ABS and ESP lights will come on if you battery has been allowed to run down or has been disconnected. See the "RESETS" link in the "General Info" portion of the DIY & FAQs in the "stickies," in the blue backgrounded portion at the upper part of the first forum page. The reset is very simple, but I want to point you to a resource that will be helpful during your ownership.
We could speculate on belts, pumps, squealing shafts or any number of things; a bit more precision on the origin of the squealing would be helpful.
2005 S500 4-Matic
Last edited by Skylaw; 06-21-2019 at 05:57 PM.