2017 Mercedes Benz S 63 AMG Technical Service Bulletin # S-91_40-198 Date: 120427

Restraints - Seat Belt Buckle Warranty Replacement Information
Date: April 27, 2012
Order No.: S-B-91.40/198
Group: 91
SUBJECT: MY-All, Models All
Seat Belt Buckle
Seat belt buckle replacements will not be covered under warranty when there are glass splinters present in the buckle head. Test the seat belt buckle
function and check for broken glass when there are customer complaints that the seat belt buckle: closes poorly, is jammed, or is sluggish. Test by
inserting and releasing the seat belt tongue.
Do not submit belt buckle replacement under warranty where there are signs of breaking and entering or other types of vandalism.