1989 Mercedes-Benz 560 Series 560SL 1989 Mercedes 560SL Convertible W Hard Top! Serviced! Inspected! 1-Owner Fresh local trade! Rare find! All updated 86-89 models have the advantages of the more modern 4 pot brakes. larger discs. and suspension derived from the W124 sedan. The body itself is built with a modern paint system designed to improve protection from rust. However this was not effective as models still continued to rust especially around the wheel arches. sills. jacking points. floor and front wings; especially the drill holes on which the mudflaps are mounted and the sides facing the engine bay.