R&I Thermostat 272 & 273 Eng. #2 PDF

A document that provides visual and textual instructions for draining and filling coolant in engines 272 and 273 of vehicles, specifically Mercedes models 164 and 251. It includes diagrams of the engine bay and associated components, along with step-by-step procedures for handling the coolant system. The instructions emphasize safety precautions and detail the specific tools and actions required for correct maintenance. Additional documentation discusses the mixture ratio for coolant and provides torque specifications for certain parts.