Vacuum Diagrams: Introduction

NOTE: Information for CL55 5.4L V8 (engine 113.982), CLK55 5.4L V8 (engine 113.984), E55 5.4L V8 (engine 113.980), ML55 5.4L V8 (engine 113.981) and S55 5.4L V8 (engine 113.982) is not available from manufacturer.

This article contains underhood views or schematics of vacuum hose routing. Use these vacuum diagrams during the visual inspection. This will assist in identifying improperly routed vacuum hoses, which cause driveability and/or computer-indicated malfunctions.

Fig 1: Vacuum Diagram (2001 2.3L 4-Cylinder Supercharged Engine 111)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 2: Vacuum Diagram (2001 2.6L V6 Engine 112 & 3.2L V6 (C320) Engine 112)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Fig 3: Vacuum Diagram (2001 3.2L V6 (Except C320) Engine 112, 4.3L V8 Engine 113 & 5.0L V8 Engine 113)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.