Notes on engine coolant level - AH20.00-U-1142-01A

WARNING: This page does not describe the selected car, but rather 42 other vehicles, including the 1999 Mercedes-Benz S600, 1999 Mercedes-Benz S500, 1999 Mercedes-Benz S420, 1999 Mercedes-Benz S320, and 1999 Mercedes-Benz CL600. However, it is still accessible from the selected car via links, so may be relevant.

Models 129, 140, 170, 202, 208, 210

Model 129:

With the engine cold, the coolant level must be at the mark (arrow) on the coolant expansion tank.

With warm coolant: Approx. 1cm above mark.

Fig 1: Locating Mark On Coolant Expansion Tank

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Model 202 with engine 111:

With the engine cold, the coolant level must be at the dividing line between of upper half (black) and lower half (transparent) (arrow) on the coolant expansion tank.

With warm coolant: Approx. 1cm above mark.

Fig 2: Locating Coolant Level Marks

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Model 140:

With the engine cold, the coolant level must be at the mark (arrow) on the coolant expansion tank.

With warm coolant: Approx. 1cm above mark.

Fig 3: Locating Mark On Coolant Expansion Tank

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Model 170:

With the expansion tank pressure cap removed (cooling system de-pressurized ), the coolant level must be at the dividing line between of upper half (black) and lower half (transparent) (arrow) on the coolant expansion tank.

The float inside the expansion tank touches the top of expansion tank.

Fig 4: Locating Coolant Level Marks

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Model 210 with engine 112, 113:

Model 202, 208 with engine 112:

With the engine cold, the coolant level must be at the mark (arrow) on the coolant expansion tank.

With warm coolant: Approx. 1cm above mark.

Fig 5: Locating Coolant Level

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.