Notes On Coolant Level - Ah20.00-P-1142-01SD

MODEL 906 with ENGINE 642 

Fig 1: Locating Coolant Level (Shown On Model 639)

Courtesy of MERCEDES-BENZ USA

When the engine is cold, the coolant level must reach up to the marking (arrow) on the expansion reservoir.

For warm coolant the coolant level must be about 10 mm above the marking (arrow).