Notes on coolant level - AH20.00-P-1142-01SLR

ENGINE 155 in MODEL 199 

Main circuit 

When the engine is cold, the coolant level must reach up to the marking "Min." on the coolant expansion reservoir (2) (arrow), when the engine is warm, coolant must reach up to approx. 1 cm above this marking.

Fig 1: Locating Coolant Expansion Reservoir - Main Circuit

Courtesy of MERCEDES-BENZ USA

Low-temperature circuit 

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

Fig 2: Locating Coolant Expansion Reservoir - Low Temperature Circuit

Courtesy of MERCEDES-BENZ USA