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

WARNING: This page does not describe the selected car, but rather 203 other vehicles, including the 2020 Mercedes-Benz SLC300, 2020 Mercedes-Benz SL550, 2020 Mercedes-Benz SL450, 2020 Mercedes-Benz S65 AMG, and 2020 Mercedes-Benz GLA250. However, it is still accessible from the selected car via links, so may be relevant.

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