What does it mean when the yellow coolant temperature light stays on in a Mercedes-Benz C260?

1 Answers
OErin
07/30/25 4:20am
Mercedes-Benz C260's continuous illumination of the yellow coolant temperature light indicates that the coolant temperature is not within the specified range. The coolant temperature light is designed to display the temperature of the coolant in the vehicle's engine, primarily in yellow. Some models without a coolant temperature gauge use the color of the indicator light to show the coolant temperature status. Here are the details: 1. Blue: A blue indicator light signifies that the coolant temperature is too low, while turning off indicates normal temperature. 2. Red: A red indicator light indicates that the coolant temperature is too high. Generally, if the light stays on or flashes after starting the car, it means the coolant temperature has exceeded the specified value.
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