motojazz

I have 2020 x253 glc, the Coolant levels full but warning light on after i drive 65km, the engine oil temperature is around 98 degree, coolant temperature is normal, brought to dealer to check twice, no leak, and pressure is ok.
anyone know what's happened

streborx

Did the dealer check the coolant level sensor?

motojazz

yes, they checked the wring under the coolant tank

streborx

So you've checked the coolant level when the engine is cold and again after you've driven far enough to get the "low" indication, and both times, the coolant level is between MIN and MAX?

motojazz

yes, I did that, i parked on a levelled ground check the coolant when engine is cold, just above the "T" thing, as the owner manual said ( manual suggest the level should cover the "T" when cold, over 1.5cm when hot). I have driven the car for 500km after the car sent to dealer to check. I found the coolant level is ok as owner manual said. i am not sure what's wrong with the sensor. the warning light is yellow temperature sign like this