Top-Up Coolant message? Help!

janedoe

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Hey everyone,

Help!

I have a 2008 ML-350. The other day I got the message "Top Up Coolant." I promptly checked under the engine and found that the coolant was actually full, but the top was not screwed on properly--it was simply just sitting on top of the coolant can. I assumed this was the reason for the message and went on my way. However, a few days later I am still getting the "Top Up Coolant" message.

Any ideas? I can schedule a trip to Mercedes, but thought I would check here first. Thanks!!
 

Xtractorfan

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S class
You should return and ask them to check the coolant and check if the message has to be cancelled by Star..
 

bigasotonuk

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C43/55 AMG 1999 / C230K 1997
Hi,
Welcome to the forum,
I expect you have lost a small bit of coolant, because of the loose cap, If it was me I would just put a small amount of water in, half a pint or less. I would imagine the low coolant warning would extinguish once level is correct but if after topping up you still get the warning, take it to MB to have it investigated.
 

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