GL Class (X166) 2013-2015 after facelift became GLS (X166)

Check Coolant message

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Old 09-04-2013, 10:15 AM
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2013 S350, 2021 GLS450
Check Coolant message

I'm getting this message for the 2nd time and I haven't reached 9k miles yet. Anyone else getting the "Check Coolant see Operator's manual" message. Which when you look in the operator's manual it says go see your Dealer.

The 1st time it happened the dealer said it is normal for these cars to burn coolant. I've heard of new engines burning oil, but coolant? That's new.
Old 09-04-2013, 12:17 PM
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got the same thing- its not so much burning coolant but an airbubble may have released and drops the level just enough to trigget the message- dealer will top it off.. no biggie
Old 09-05-2013, 10:42 PM
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So the 2nd dealer visit yesterday, they said "it was an air bubble". How can it be an air bubble after 9k miles? Seems like they have no clue.

Tonight, got the same message again. Woohoo!
Old 09-06-2013, 06:11 AM
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2013 GL450 (traded for 2015 Escalade), 2012 Corvette, 2014 Ford Fusion, Previous: 2007 GL450, 2011
Seems I have heard reference to coolant issue before.....I think it was that there were a number of MY13 GLS that came off the line without the correct amount of coolant......which might or might not result in "air pockets" or something that would trigger an early "low coolant" warning.
Old 09-06-2013, 06:54 AM
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Mine did the same thing at 3k miles. It's topped off though. Strange
Old 09-06-2013, 12:58 PM
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Had the same issue at 6000 miles. Dealer said that there are actually two coolant reservoirs in the car, and only one of mine was filled. Factory most likely never filled the other one. Easy fix.
Old 09-06-2013, 01:00 PM
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The obvious one is toward the back right in the engine compartment. Any idea where the second one is hidden? My dealership is an hour away so I'd rather just handle it.

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