Please help. Low coolant light.
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MBWorld Fanatic!
Joined: Apr 2016
Posts: 1,124
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From: NW
2018 GLC 4MATIC
Please help. Low coolant light.
Hi All,
Went to mountains with family, this morning its about 18F and low coolant light come on.
Whats my options ? What is certify coolant I can use? I might find the store nearby.
Car ML350 Blutec 2014.
Thank you.
Went to mountains with family, this morning its about 18F and low coolant light come on.
Whats my options ? What is certify coolant I can use? I might find the store nearby.
Car ML350 Blutec 2014.
Thank you.
MBWorld Fanatic!
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From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
I'd put anything in there for now. You're up in the mountains on X-Mas eve, no time to be screwing around.
Oh, and Merry X-Mas
Oh, and Merry X-Mas
Thread Starter
MBWorld Fanatic!
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From: NW
2018 GLC 4MATIC
Originally Posted by peter2772000
I'd put anything in there for now. You're up in the mountains on X-Mas eve, no time to be screwing around.
Oh, and Merry X-Mas
Oh, and Merry X-Mas
Im thinking actually put nothing in there for now, and wait till I get back.
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Joined: Feb 2016
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ok, wasn't going to say anything, but water freezes at 32 degrees. if there isn't enough coolant in the reservoir to dilute to a safety point well below that, you'll risk cracking the res tank. just saying. good luck, ron
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Only add coolant that has been premixed
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be found
in the Mercedes-Benz Specifications for Service
Products, MB BeVo 310.1, e.g. on the
Internet at http://bevo.mercedes-benz.com.
Or contact a qualified specialist workshop
copied out of my manual. 2016 gle 350 4matic. there is a website in the text. ron
with the desired antifreeze protection. You
could otherwise damage the engine.
Further information on coolants can be found
in the Mercedes-Benz Specifications for Service
Products, MB BeVo 310.1, e.g. on the
Internet at http://bevo.mercedes-benz.com.
Or contact a qualified specialist workshop
copied out of my manual. 2016 gle 350 4matic. there is a website in the text. ron
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From: Ft. Lauderdale Area, USA
2015 ML 350
Best idea. These low coolant sensors are very sensitive and will indicate low even if you're a tiny bit "low". I'd never "Put anything "in it because once you contaminate it with the wrong coolant, the cooling system will be forever somewhat compromised.
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From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
Do not top up with anything except OEM MB coolant that is specific to your vehicle. The coolant has various seal conditioners, water pump lubricants, anti-deposit, anti-oxidation and anti-bacterial additives and was formulated to work with and protect the various materials present in the cooling system in your particular car based on the model and production date. MB has two different coolant formulations which are not interchangeable (one is pink and the other blue in colour), both of which are different from the generic stuff sold at gas stations or stores. Adding a different coolant or distilled water will contaminate and permanently damage the system.
The coolant level sensor is pretty sensitive so unless the expansion tank is completely empty when the engine is cold, you can continue driving it until you are able to get to a dealership where they will most likely top it up for you with the correct coolant without charge.
The coolant level sensor is pretty sensitive so unless the expansion tank is completely empty when the engine is cold, you can continue driving it until you are able to get to a dealership where they will most likely top it up for you with the correct coolant without charge.
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Joined: Jan 2017
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2023 GLE 53 AMG
Interesting enough, I have got the check coolant indicator the last two morning startups when it has been in the teens. I checked it and it is NOT low...wondering if this is an issue with this platform...with the sensors that is. I have a bluetec BTW,
MBWorld Fanatic!
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From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
Liquids expand/contract with temps. If your levels were borderline during warmer weather, that's probably why your sensors are going off like X-Mas lights. Heck, mine may very well do it when we get back up north in a coupla weeks. I heard temps were down to -16*F in Montreal and headed for even lower.
Poor ba$tards
Poor ba$tards
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ML350
Mine's been telling to check the coolant level, and the expansion tank is nearly full, so it appears that the level sensors are EXTREMELY sensitive and react to even the slightest change in level in the tank.
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From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
Take the cap off and look straight down into the expansion tank - if you can see what looks like a tiny little plastic square sticking up above the coolant level, you're too low for the sensor. That little plastic square is the proper fill level mark. It needs to be covered by the coolant.
