Check coolant on display... only in the morning after a long rest when its cold out
Thread Starter
MBWorld Fanatic!
Joined: Oct 2005
Posts: 1,346
Likes: 14
From: North/Central NJ
GLC 63 S AMG / Corvette C8 / Jaguar SVR
Check coolant on display... only in the morning after a long rest when its cold out
Says check manual for coolant info.. or something to that effect...
What kind of coolant does our cars use? Tomorrow is X mas eve don't have time or feel like going to dealer, what can I put in and it only comes on in the morning once... rest of the day its fine..
What kind of coolant does our cars use? Tomorrow is X mas eve don't have time or feel like going to dealer, what can I put in and it only comes on in the morning once... rest of the day its fine..
MBWorld Fanatic!
Joined: Mar 2008
Posts: 3,714
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From: 1 hours drive north of Sydney Australia
2007 W204 220CDI Classic Sedan
Have a look how low your expansion bottle is .If the alarm only appears when the engine is cold, it should be OK over the festive season. If in doubt add a cup of distilled water to rid you of the alarm & then a cup of MB coolant after Christmas.
Newbie
Joined: Nov 2009
Posts: 10
Likes: 0
From: The bottom of the map
2008 Mercedes C 300 Sport
I will be honest, I think that there is a gliche in the coolant systems of all c300's. Lots of people said they have had problems with the coolant message displaying. Mine has come on multiple times. I add coolant and it goes away. about a month later it comes back on and when I check the coolant level, it is low!!!
There are no signs of a leak either. It sucks cause I have only had my car for a year and just hit 10,000 miles on it
There are no signs of a leak either. It sucks cause I have only had my car for a year and just hit 10,000 miles on it
Senior Member
Joined: Oct 2007
Posts: 328
Likes: 1
From: Reston, VA
15 E350 4Matic
I will be honest, I think that there is a gliche in the coolant systems of all c300's. Lots of people said they have had problems with the coolant message displaying. Mine has come on multiple times. I add coolant and it goes away. about a month later it comes back on and when I check the coolant level, it is low!!!
There are no signs of a leak either. It sucks cause I have only had my car for a year and just hit 10,000 miles on it
There are no signs of a leak either. It sucks cause I have only had my car for a year and just hit 10,000 miles on it
MBWorld Fanatic!
Joined: Dec 2002
Posts: 1,398
Likes: 7
If its just a small amount of liquid you need to bring the expansion bottle up to the correct mark - you can just add distilled water alone. A little water won't dilute the overall ratio in the cooling system by much, rather then having to buy the coolant just to use a few ounces of it to make a 50/50 mix.
Super Member
Joined: Mar 2009
Posts: 794
Likes: 9
From: Toronto, Hong Kong
E63S || C63 || E550 Coupe || Cayenne ||
DAMN IT!!... I read this thread yesterday and when I turned on my car this morning there it was!.. check coolant manual or something.. gahhhhhhhhhh! 
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Junior Member
Joined: Aug 2009
Posts: 40
Likes: 0
From: Melbourne, Australia
2009 Mercedes Benz C350 CDi
I have had the ongoing problem of the message appearing for some weeks. Mercedes Benz have had one go to locate the problem, and having another go on the 30th. It is an electrical / sensor problem I think. They are starting to think that too. Mine appears at various stages, never when cold. Always when at running temperature. I will keep you informed as to the progress after the 30th Dec.
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Senior Member
Joined: Feb 2008
Posts: 323
Likes: 0
From: New England
CLS63
My C was just in for service B last week. Once it got cold I started to get the message too. When I checked the fluid it was up to the FULL line. When I picked it up from service the advisor told me it was low. Unfortunately, he also told me I have a bent wheel. God I hate New England roads !!
