2014 ML350 Bluetec coolant
Thread Starter
Junior Member
Joined: Nov 2012
Posts: 36
Likes: 3
2016 GL350
2014 ML350 Bluetec coolant
I am having a message on my ML Check Coolant. I see it is a bit lower than what the manual calls for. Looking at the coolant color, it appears that some green color may have been added to the Blue color. I have had the ML for about a year and a half. My question is should I top it off? If so, what color should I use? Or should I flush it and use the Green color, or the Blue color?
Thanks for your help.
Thanks for your help.
MBWorld Fanatic!
Joined: Jan 2013
Posts: 3,745
Likes: 811
From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
Mercedes uses a proprietary coolant. You should take it to Mercedes and have them change it with the correct one for your car.
Thread Starter
Junior Member
Joined: Nov 2012
Posts: 36
Likes: 3
2016 GL350
SKU: 128107-Q1030004
Last edited by srh; Oct 29, 2018 at 06:38 PM.
MBWorld Fanatic!
Joined: Apr 2016
Posts: 1,124
Likes: 205
From: NW
2018 GLC 4MATIC
Originally Posted by srh
I am having a message on my ML Check Coolant. I see it is a bit lower than what the manual calls for. Looking at the coolant color, it appears that some green color may have been added to the Blue color. I have had the ML for about a year and a half. My question is should I top it off? If so, what color should I use? Or should I flush it and use the Green color, or the Blue color?
Thanks for your help.
Thanks for your help.
Past winter I had low coolant light, went to dealer and got the whole gallon for $29, probably could add just distilled water.
Picture attached.
MBWorld Fanatic!
Joined: Jan 2013
Posts: 3,745
Likes: 811
From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
Mercedes only uses two of them - one is pink and the other blue, so that would be the correct one.
However, if the color is anything but pure blue, chances are some "generic" green coolant was added at some point and you need get it completely flushed and changed ASAP before it causes more damage. The Mercedes coolant is designed so that it does not react with the various materials and components in the cooling system, whereas generic coolant will definitely cause oxidation and premature failure in a bunch of components (seals, gaskets, water pump, radiator etc). You don't want it eating through your rad or creating solid deposits which then start floating around... get it changed.
However, if the color is anything but pure blue, chances are some "generic" green coolant was added at some point and you need get it completely flushed and changed ASAP before it causes more damage. The Mercedes coolant is designed so that it does not react with the various materials and components in the cooling system, whereas generic coolant will definitely cause oxidation and premature failure in a bunch of components (seals, gaskets, water pump, radiator etc). You don't want it eating through your rad or creating solid deposits which then start floating around... get it changed.
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
