GL Class (X164) 2007-2012: GL320CDI, GL420CDI, GL450, GL550

antifreeze advice for my 08 gl450

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Old Jan 4, 2015 | 10:01 AM
  #1  
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2008 gl450
antifreeze advice for my 08 gl450

The reservoir currently has a yellowish looking cool I ordered from the dealer when it came it was blue I'm not going to mix but would like to know what antifreeze would be safe to mix in there being that its yellowish an all help me please
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Old Jan 5, 2015 | 12:35 PM
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It should; be blue.


Someone changed it to generic coolant.
Usually this is not a problem as most coolants today are decent, but I don't like mixing them especially if you are relying on their "Long Life" properties.


If it is not too low top up with distilled water, then change back to MB blue at the next service.
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Old Jan 5, 2015 | 06:45 PM
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Your truck requires a specific coolant. The factory fill is yellowish and you are advised to retain color for easy visual diagnostic. You can obtain it from the dealer or from your friendly Napa store under the name of "zerex g-05".

Last edited by alx; Jan 5, 2015 at 06:49 PM.
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Old Jan 5, 2015 | 07:27 PM
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Originally Posted by alx
Your truck requires a specific coolant. The factory fill is yellowish and you are advised to retain color for easy visual diagnostic. You can obtain it from the dealer or from your friendly Napa store under the name of "zerex g-05".


Where did you get that info from?


I have only found references to the factory fill being MB blue fluid.


G-05 is a suitable aftermarket replacement. (yes, it is yellow)


http://bevo.mercedes-benz.com/bevolisten/325.0_en.html
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Old Jan 6, 2015 | 05:42 PM
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My 2007 came from factory with yellow coolant.

Coolant life according to MB is 15 years.
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Old Jan 6, 2015 | 06:04 PM
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I am about 99% sure mine is blue like my '07E, but now I am going to have to look.
(Well, at least it gives me a reason to go down to the garage and put the charger on the GL since it has been sitting for several weeks)
Not that it would be like MB-USA to put in a fluid different from MB-GER for no reason other than to confuse the market.


EDIT:
Went out and looked, Well I'll be damned. It is yellow.
Seems MB lied about the factory fill.


Guessing that MB-USA decided to buy Zerex G05 because it was the same spec and cheaper than MB-Blue.

Last edited by N_Jay; Jan 11, 2015 at 11:45 AM.
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Old Jan 14, 2015 | 06:17 PM
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MB yellow predates MB blue by decades.
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Old Jan 14, 2015 | 07:19 PM
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Originally Posted by lkchris
MB yellow predates MB blue by decades.
Is (old) MB yellow the same as the Zerex-G05 (and current MB blue)?


My 07 E is Blue and my 08 GL is Yellow (hopefully Zerex-G05)
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