Coolant question
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Joined: Dec 2020
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From: 122W, 37N
2016 E350 4Matic wagon, 2019 Ford Expedition, 2019 Chevy Bolt EV
do not mix those two.
325.0 was used on cars up to manufacturing date of April 2014. 325.6 was used on everything newer.
Mercedes says you can use 325.6 on older cars (after thorough flushing), but you can NOT use 325.0 in newer ones. Caveat Emptor.
Note 326.0 and 326.6 are ready mix, already diluted 50-50, while the 325.X fluids are concentrates that must be mixed 50-50 with water.
325.0/326.0 are blue-green, this fluid is known generically as G48
325.6/326.6 are pink. This fluid is equivalent to G40...
note, you can NOT rely on the color across different brands of coolant.
the big difference is, 325.6 / G40 does not have any Borate or 2-Ethylhexanoic Acid in it. 325.0 does.
here's all the coolant related Mercedes specifications,
https://operatingfluids.mercedes-ben...ory/coolant/en
this is which spec to use for what engines...
https://operatingfluids.mercedes-ben...sheet/320.1/en
here's a list of 325.0 coolants
https://operatingfluids.mercedes-ben...sheet/325.0/en
here's a list of 325.6 coolants
https://operatingfluids.mercedes-ben...sheet/325.6/en
usually available in the USA is ...
Zerex G 48 - 325.0
Zerex G 40 - 325.6
DO NOT confuse these with the very common Zerex G05 in the gold jug, this meets a MUCH older Mercedes spec used in the 1980s/90s. I used this in my W124's and my 80s/90s Volvos as it met their spec perfectly.
325.0 was used on cars up to manufacturing date of April 2014. 325.6 was used on everything newer.
Mercedes says you can use 325.6 on older cars (after thorough flushing), but you can NOT use 325.0 in newer ones. Caveat Emptor.
Note 326.0 and 326.6 are ready mix, already diluted 50-50, while the 325.X fluids are concentrates that must be mixed 50-50 with water.
325.0/326.0 are blue-green, this fluid is known generically as G48
325.6/326.6 are pink. This fluid is equivalent to G40...
note, you can NOT rely on the color across different brands of coolant.
the big difference is, 325.6 / G40 does not have any Borate or 2-Ethylhexanoic Acid in it. 325.0 does.
here's all the coolant related Mercedes specifications,
https://operatingfluids.mercedes-ben...ory/coolant/en
this is which spec to use for what engines...
https://operatingfluids.mercedes-ben...sheet/320.1/en
here's a list of 325.0 coolants
https://operatingfluids.mercedes-ben...sheet/325.0/en
here's a list of 325.6 coolants
https://operatingfluids.mercedes-ben...sheet/325.6/en
usually available in the USA is ...
Zerex G 48 - 325.0
Zerex G 40 - 325.6
DO NOT confuse these with the very common Zerex G05 in the gold jug, this meets a MUCH older Mercedes spec used in the 1980s/90s. I used this in my W124's and my 80s/90s Volvos as it met their spec perfectly.
MBWorld Fanatic!
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From: V E G A S
1922 Ford Model T / no OBD
I found a note some time ago, that those coolants are mixable, but since they come in different colors, I still would do good flush.
Get 5-6 gallons of distillate water , drain, refill, drive something, repeat till water comes clean and then refill with proper coolant mix.
Get 5-6 gallons of distillate water , drain, refill, drive something, repeat till water comes clean and then refill with proper coolant mix.
Thread Starter
Newbie
Joined: Sep 2016
Posts: 9
Likes: 3
E250
I found a note some time ago, that those coolants are mixable, but since they come in different colors, I still would do good flush.
Get 5-6 gallons of distillate water , drain, refill, drive something, repeat till water comes clean and then refill with proper coolant mix.
Get 5-6 gallons of distillate water , drain, refill, drive something, repeat till water comes clean and then refill with proper coolant mix.
MBWorld Fanatic!
Joined: May 2012
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From: Pepper Pike Ohio
24 GLS580 '23 E450 4matic 12 E350 4Matic
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2016 E350 Sport
