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Discussion Starter · #1 ·
So can someone tell me if stock OEM Mercedes coolant is compatible with regular antifreeze coolant?


What will make me know if its the Mercedes stuff in there?


Might I just add some distilled water? ( I know I risk changing the freezing point of my coolant)
 

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Discussion Starter · #3 ·
Thanks for the link but it is still unclear.


Is the Mercedes stuff the same as zerex? I don't want to drain and refill just add. Can I use zerex in place of the Mercedes stuff to top off?
 

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How low is it and where do you live? If all you have to do is add a little, then I might just go with distilled water as you mentioned. If you live in FL and raise the freezing point from -40 to -30 who cares?

Len
2014 EV Coupe 18,000 miles
2014 EV Cabriolet 12,500 miles
 

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So my LAPS just sold me peak European blue which they say is compatible.


Anyone confirm or deny this?
The Peak coolant appears to be correct. Mercedes used to use G05, the yellow stuff, but in a service bulletin switched to G48. The blue G48 was used in older VWs and Saabs in the '90s and BMWs too, I think.

Here's the link to Mercedes 325.0 spec and you will see G48 at the bottom. To add further confusion, VW called this stuff G11 because that was a piece of the part number they used for it.

https://bevo.mercedes-benz.com/bevolisten/325.0_en.html
 
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