I have recently read that the MB coolant you buy from the dealer is premixed 50-50 with water.

Is this true?

I just paid $31 for a gallon, and if its 50-50, I am gonna be unhappy for $31 / half gal coolant. Thats $62 / gallon!

Bought some Zerex G05 to make me feel better.

Do I have to redo my recent coolant change (as I added 50-50 distilled water to the MB product).

Dickie

00 ML320
06 325i

Anyone know if the OEM coolant is 50/50 or pure coolant?

Someone must know.

It should say on the label. if not call the dealer you bought it from.

__________________
1976 240D
1976 240D parts car
1970 220D daily driver

It's not.

__________________
Kent Christensen
Albuquerque
'07 GL320CDI, '10 CL550. '01 Porsche Boxster
Two BMW motorcycles

It is not premixed. The gallon bottle should have part# q 103 0002. At $31 I think you paid way too much.

Honda offer pre-mixed A/F but not MB.

__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
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44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator

Thanks for your insights.

I wholeheartedly agree that $31/gal for OE coolant is r@pe. But its the dealer.

That's why I picked up some Zerex G05 for the future @ $15/gal.

I avoid my local dealer for everything I can. The left rear door actuator I bought online @ $195 was $245 + tax at dealer. I chuckled and told him I would find one elsewhere.

Dickie

00 ML320
06 325i

Just bought some MB coolant from the dealership for $15. Not premixed. I could not find the correct zerex in my area.

Do you have Carquest stores in your area? They are the main distributor.