Mizuno

So last week the NOVA area got a nasty snow storm smack in the middle of rush hour. It took me 7 hours to get home from a normal 45 minute ride. I did not go over 5 mph for the entire trip and traffic sat still for 2-3 hours at a time. Coincidently, after that nightmare, my check oil level and top off coolant messages both came on. Do you think the 7 hours of sitting in traffic had anything to do with this or is it just a coincidence? I'm reading that the car should never need a coolant top off and that this message basically means there is a leak or something? Is this true? I bought a gallon of the MB coolant and before I top it off, do I need to mix it 50/50 or is it already mixed? I've added the Mobil 1, now need to top off coolant. If that message comes back on, I guess I gotta take it to my indy mechanic

joetarin

I had the same "top off coolant" message last week. Bought some Peak coolant, filled, done. No more message. Dont overthink it.

Mizuno

Thank you for your reply. So you didn't use the OEM Mercedes coolant? Did you do a 50/50 mix or just add the coolant straight from the bottle?

Vik888

07 car .. take it into the dealer .. still under warranty right?

Barry45RPM

Use ONLY MB Coolant on our cars. I've been told by numerous different people & Techs that this mix is really made specifically for our cars. I believe on the MB jug it states whether it has been "pre-mixed" and is ready for use right from the bottle.

I've NEVER had to add coolant over the lifetime of my 2 211s, (1st time that's happened in over 40 years of driving) so my unopened 2004 bottle is put away deep in the garage or I'd take a look at the label for you.