ml350

Hi,

what kind of coolant fluid do I put in the reservour,

ima55r2

If the reservior is low, just add water. If you're going to change the coolant, buy the MB stuff.

Gregs210

Hi, to follow up on R2's input, if you're having to add much or more often than a couple of times a year, look long and hard for a leak (you may have to pull one of the bottom panels). Generally you shouldn't need to add coolant, so that's a potential concern.

If you live in an extreme climate (very hot or very cold) then it's not a bad idea to keep a mix of anti-freeze and water on hand for adding to the system, since otherwise it can get diluted.

If you need to buy coolant, be sure -- as R2 noted -- to use ONLY MB coolant. You can get it online from several sources for a decent discount from the dealers' price.

Take care and enjoy the ride,
Greg

ml350

Gregs210,

I live in the same state as you,

this is the first time i check the fluid since from the break-in change,

GDawgC220

Zerex G05 Coolant...approved by MB. Local autoparts should have it, Napa or Autozone.

Prices vary depending on location.