sethgrau

I got a notification saying that I need to check my coolant level, so I will top off the coolant a bit to fill it back up. My question is which is the best coolant for my 2012 E350 Coupe? I definitely dont want to get the wrong one and mess anything up.
Thanks

CaliBenzDriver

Glad you know the importance of coolant chemistry.

Have a look at what you see in your tank:
YLW
BLU

Both of the above are interchangeable but match the color to show you care about good chemistry.

Where is the leak?? Check the plastic tank integrity is not compromised. The central seam is known to let go.

Siegmann

Pentofrost NF