Last year I had a coolant drain at the independent mercede shop n I only used blue coolant Mercedes with distilled water. After that I told him don't we need to bleed the system. He said no because it a self bleeding so I said okay. 1 years later I had a coolant light came on so I didn't have a blue coolant and they didn't have one either. They told me to use zerex green coolant so now I have green with Mercedes blue coolant. I'm worried now do I need to change it to blue? Before I changed it I'm going to check for leak. There's no way that mercede is self bleeding because couple day ago while adding the green coolant I left the cap off and after 40 mins I saw 3 bubbles and that it. Fan never came on unless I missed it (because went back to the house because it was to cold outside).
2011 e350 v6 m272
122k mileages
2011 e350 v6 m272
122k mileages