2 coolant reservoirs questions
2017 C 300. We have 2 coolant reservoirs on our cars. 1 is the radiator expansion tank front passenger side. 2 is the back of the engine in the middle for the turbo per the service advisor. Both have the pink fluid in them.
Questions:
1. Are these 2 separate systems or are they connected?
2. If separate, is there a second water pump?
3. If separate, is there a warning light on the dash?
4. No mention in the manual about the second one.
Is there anybody out there with a knowledge of these questions. (Google, engine diagram didn't give me an answer.)
Thanks!


