Losing Intercooler coolant
Senior Member
Joined: Oct 2015
Posts: 274
Likes: 84
From: Earth
C63 W204 / E63S W212 / E63S W212
Which year is the car? If facelift then it could be a rock damage to auxillary heat exchanger, ones for engine coolant ones for IC coolant. If tuned could be a leaking intercooler, they are known to leak after certain boost levels. Or piping.
Last edited by timm206; Jun 24, 2019 at 02:14 PM.
Senior Member
Joined: Oct 2015
Posts: 274
Likes: 84
From: Earth
C63 W204 / E63S W212 / E63S W212
Try taking the splash shields off to have a better look. No aux heat exchangers on ml63 seems like so thats out of the equation. Good luck.
Senior Member
Joined: Mar 2016
Posts: 341
Likes: 55
2014 E63 S model
It may be boiling out of your cap, landing on the hot V and evaporating. Look for orange residue on the hot V or around the cap. if you do a hard run open the hood and look and see if the cap area is wet.
