M 104 coolant loss
 

i am loosing coolant at the rate of 100 ml per 100 mls. engine is a 1994 m 104 with 80k mls. waterpump has been changed 10k ago. also changed the coolant top. no visible moisture in cabin. what's next???
thx,
reinhard

Do you see any areas with white stains? If it is MB fluid (I've read) it will leave a white trail. I have a M104 and have had to do the following: The hose to the radiator neck tightened, lower radiator hose replaced, upper radiator hose replaced and changed the cap to stop coolant loss.