1985 Mercedes-Benz 300 "losing engine coolant visible leaks" Questions

losing coolant and see the coolant boil in the expansion tank. Could it be the fan clutch? I have turned it by hand and it did turn about 1/4 of a turn then stopped. auxilary fans come on when temp is

...losing coolant to the outside world it should be visible as seepage or drops on the ground under the car. If these signs are not apparent, an internal loss is possible via a leaking head gasket etc., ...

...losing engine coolant no visible leaks. advised that coolant not going into oilpan or into cylanders. fluid level drops at low speeds but not at highway speeds--have had to add 13 lites over 2 and a ...

...COOLANT WITH NO VISIBLE LEAKS. I LET IT IDLE FOR AN HOUR AND NO LOSE OF FLUID BUT WHEN I DRIVE 20 MILES LEVEL IS NOTICABLY LOWER Its possible that you have any internal engine leak... check white ...

coolant if the engine was overheating - or, as you say - a leak. It's probably a faulty temperature sending unit - these are common failures. You actually have nothing to worry about. The unit sends a

losing antifreeze but there are no visible leaks, even under pressure?? the system has been pressure tested with no leaks, there is no antifreeze in the oil pan or transmission. Usually means you have

...losing water SOUND LIKE HEAD GASKET LEAK.CHECK ENGINE OIL FOR SIGNS ANTIFREEZE CONTAMINATION..OIL WILL LOOK LIKE MILK SHAKE.IF USING WATER IT EVAPORATES AT 212 DEGREES. ENGINE COOLANT TEMPERATURE CAN ...

...Engine light never goes out. Coolant is clean. Car just loses oil like a siv. sort of bandaid fixing it with top ups every week to keep the lifters from clicking. The only thing to do is try some ...

...for a leak.  If you don't see a leak then either you have a leak where you cannot see it - like a heater core - or you are losing it internally thru the engine (like a bad head

...losing cooloant but i do not see any visible leaks. check engine oil for over full level and for discoloration of oil indicating coolant in oil also check inside floor of car to see if heater core is ...