Hello,

I recently purchased a 1991 740 turbo since i replaced the heater hoses and the radiator. I am still losing water with no apparent leak. I can smell antifreeze when I drive the car. However, I restricted the overflow hose and upon doing so the water started seeping from the bottom of the resorvoir and underneath on the passenger. If you stand t the right of the car right at the crease of the door hinge that's where it is leaking from. lo i've replaced the resevoir and cap.


Please help!

 

Look under the car and see if it is coming out of the frame rail or coming off the transmission.Did you replaced the hoses from the heater core to the engine?If not check those.Did you replaced the hoses to the turbo if they have them? Another possibility also could be the heater core.Check these and let me know.