My '90 740GL B230F 180K has sprung a couple leaks at about the same time. The mushroom gasket on the water pump failed when my son had the car and it may have overheated, but in reconstructing the event, it is likely the needle was in the red for under five minutes. After I replaced the gasket, all was well until a couple weeks and about 250 miles later when the heater stopped putting out heat and the guage went to red again--for less than a minute. A quick check revealed an empty coolant reservoir. I added almost a gallon of antifreeze mix and all seemed fine again. (Note: when refilling after gasket repair, I let the car run for at least 30 minutes until bubbles in the reservoir tank stopped. When I had to add coolant the second time, I had bubbling again.)

Now I have two fluid leaks dripping just a few inches apart from the rear of the engine. Both drips are coming off the bottom of the bellhousing. I can't find anything leaking from above (distributor, heater hoses, etc.) The oil dripping is a drop every 3 seconds or so and continues after shutdown. The coolant leak drips a little slower and also continues after engine is stopped. After 8 hours in the parking lot, it looks like a couple cups or more is on the pavement. The two pools eventually get big enough to merge into oil/coolant.

I'm guessing there is a pretty good chance my rear seal is bad, but I am having trouble with the coolant leak back there. I haven't done any head gasket tests, but for what it's worth, there's zero visible white exhaust smoke.

Sorry this is so long, but I didn't want to withhold important info. Anyone have thoughts on what's going on with my leaking engine? Wherre my coolant leak might be coming from?
Many thanks,
Swen