1987 300SDL
I’m having an issue with my coolant system dumping coolant on the ground out of the water pump. I’ve had to replace ½ gallon of coolant in the last 2 weeks. It’s getting close to the 100 degrees in the central Texas area, but I didn’t have this issue last year.

*replaced coolant tank cap
*replaced water pump 8 months ago
*replaced thermostat
*replaced radiator ( Behr)
*replaced top and bottom radiator hoses

I’ve flushed the system twice when I replaced the items.
Running the MB coolant with distilled water. I believe the water is coming from the water pump area, because the water is always in the front of the car. I’ve gone under the car and haven’t found a leak on any of the new hoses or plug in radiator hose heater. I’m not sure what would cause the water pump to open up and dump coolant (pressure / temp). I’ve noticed that my temp is just a hair over 80C (normal).

Thank you

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Professional greasecar installer
Austin TX


98 Jetta TDI with grease car kit + veg-therm (totaled)
87 MB 300SDL running on B99 / greasecar kit + 30 fphe
www.austingreaseguys.com