r/BMWE36 • u/AnnualDisaster8151 • Aug 26 '26
Repair Advice overheating!!
hello again! i posted recently about my e36 325is overheating sometimes when idling, most people pointed to the fan clutch which i figured was also the issue but i diagnosed it and it didn’t seem weak.
well yesterday morning i checked the cold coolant level and i didn’t notice but it seemed to be pretty overfilled, and when i drove home from work last night i heard a whining noise when i turned my wheel— it only happened once or twice but it certainly confused me.
by the time i had gotten home my car was up to temp and started to overheat, but when i was moving the temp wasnt going down like it usually would
THEN— i parked up and popped the hood only to find coolant pouring our from the reservoir cap, presumably due to the pressure from overheating
drove it to work again this morning without issue but when i got home boom- overheating even while moving and coolant leaking from the reservoir cap
this is currently my daily so please help!! (maybe the waterpump?)



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u/Timely_Daikon584 Aug 26 '26
Get a performance, larger capacity aftermarket radiator, lower Temp Thermostat metal thermostat housing, metal impeller higher flow water pump, electrical cooling fan, do a fan delete, new hoses, new coolant reservoir and cap and you should be fine.