Member
I recently bought a 1998 328i. It runs well but has its issues, i got it cheap so that’s to be expected. It started overheating and i saw that the thermostat housing was cracked. I replaced the Thermostat, Housing, and Hoses. The car overheated again. Why?
shade tree mechanic
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Moved to E36 forum, did you bleed the air out of the system? Here is the info https://www.bimmerforums.com/forum/s...cooling-system
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Member
Right. These cars are notorious for heating up if not bled correctly.... exactly correctly. I once bought a cheap tstat that caused problems. The fan clutch can be tested. ... Here are some places to get info: https://www.bimmerforums.com/forum/s...hread-For-FAQs ... Even though this is Z3, many articles will apply to your car: https://www.bimmerforums.com/forum/s...ked-Questions)
Member
WhyOriginally Posted by Bitxey
Why didn't you check if the water pump is ok
Member
Is the cooling system old? Radiator can get clogged with crap... is it clean? Takes time and patience to bleed the system... try raising the front of the car up to help get air out. Cabin air in full heat, full fan while you do it.
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smokes at gas stations
Did you check the rest of the system like the water pump, radiator, fans etc?
Member
You need to do a compression test to see if the head is damaged. Read old threads on overheating.
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