Member
So, I just noticed this leak under my car after it has been sitting for a little over an hour (which made a pretty significant puddle). My lower radiator hose, my thermostat and housing, my water pump, and every other coolant related thing you can think of has been replaced. Is it time to replace the final piece of my cooling system that hasn't been changed yet?20210117_173846.jpg20210117_173704.jpg20210117_173715.jpg20210117_173829.jpg
Member
Entirely possible. I had a hairline crack on the side (plastic) of the radiator in my old 530i. In another experience on another car, the plastic petcock valve (drain plug) became so brittle that it disintegrated. Best thing would be to check the sides of the radiator first.
1989 (10/88) 202k E34 535i/5 Schwarz/Natur
1989 165k E34 535i/5 Schwarz/Natur (Gone)
1989 220k E34 535i 3.0 M60 Swap Weiß/Schwarz (Gone)
1988 159k E28 528e Schwarz/Pearl (Gone)
1985 270k E28 525e Import Arktisblau/Blau (Gone)
1987 125k E24 L6 Schwarz/Natur (Gone)
1987 210k E30 325is Delphin/Beige (Gone)
1985 190k E30 325e Alpinblau/Beige (Gone)
Jbird
Of course something is leaking get a flash light and look
Member
I know something is leaking, I just took pictures of it.
Member
What does the fluid smell like? What color is it?
If you suspect a bad radiator you could do a simple pressure test to find the leak. Or a visual inspection might be enough, look around with a flashlight.
90,700 miles 1992 BMW 735iL Azure Blue Metallic with Silver Grey leather interior ‣My car ‣My YouTube channel
Member
It's definitely coolant. Could it be a radiator or could it be my oil cooler?
Member
Probably not the oil cooler if what you are seeing is definitely coolant.
90,700 miles 1992 BMW 735iL Azure Blue Metallic with Silver Grey leather interior ‣My car ‣My YouTube channel
Member
My radiator leaked in my 535, its got a summit aluminum radiator and im very happy. Not bad for $180...
Sent from my LG-US998 using Tapatalk
Member
Update: It was my radiator. Swapped it out for a Nissens yesterday and it's running like a champ!
MORΩN ΛABIA
BMW CCA Member
Details, please. Part number? Country of origin?Originally Posted by bimmer@15
Member
Its american but i had to do some trimming, its a big turbo car so i felt it was nesicary but they have smaller ones. Its just the in house brand so "summit racing aluminum radiator" and they have a bunch of different sizes
Last edited by bimmer@15; 01-22-2021 at 01:53 AM.
MORΩN ΛABIA
BMW CCA Member
$180 for a US-made alu radiator is very interesting. Please post a thread with fitment details.
Member
US, OEM part numbers are 17002244908, 17002245228, 17112242138, 17112243445, 17112244908, 17112245228, 2242138, 2243445
1995 BMW 540i
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