Coolant leak under the radiator

JADEN55

MEMBER
2008 BMW 323
2.5L
6 CYL
2WD
AUTOMATIC
250,000 MILES

I have a coolant leak because underneath my car. There seems to be a leak right underneath the radiator. So I’m just wondering if it’s a corroded plastic on the bottom of the radiator or it could be housing nearby?

Wednesday, May 5th, 2021 AT 2:43 PM

1 Reply

KASEKENNY

MECHANIC
18,907 POSTS

It is hard to know for sure but it may just be a crack in the radiator.

However, here are some guides that will help figure out what the part is that is leaking:

https://youtu.be/W8kra65m15c

https://www.2carpros.com/articles/radiator-pressure-test

Once we have a better idea as to where the leak is coming from we will have a better idea what to do. I would suggest cleaning the area off with a rag and a spray parts cleaner and then pressure testing the vehicle.

Please run through this info and let us know what you find. Thanks