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      12-16-2014, 05:58 PM   #1
Andrewah05
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Radiator Leak?!

What up forum,

My trusted indy said that my radiator is leaking, seen the drops on my driveway, only option is too replace. Was wondering what are my other options, i asked for a rebuild and only God knows if their lying or not but, they said that its not worth it, not sure how these things leak or if its a common issue. Any help would be appreciated

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Drew


*Indy said my only option was too replace
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      12-16-2014, 08:20 PM   #2
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Anyone?
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      12-16-2014, 09:06 PM   #3
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You buy new radiators when they leak.
If you don't buy OEM and buy a remanufactured one you're essentially buying a rebuilt radiator.

Most radiators aren't terribly hard to replace, not sure about our cars though.
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      12-16-2014, 09:07 PM   #4
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I haven't heard of too many. Not that hard of a job, a replacement is like 400$ ish online I think, Mishimoto makes an upgrade replacement for around $700 I think.
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      12-16-2014, 11:16 PM   #5
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Get a new radiator. Can't be difficult to put in. I just replaced one in my Acura, and it was very easy. But what I discovered is that not all after-market radiators are the same. You get what you pay for.
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      12-16-2014, 11:18 PM   #6
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Awesome thanks bros
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      12-16-2014, 11:22 PM   #7
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are you sure it's not the shitty drain plastic drain valves on the bottom of it that have failed? they can be removed and replaced.

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      12-17-2014, 07:30 AM   #8
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I agree with Mike. Have the drain valves checked for leaks first. The blue screw is about $1, your radiator may have two drains. Also while the design of the radiator mounting makes it easy to remove, the design of the hose connectors is an entirely different story. After any decent amount of mileage they are almost impossible to remove. At 237K I replaced all of the cooling system hoses. I ended up cutting the upper and lower radiator hoses, tying the radiator down to my work bench, and I had to use two very large screw drivers to pop off the connectors. The over-complicated BMW hose connector design is about the most god-awful invention man kind has come up with. Some engineer at BMW must have designed them as thesis paper for his doctorate. - Sorry, drifted there for a second...

The point is make sure the shop knows what they are getting into and be prepared for some extra costs if the hoses need to be cut to get the old radiator out.
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      12-17-2014, 09:37 AM   #9
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Quote:
Originally Posted by Efthreeoh View Post
I agree with Mike. Have the drain valves checked for leaks first. The blue screw is about $1, your radiator may have two drains. Also while the design of the radiator mounting makes it easy to remove, the design of the hose connectors is an entirely different story. After any decent amount of mileage they are almost impossible to remove. At 237K I replaced all of the cooling system hoses. I ended up cutting the upper and lower radiator hoses, tying the radiator down to my work bench, and I had to use two very large screw drivers to pop off the connectors. The over-complicated BMW hose connector design is about the most god-awful invention man kind has come up with. Some engineer at BMW must have designed them as thesis paper for his doctorate. - Sorry, drifted there for a second...

The point is make sure the shop knows what they are getting into and be prepared for some extra costs if the hoses need to be cut to get the old radiator out.
I thought the connectors were genius. Mine popped off super easy once you pry the clip up. I had to replace the upper hose and although the connectors are good they are unnecessary and over engineered a regular hose with hose clamps would have been just fine. Also a regular hose is 15$, my replacement upper rad hose was $110.00.
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      12-17-2014, 09:44 AM   #10
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I have a leak myself on the passenger side where the rad connects with he plastic sides.

It was a guessing game until I pulled the bottom shield off and took a look.

Gotta get her replaced.
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      12-17-2014, 09:53 AM   #11
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Quote:
Originally Posted by KeepRidingDirty View Post
Also a regular hose is 15$, my replacement upper rad hose was $110.00.
So did you use a cheaper hose, or go OEM?
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      12-17-2014, 12:11 PM   #12
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Quote:
Originally Posted by Efthreeoh View Post
I agree with Mike. Have the drain valves checked for leaks first. The blue screw is about $1, your radiator may have two drains. Also while the design of the radiator mounting makes it easy to remove, the design of the hose connectors is an entirely different story. After any decent amount of mileage they are almost impossible to remove. At 237K I replaced all of the cooling system hoses. I ended up cutting the upper and lower radiator hoses, tying the radiator down to my work bench, and I had to use two very large screw drivers to pop off the connectors. The over-complicated BMW hose connector design is about the most god-awful invention man kind has come up with. Some engineer at BMW must have designed them as thesis paper for his doctorate. - Sorry, drifted there for a second...

The point is make sure the shop knows what they are getting into and be prepared for some extra costs if the hoses need to be cut to get the old radiator out.
So your original rad hoses and the connections they made to rad lasted 237k and you're complaining about how bmw does it?
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      12-17-2014, 01:50 PM   #13
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Quote:
Originally Posted by Miller335 View Post
So your original rad hoses and the connections they made to rad lasted 237k and you're complaining about how bmw does it?
Yes. A simple hose clamp (which they use on the water pump in 2 places) would have sufficed. There is no need for a complicated plastic hose connection that needs precision molding, an internal o-ring, and a spring clip, which at the end of it all is CONNECTED TO THE HOSE BY A PERMANENT HOSE CLAMP ANYWAY. But I digress...

Last edited by Efthreeoh; 12-17-2014 at 01:55 PM.
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      12-17-2014, 01:55 PM   #14
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Quote:
Originally Posted by NGEE View Post
So did you use a cheaper hose, or go OEM?
I got the OEM replacement . By regular hose I mean standard hose with a regular hose clamp rather than the OEM connector. Not sure a regular hose and hose clamp would fit with these BMW connectors.
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      12-19-2014, 02:16 AM   #15
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Holy shit, i did not know about those drains, thanks for posting that will double check, will keep you homies posted on how it goes down, if my indy lied somebody gonna get a hurt real badd
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      12-19-2014, 02:47 AM   #16
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another thing to consider is that if it is in fact the radiator and not the drain plugs you can always have your current one rebuilt.

I had the same issue on my old car (a Lexus IS300). where i had developed a crack on the plastic portion of the radiator. Instead of buying the $700+ OEM radiator i looked for a local radiator specialty shop. Long story short they were able to replace the plastic end, completely recondition the aluminum core and clean everything up to the point where to me it appeared to be brand new. I don't recall exactly how much i paid but it was either $100-$125.

Of course i did all the labor which wasn't too bad actually and i ended up saving at least $575 on parts alone. To this day that rebuilt one is still running strong with something like 50-60k miles on it since the rebuild.
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      12-19-2014, 03:06 AM   #17
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Quote:
Originally Posted by lookalikehuuh View Post
another thing to consider is that if it is in fact the radiator and not the drain plugs you can always have your current one rebuilt.

I had the same issue on my old car (a Lexus IS300). where i had developed a crack on the plastic portion of the radiator. Instead of buying the $700+ OEM radiator i looked for a local radiator specialty shop. Long story short they were able to replace the plastic end, completely recondition the aluminum core and clean everything up to the point where to me it appeared to be brand new. I don't recall exactly how much i paid but it was either $100-$125.

Of course i did all the labor which wasn't too bad actually and i ended up saving at least $575 on parts alone. To this day that rebuilt one is still running strong with something like 50-60k miles on it since the rebuild.
Hate to feel like i always rely on what my indy says but they said it would cost more, and tbh I considered it right away and i am still looking for a shop that could do that, not many i know around my area
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      12-19-2014, 03:07 AM   #18
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Quote:
Originally Posted by Wolf 335 View Post
I have a leak myself on the passenger side where the rad connects with he plastic sides.

It was a guessing game until I pulled the bottom shield off and took a look.

Gotta get her replaced.
Mine is leaking from the exact same spot, where you taking it to get fixed, or you diying
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      12-19-2014, 06:28 AM   #19
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I just replaced one in my Acura, and it was very easy.
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      12-19-2014, 07:27 AM   #20
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+1 for drain valves, thought I had a leak in my '94 325i. I got about a half a turn and snugged it up.
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      12-23-2014, 02:31 AM   #21
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Thought id give you guys an update since you guys helped me out, ended up finding a front line radiator from a buddys part shop for 200 Canadian, when it comes in I guess ill judge how hard it is for me, been looking at diy's and theres some good vids on youtube, if the labor from a shop isnt to bad then i might just get them to do it. Thanks again for all the help again fams
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      12-23-2014, 09:24 AM   #22
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Quote:
Originally Posted by Andrewah05 View Post
Mine is leaking from the exact same spot, where you taking it to get fixed, or you diying
I will take it to RMP. Already spoke to Rocco about it, he knew what the issue was before I even looked at it.

I been wanting to have it done for a few weeks now, but the timing with work is a bit off. making it difficult to bring the car in.
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