[iturbo_bmw]

Hi, I recently changed my OFH gaskets. The pipe (part # 17127540127) that connects from the radiator to the oil filter start leaking so I ordered a new one. But, now the pipe the connects to the bottom of this new pipe (part # 17127540127) is leaking!?
I can't find seem to navigate to this part on realoem.

Does anyone know the part #?? or what this pipe is for?
Anyone know how i can get a O ring for this pipe in hopes that it will be enough to stop the leak?

Appreciate the help!

[iturbo_bmw]

another pic from the bottom. its a slow leak from the connection

[Efthreeoh]

BMW has it listed as part of the HVAC system since it is a heater hose that goes to the heater core. It's P/N 64216983858. Maybe just try pulling out the o-ring and flipping it over and reseating the connector once again.

[RayLivingston]

That is the upper radiator hose! If you can't figure that out, perhaps you should not be working on your car, because you can do a LOT of damage....

It is about a $30 part. Replacing the O-ring is nuts - replace the entire hose. If that one is leaking, the others will not be far behind, so the smart move is to replace ALL of the coolant hoses, and not have to worry for another 10 years.

Regards,
Ray L.

[gbalthrop]

Originally Posted by RayLivingston

That is the upper radiator hose! If you can't figure that out, perhaps you should not be working on your car, because you can do a LOT of damage....It is about a $30 part. Replacing the O-ring is nuts - replace the entire hose. If that one is leaking, the others will not be far behind, so the smart move is to replace ALL of the coolant hoses, and not have to worry for another 10 years.

Oh Nurse -- Meds?

OP correctly identified (and ordered) a replacement Upper Radiator hose, P/N 17127540127. His question relates to the Heater Hose that attaches to the fitting of the Upper Radiator Hose, and "F30" correctly identified that part if OP wishes to replace it. F30 also correctly suggested that the photo attached to OP's second post suggests a leak, possibly from an ill-fitting o-ring, at that connector. Of course the plastic fitting may also be cracked, in which event a new hose WOULD be in order, but I certainly can't determine that from the photo, so OP has to inspect & determine. JB Weld or other expoxy is also a possible temporary fix if the plastic is in fact cracked.

While you ARE correct in suggesting that plastic hose fittings become brittle or crack after 10 years of heat cycles, particularly on the Turbo engine, it is often possible to extend hose useful life or fix a leak at a fitting by simply CAREFULLY disconnecting the plastic connector, removing the o-ring, lubricating it with petroleum jelly, and reinstalling it. Of course you ALWAYS risk cracking or breaking a plastic connector if you cannot gently twist or jiggle it to get it loose, and the way the fittings are "notched" to only install in a certain way can make it easy to get "ham-fisted" and break something if you are NOT aware of how the fitting is configured.

It is probably wise to disconnect a plastic fitting 10+ years old ONLY if you are aware of the possibility of damage during removal, and are prepared to get a replacement, but OP had already gotten into that situation, and appears to know what he is doing, at least as well as anyone who has never separated that particular fitting before.

Peace be with you,
George

[drtmvr]

Bought this on ebay. Used a couple of them so far and they worked great. Hopefully it will contain the one you need.

https://www.ebay.com/itm/BMW-Cooling...S!-1:rk:1:pf:0

[iturbo_bmw]

Originally Posted by Efthreeoh

BMW has it listed as part of the HVAC system since it is a heater hose that goes to the heater core. It's P/N 64216983858. Maybe just try pulling out the o-ring and flipping it over and reseating the connector once again.

Thanks appreciate it!!! I tried flipping the o-ring already and it did not work =(. one side looks pretty worn out. a user below gave me an ebay link to bunch of o rings to maybe i will try that before buying the whole pipe

Originally Posted by gbalthrop

Oh Nurse -- Meds?

OP correctly identified (and ordered) a replacement Upper Radiator hose, P/N 17127540127. His question relates to the Heater Hose that attaches to the fitting of the Upper Radiator Hose, and "F30" correctly identified that part if OP wishes to replace it. F30 also correctly suggested that the photo attached to OP's second post suggests a leak, possibly from an ill-fitting o-ring, at that connector. Of course the plastic fitting may also be cracked, in which event a new hose WOULD be in order, but I certainly can't determine that from the photo, so OP has to inspect & determine. JB Weld or other expoxy is also a possible temporary fix if the plastic is in fact cracked.

While you ARE correct in suggesting that plastic hose fittings become brittle or crack after 10 years of heat cycles, particularly on the Turbo engine, it is often possible to extend hose useful life or fix a leak at a fitting by simply CAREFULLY disconnecting the plastic connector, removing the o-ring, lubricating it with petroleum jelly, and reinstalling it. Of course you ALWAYS risk cracking or breaking a plastic connector if you cannot gently twist or jiggle it to get it loose, and the way the fittings are "notched" to only install in a certain way can make it easy to get "ham-fisted" and break something if you are NOT aware of how the fitting is configured.

It is probably wise to disconnect a plastic fitting 10+ years old ONLY if you are aware of the possibility of damage during removal, and are prepared to get a replacement, but OP had already gotten into that situation, and appears to know what he is doing, at least as well as anyone who has never separated that particular fitting before.

Peace be with you,
George

lol yeah he didn't read that right. Thanks! i'm going to try to inspect it more once it stops raining to make sure its not cracked. right now i think replacing the o-ring should do it.

Originally Posted by drtmvr

Bought this on ebay. Used a couple of them so far and they worked great. Hopefully it will contain the one you need.

https://www.ebay.com/itm/BMW-Cooling...S!-1:rk:1:pf:0

Thanks! that seems like a life saver. i'm going to order just to keep them around.

[Efthreeoh]

I've separated the fitting, but it was during a complete 9-hose retrofit of the cooling hoses. When I did the retrofit I tried to reuse the temperature probe in the lower rad. hose. It leaked. A new temp probe fixed the problem. The o-rings get hard is my bet.



DEAR BMW... JUST USE FRICKING REGULAR WURTH HOSE FRICKING CLAMPS