Tranny cooler voltage regulator hoses

[RIboater]

I've got a small leak somewhere on top of this small cooler located next to the alternator. I want to drop the unit and tighten things up. There are two hoses that connect with the usual BMW clips front and rear into the voltage regulator but there is one entering from the side that I can't get a good look at to see how it is connected.
Now don't laugh, but I already removed this part from my part out car and don't remember what was there and can't find this small hose to see how it goes back together. From the looks of the connector on the removed voltage regular, you just shove the hose into it with no clip. The leak isn't the two hoses with normal clips. I would see wet around them. I've been using a mirror to try to see the top with no real success.

[Podmore]

The pipe which comes from the water pump area just pushes into the regulator and is just sealed with a o-ring. No clips, just pull the regulator away from the end of the pipe.

[kkingsley930]

One of my e38s has a leak there. Upon investigation i discovered it is cracked where that pipe goes in. $105 is the cheapest iv seen an online retailer sale it for. Looking for a cheaper used one...

My leak started slow just like yours. I didnt notice the crack and figured it was an o-ring or a hose. I replaced the o-ring on the pipe and both hoses just to be safe but after putting it back on it must have cracked more cause it started gushing after that.

[RIboater]

Well if that's it I have to options. I have and extra one from my part out project as mentioned. But from your description what I could do and you also is use super glue or JB plastic weld and put a hose clamp around it while it sets. I might even try a hose clamp alone. If I can't drop the regulator I might even try a blind install of the clamp. Any boater knows there are many repairs you make by feel because you can't always see the screw, bolt or part you are working on. Just reach in or behind engines and do it blind.
Don't underestimate JB weld. I had a crack in the housing of the water jacket for the alternator. JB weld it years ago and still going.
If I am succesful with JB weld and/or clamp, I have a regulator if you need one.

[kkingsley930]

I think I found one but if it falls through and you dont need it I'll take you up on that. I thought about the jb weld and hose clamp and it may work for yours but on mine the crack goes pretty far in. My father suggested I spread the crack a tiny bit then fill it.

There are 2 (13mm) bolts holding it in. One head is facing the front of the vehicle and the second is facing the drivers side. After it drops down the plastic piece can be taken off as it is only held on by 3 star screws, I think a T30 but don't quote me on that.

Its actually a pretty easy piece to get to once you know the layout and connections of everything right there. Probably a 10 minute job to replace. With that said its at least worth a jb try but to test the leak a half gallon of water is enough. That will prevent wasting some coolant if it still leaks.

[das borgen]

One of my e38s has a leak there. Upon investigation i discovered it is cracked where that pipe goes in. $105 is the cheapest iv seen an online retailer sale it for. Looking for a cheaper used one...

My leak started slow just like yours. I didnt notice the crack and figured it was an o-ring or a hose. I replaced the o-ring on the pipe and both hoses just to be safe but after putting it back on it must have cracked more cause it started gushing after that.



thebmwpartstore.com has them cheaper... I think 83 or 84 bucks

It is, of course, OEM BMW parr because thebmwpartstore.com is in a BMW dealer

nowhere else has it cheaper OEM