Gearbox heat exchanger help.

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DieselPete

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Joined
Dec 20, 2015
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87
Car
Mercedes ml 270 - BMW330d
As iv not long rebuilt my trans i wanted to make sure i dont suffer the glycol issue so decided to check out what type of cooler it has, i followed the pipes to the cooler and its not what i though it would be, as i was led to believe the trans cooler runs through the radiator but mine runs to a heat ex-changer bolted to the back of the oil filter housing, i checked and double checked. Now is this type of cooler prone to failing causing glycol issues? if supplied a picture where you can just see the silver finned behind filter housing, it also has 2 water pipes running through it. From what iv read this is normally for cooling the engine oil but my trans pipes definitely run to it. thanks again.

 
Does anybody know why this type of cooler was changed to the radiator type? I cant find any info on it
 

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