Here is the stock loop of tube cooler on top compared to the automatic transmission tube and fin cooler on the bottom. Guess which one works an order of magnitude better!
We checked to see if the new cooler would drop right in with no modification. Almost, but not quite.
This plastic rib prevents the end tank of the new cooler from simply clipping in place.
We cut the rib out with a pair of dykes.
It just took a few seconds to remove the offending rib.
7 comments
Hold the phone, is that a mechanical/clutch fan for the engine? Have you considered an electric one which also would free up some space in that tight area? And the added benefits of freeing up a little HP.
We have definitely considered that and is on our list of upgrades. One thing at a time though 😉
Any real data(fluid temps) before and after?
Nope. This upgrade was prompted by the leaks we found during our radiator install. So we did not go through the process of gathering before data.
Well shoot, I should have done this on my ‘02 when I replaced the radiator.
I’ll add it to the list.
Great article but you really need to include the part number for the new cooler or at least what specific year and model E39 it’s from. The photo is not clear enough to read the full part number.
Agreed. Part numbers would have been great to add to the article. FWIW, the part number shown in the pic is 0159-1042.