Dewitts on C5 A4 cooling question.
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
Dewitts on C5 A4 cooling question.
Hey all,
I live in Covina near LA and the past few days it's been inexplicably close to 117 degrees outside. My baby has been running way too hot for comfort; especially the tranny fluid. So the highest I've seen on the tranny has been 220 or so and what I'd rather see is between 180 and 195 tops. Fluid thermal breakdown increases exponentially with every ~5 degrees so I kinda don't even want to drive the car, lol. I was thinking about an external tranny cooler, but wanted to see if anyone has had any luck with simply changing to a Dewitt direct fit with a TOC. My coolant has been a little higher than I'd like too so I thought I'd kill two birds with one stone.
Any help on this subject would be very much appreciated. Thanks in advance!
Also, since we're here, if anyone has one they're looking to sell, let me know. I have the late model radiator fittings on a 2001.
I live in Covina near LA and the past few days it's been inexplicably close to 117 degrees outside. My baby has been running way too hot for comfort; especially the tranny fluid. So the highest I've seen on the tranny has been 220 or so and what I'd rather see is between 180 and 195 tops. Fluid thermal breakdown increases exponentially with every ~5 degrees so I kinda don't even want to drive the car, lol. I was thinking about an external tranny cooler, but wanted to see if anyone has had any luck with simply changing to a Dewitt direct fit with a TOC. My coolant has been a little higher than I'd like too so I thought I'd kill two birds with one stone.
Any help on this subject would be very much appreciated. Thanks in advance!
Also, since we're here, if anyone has one they're looking to sell, let me know. I have the late model radiator fittings on a 2001.
Last edited by Asterios Anagnostou; Jul 7, 2018 at 07:54 PM.
Instructor
Joined: Aug 2007
Posts: 142
Likes: 20
From: East Bay California
Ive been through this before like yourself here in ca. My trans temp would frequently be in the 200’s. I purchased a b&m’s 70274 plate cooler and completely bypassed the radiator. My trans now runs much cooler. Even on spirited runs ive never seen it above 185 and thats on warm days. I put the exchanger in front of the radiator so it see’s cooler air and radiator fans pull air though it when not moving.
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
Thanks for your response. Unfortunately, I won't be able to put anything there because I'm going to be installing an intercooler there sometime soon. Those are awesome Temps though brother. Man I hate seeing it crawl its way that high.
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
Hey Jr, thanks for your response. The problem is that it goes on for long periods of time. Yesterday, it stayed like that for hours while I went about my day,running errands. Also, that's the temp at a good consistent speed on the freeway. Gosh, if I got on it and started enjoying the car, I'm sure it would go way above that temp.
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
Lol, right? Yeah man, I want to set the car up so that it never has that issue, barring me driving into a volcano. I want to drive it to Vegas and other places like that and don't want to worry about the temp. I had this issue with my 66 Lemans and had Mattson's here in California make me a radiator. It never got hotter than the fan turn on set-point. I might go ahead and go there again, but I want to see if this will do the tranny a significant help first. And I think me doing the installation of a Dewitt might end up being cheaper.
Thread Starter
Racer
Joined: Nov 2017
Posts: 269
Likes: 24
From: San Antonio
Ive been through this before like yourself here in ca. My trans temp would frequently be in the 200’s. I purchased a b&m’s 70274 plate cooler and completely bypassed the radiator. My trans now runs much cooler. Even on spirited runs ive never seen it above 185 and thats on warm days. I put the exchanger in front of the radiator so it see’s cooler air and radiator fans pull air though it when not moving.
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Instructor
Joined: Aug 2007
Posts: 142
Likes: 20
From: East Bay California
I also installed a dewitts radiator with the cool it remote mod and temps look good even on hot days. Just didnt make sense to me to run trans fluid through the radiator. If i lived in a cold climate i prob wouldnt have done it. If you can find somewhere to mount a tranny cooler that sees airflow it should work for you.
Instructor
Joined: Aug 2007
Posts: 142
Likes: 20
From: East Bay California
I thought about an EOC as well. For me with the bigger radiator and trans cooler installed and bypassing radiator, my temps all look good so i didnt see a need for it. If i regularly tracked my car then i would have gone that route for further cooling.