When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Finally pulled the build sheet on my car. It lists and "MEK" for M7 tranny, but also shows a "KNP" for transmission oil cooling system. Still not having access to the service manuals, can someone fill me in on how and where the manual tranny cooling is on the car?
Here is a picture taken of the GM Cutaway Car that is used in shows.
The horizontal radiator in this picture is used for two different purposes. If the car is an A8 the radiator is a supplemental transmission cooler in addition to the one in the rear. If the car is an M7 then it is a supplemental radiator that provides additional coolant cooling coming out of the engine oil cooler.
The M7 tranny cooler doesn’t have the fan. Wish it did.
You raise an interesting point. I wonder if it could be retrofitted and if it would help. Seems like at track speeds the fan wouldn't make a difference.
You raise an interesting point. I wonder if it could be retrofitted and if it would help. Seems like at track speeds the fan wouldn't make a difference.
Unless those scoops really aren’t that effective. I question how much airflow they really generate. A fan would also dissipate heat between sessions. The tranny holds heat like crazy. Cool down laps don’t do much to change the temps. You have to shut her down and let it sit.
Last edited by spearfish25; 11-18-2017 at 07:30 PM.
Unless those scoops really aren’t that effective. I question how much airflow they really generate. A fan would also dissipate heat between sessions. The tranny holds heat like crazy. Cool down laps don’t do much to change the temps. You have to shut her down and let it sit.
Yeah, but without the trans fluid moving through the cooler the fan won't make much difference.
Yeah, but without the trans fluid moving through the cooler the fan won't make much difference.
Doesn’t it have its own pump? It’s below it on the drivers side. For sure the car needs to be running. But if I drive the 3 miles from Sebring to the Shell station, everything cools down except the trans. That temp sits at 240F despite driving 50-60mph to the station and back. I think the fan might have decent potential to help.
Doesn’t it have its own pump? It’s below it on the drivers side. For sure the car needs to be running. But if I drive the 3 miles from Sebring to the Shell station, everything cools down except the trans. That temp sits at 240F despite driving 50-60mph to the station and back. I think the fan might have decent potential to help.
Not sure but either way I wasn't planning on leaving the car idling.
How many of us have problems with the M7 transmission temperature? I haven't had any issues. I have seen transmission temps in the 255 range which doesn't seem bad.
How many of us have problems with the M7 transmission temperature? I haven't had any issues. I have seen transmission temps in the 255 range which doesn't seem bad.
11-18-2017, 11:28 AM
M7 Tranny cooler
