Transmission Temp - What is TOO COOL?

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Mar 30, 2006 | 09:26 PM

#21

gpracer1

Le Mans Master

Joined: Feb 2006

Posts: 5,267

Likes: 40

From: Phoenix AZ

I have an MN6, but I think the autos you can check on the DIC?

Mar 30, 2006 | 10:10 PM

#22

Humanoid 2.0

Team Owner

Joined: Jul 2004

Posts: 124,167

Likes: 278

From: .... NJ

Cruise-In VII Veteran

St. Jude Donor '05 thru '19

Quote:

Originally Posted by C6this

This is a stupid question but how do you check your tranny temp?

It is an option on the DIC.

Mar 30, 2006 | 10:11 PM

#23

doje

Thread Starter

Race Director

Joined: Apr 2005

Posts: 11,138

Likes: 11

From: Fremont CA

St. Jude Donor '06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16-'17-'18-'19-'20

NCM Sinkhole Donor

Quote:

Originally Posted by C6this

This is a stupid question but how do you check your tranny temp?

It's an A4 / A6 feature. You can access it in the DIC.

Apr 11, 2006 | 05:16 AM

#24

J.M.G.

Instructor

Joined: Sep 2003

Posts: 100

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From: Halle / Germany

The DIC Warning is triggered @266°F (don't ask how I know)...

2002 Stock A4 Coupe running in Germany...

Last edited by J.M.G.; Apr 11, 2006 at 05:19 AM.

Apr 11, 2006 | 06:34 PM

#25

Evil-Twin

Team Owner

Joined: Mar 2001

Posts: 21,325

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From: small town in S.E Pa. PA

St. Jude Donor '03-'04

I dont have any real cool insider information on this issue, while I am an expert in many areas of a C5, this isnt one of them.... I would agree that 200 is a good number, cooler would be better to a point..., the DIC warning is not to be constrewed as anything under is ok....
I know what the sweet spot for engine cooling and oil temps are, and suspect the tranny would be similar...
190/200 coolant
200/210 oil
with lubrication to cool is as bad as too hot...obviously... @ 180 tranny oil would be lubricious enough to have the right characteristics, keeping it between 180 and 210 would be ideal... just my educated guess..no real data on this one , sorry...

Apr 13, 2006 | 05:30 PM

#26

Dirty Howie

Team Owner

Joined: May 2004

Posts: 26,345

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From: SoCal

Quote:

Originally Posted by Evil-Twin

I certainly have NO knowledge(I don't even know what the insides of a tranny look like)

........but after talking to FLT I came to understand that within reason (above 100*) cold temps are not a concern. ONLY high temps ruin trannies.

Just did a track day yesterday and my tranny temps got up to 225 and thats with a large radiator and an external cooler.

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