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BIGAL5 Profile
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Date Registered: 06-2006
TOTAL POSTS: 15
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Transmission Cooler


As a newby to the Forum can anyone help, Im towing a Caravan to West Ozz for six weeks and I would like to fit a trans cooler to my 2003 auto X-trail, My Nissan dealer says the Exy dosnt need one and Nissan dont list a cooler in their parts books. Has anyone fitted one, if so to which Trans line did you use, any info would help.
14/Jun/2006, 9:38 pm Link to this post Send Email PM   Send Private Message
 
BRETT72 Profile
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Date Registered: 10-2005
Location: Orange. NSW.
TOTAL POSTS: 1999
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Re: Transmission Cooler


Al,
 
 Try this LINK for all your needs. Exactly what you are after.

 Come on mate, you can't beat us that easy. Try again. Told you we were good. emoticon

Last edited by jalalski, 10/Nov/2008, 3:07 pm


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BRETT72 - X235

14/Jun/2006, 9:48 pm Link to this post Send Email PM   Send Private Message MSN
 
BIGAL5 Profile
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Date Registered: 06-2006
TOTAL POSTS: 15
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Re: Transmission Cooler


Thanks BRETT72,I had seen these pictures on the forum, what im after is which cooler line at the radiator is the return line to the trans, I cant find the info in the workshop manual and Nissans dont seem to want to help. Im only fitting a cooler as I do a lot of caravan Towing.[The Exy dose this very well}
14/Jun/2006, 10:08 pm Link to this post Send Email PM   Send Private Message
 
AKAK9 Profile
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Date Registered: 01-2006
TOTAL POSTS: 133
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Re: Transmission Cooler


Stuck my head under the Exy the other day, (with the manual in one hand) and found the take off point for a trannie cooler. I'm going to fit one soon so I'll do a DYI for it as I go. From what I saw, the worst part of the job is fitting the cooler itself. The rest looks easy.

Watch this space.
20/Jun/2006, 11:39 pm Link to this post Send Email PM   Send Private Message
 
lancie49 Profile
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Date Registered: 01-2007
Location: Melbourne, VIC, Oz
TOTAL POSTS: 109
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Re: Transmission Cooler


Hey AKAK9..........just bumpin this to the top cos I was curious how you got on with this project. Did it all go well and did ya take some pics ?

---
Lance.....X491
Gotta Pop-Top
Now I've got an EXy
2005 ST II White Auto.
13/Jan/2007, 11:35 pm Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re: Transmission Cooler


Posted by Stevo78 - Moved from another thread

Hello Fellas

First off i would like to say how great this site is, without it i dont think i would of just purchased our xtrail, she is an 06 STS Extreme with 47,000Ks.

My question is reguarding automatic transmission coolers, i have spoken to some auto specialists some say fit it, other say dont need it, one of them said he wont do it because some transmissions require the oil to be hot to change gears and having a cooler and not towing will cause problems.

Then i rang nissan serviced and asked, i will be towing a boat 1200-1400kg

They said if its under 1500kg its not required, now i dont know who to beleive as the service guy also said my gearbox wont handle anything over 1500kg towing, when it rated for 2000kg?

So now im confused and i dont know which way to go. How many of you tow regularly without a cooler?

Most of my trips will be within 30km from home to the ramp with the occasional long trip.

HELPPPPP please
thanks
steve



Last edited by jalalski, 10/Nov/2008, 5:47 pm


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10/Nov/2008, 5:43 pm Link to this post Send Private Message MSN Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re: Transmission Cooler


Steve,

You can fit the transmission cooler for added peace of mind, it won't do any damage if it's there, but in reality you have to weigh-up your options and see how frequently you drive around with the boat behind you xtrail and 1,200Kg is not a great deal of load to be causing that much stress to your transmission unless you're driving in hilly areas all the time.

The xtrail is over-rated when Nissan Australia mentioned the 2000Kg towing ability, we have seen evidence of chassis cracking when the xtrail is used to tow such heavy loads on frequent basis, some of this is directly attributed to the poor design of the genuine Nissan towbar, so to be on the safe side, never get to that limit if you don't want to discover long term problem further down the track.

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10/Nov/2008, 5:51 pm Link to this post Send Private Message MSN Blog
 
Stevo78 Profile
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Date Registered: 11-2008
TOTAL POSTS: 3
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Re: Transmission Cooler


thanks mate its the information i was hoping for.

I mean i thought about it, nissan advertise the xtrail as great tow vehicles so you would think they would put a tranny cooler if it was required, i mean they are not that expensive.

Most of my driving will be within sydney metro once a fortnight (sunday) i would be towing the boat, once or twice a year i would take it for a 3hr drive down the coast that pretty much it. I Suppose if you use the auto properly with OD off it wouldnt change gears as much.

Is transmission damage cause my changing gears to reguarly? or does the oil heat up because of the extra weight your towing?

thanks for your help
steve
11/Nov/2008, 4:18 pm Link to this post Send Email PM   Send Private Message
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re: Transmission Cooler


quote:

Stevo78 wrote:
Is transmission damage cause by changing gears to reguarly? or does the oil heat up because of the extra weight your towing?



It's oil heat-up that causes AT failure:

quote:

At elevated operating temperatures, ATF oxidizes, turns brown and takes on a smell like burnt toast. As heat destroys the fluid’s lubricating qualities and friction characteristics, varnish begins to form on internal parts (such as the valve body) which interferes with the operation of the transmission. If the temperature gets above 250 degrees F., rubber seals begin to harden, which leads to leaks and pressure losses. At higher temperatures the transmission begins to slip, which only aggravates overheating even more. Eventually the clutches burn out and the transmission calls it quits. The only way to repair the damage now is with an overhaul -- a job which can easily run upwards of $1500 on a late model front-wheel drive car.






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11/Nov/2008, 4:28 pm Link to this post Send Private Message MSN Blog
 
Westy9 Profile
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Date Registered: 08-2009
Location: WA
TOTAL POSTS: 15
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posticon Re: Transmission Cooler


Just reading all of the above. Can I assume that my 2003 Auto X'Trail has an automatic transmission cooler already installed and will it suffice for towing. I want to tow a small caravan around Oz for a year or two approx 1200 kgs loaded weight. I would be towing with overdrive off.

Do I need to fit an extra auto transmission cooler or replace with one that has a better cooling capacity?

Thanks
Westy emoticon

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2003 Auto STR X'Trail with Hyper Roof Rail
Vic (X-139) WA
31/Aug/2009, 12:45 pm Link to this post Send Private Message
 


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