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BarneyB Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 11-2008
Location: Blakeview, Adelaide SA
TOTAL POSTS: 183
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Re:


What I found was that speed started to increase going downhill, cancelling cruise resulted in less speed increase. The software uograde was done last year and did seem to help in speed holding on level and uphill but not downhill. Flicking the CVT into manual will give plenty of engine braking, I generally do that prior to using brakes.

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Regards,
Barney X1047 (c)

2008 ST31, CVT, Flint, Towbar, Cargo mat, Headlight protectors, Dashmat, LED kick steps. Bonnet protector
17/Aug/2011, 10:04 pm Link to this post Send Email PM   Send Private Message
 
Translucidus Profile
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X-TRAIL LEGEND
 


Date Registered: 05-2010
Location: Adelaide
TOTAL POSTS: 599
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Re: T31 Cruise control issues


Had the same result from the software upgrade emoticon much better but still not quite as good as other cars.

I agree - the T31 cruise doesn't react quickly enough at the start of a descent and does add a little to the initial increase in speed. Most irksome. It doesn't drive the car to many kms/h over the set speed though.

Hard to believe Nissan with it's incredible technology/research and experience, hasn't given the Xy a perfect cruise control. It really doesn't even match older cars.

I'm sure it's something to do with the electronic throttle and Drive-by-wire system and associated "not fast enough" computing power.

With CVT braking remember:

Brake pads $100 or so occasionally.
CVT eventual repair $9,000+.

As my driving instructor told me - "Gear box for going, Brakes for slowing" unless you are in a brake overheating situation like a really long and steep descent whilst towing. Otherwise brakes are much preferred as they are designed to slow and stop the car. Don't really understand why so many people use expensive transmission/drive train components to slow when brakes are cheap and designed for the job.

Be aware - ALL CVT power/retard goes via this:
Image

I'm making this belt's life as easy as possible as I would love it to actually last some 300,000kms emoticon

Last edited by Translucidus, 17/Aug/2011, 11:19 pm


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2007 X-Trail T31 ST-L

Xy going vertical at Bendleby Station . . .

17/Aug/2011, 10:38 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:


Drooped the car off at the dealer today to have the sat nav unit replaced and asked if there was a software update for the Series 3/4 T31 xtrails to fix cruise control problems. The service manager confirmed that there is indeed a software update available for the 2.5LT T31 xtrails and it takes about an hour to update the ECU. I asked them to have this update done.

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25/Aug/2011, 8:15 am 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: Re:


quote:

jalalski wrote:

Drooped the car off at the dealer today to have the sat nav unit replaced and asked if there was a software update for the Series 3/4 T31 xtrails to fix cruise control problems. The service manager confirmed that there is indeed a software update available for the 2.5LT T31 xtrails and it takes about an hour to update the ECU. I asked them to have this update done.



Sorry Guys,

False alarm. The service manager called Nissan Australia and they have confirmed that ALL Series 3 and Series 4 X-TRAILs already have the latest ECU software version and the cruise control should be working within 5km/hour difference which is within the allowable tolerance.

They have also confirmed that the excess speed I was getting on the run downhill is normal behavior of the CVT which can only slow the car so much using the gearing ratio, so am glad to hear its normal.

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25/Aug/2011, 2:55 pm Link to this post Send Private Message MSN Blog
 
Weasel Will Profile
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X-TRAIL NEWBIE
 


Date Registered: 12-2008
Location: NW Sydney NSW
TOTAL POSTS: 75
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Re:


Hi,

Would it be safe to assume that this problem does NOT occur in 6sp M models? I only ask as I was testing out the c/control this evening and can say it wasn't constant in maintaining speed on the slope. It did, then it didn't then it did again.

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Eddie
------------------------------------------------------------------------------------
2008 T31 TI 6spd Man. White Diamond, (+20%) Tinted Windows, Tow Pack, Cargo Bay Tray, Nudge Bar. Rear Spoiler, Nissan Bluetooth
6/Sep/2011, 10:09 pm Link to this post Send Email PM   Send Private Message
 
cooch t31 Profile
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X-TRAIL HOLIC
 


Date Registered: 06-2008
Location: Blue Mountains, NSW
TOTAL POSTS: 5966
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Re:


My CC worked perfectly in my 6 apeed manual.

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Tony X-891c

HERE is my D22 Navara
HERE is my old 2008 T31, ST Series1

7/Sep/2011, 7:11 am Link to this post Send Private Message
 
Jupitor 2 Profile
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X-TRAIL FANATIC
 


Date Registered: 01-2009
Location: Newcastle Australia
TOTAL POSTS: 318
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Re:


What I have experienced when using CC is as I start going up hill it drops to about 5k's under set speed before accelerating and then maintaining set speed, not much you can do going down hill, but the CVT does slow you somewhat, unlike my sons auto which does bugger all going down hill and I'm using the brake far more than in the Exy.

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Diamond White Series 1 T31 CVT Petrol
X-1111 (c)
Bash Plates
Towbar
Rubber Mats
TomTom GPS
Garmin Etrex 10 for Geo-caching
7/Sep/2011, 10:30 am Link to this post Send Email PM   Send Private Message
 
Weasel Will Profile
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X-TRAIL NEWBIE
 


Date Registered: 12-2008
Location: NW Sydney NSW
TOTAL POSTS: 75
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Re:


Mine is at the dealer having the 20K service as I write this. I prompted the topic this morning with the service manager who claimed he wasn't aware of any issue. But was happy to have a look at some 'bulletins' on it. Not sure where these 'bulletins' originate but have to assume they're Nissan Australia memos.

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Eddie
------------------------------------------------------------------------------------
2008 T31 TI 6spd Man. White Diamond, (+20%) Tinted Windows, Tow Pack, Cargo Bay Tray, Nudge Bar. Rear Spoiler, Nissan Bluetooth
7/Sep/2011, 2:49 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:


Eddie, your 2008 T31 needs to have a software update applied to it to fix a known cruise control problem, so your dealer should have access to the Nissan technical bulletin explaining what needs to be done. The software update takes an hour to do.

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7/Sep/2011, 3:22 pm Link to this post Send Private Message MSN Blog
 
Weasel Will Profile
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X-TRAIL NEWBIE
 


Date Registered: 12-2008
Location: NW Sydney NSW
TOTAL POSTS: 75
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Re:


Thanks Jalaski. I only wish I read this before picking it up. I asked how he went with the bulletins and surprisingly, he couldn't find any info on it. I may now have to wait until we reach NSW in a couple of weeks and try another dealer, I guess the 877kms of Hume Hwy will be a good a place as any to test it out. emoticon

Needless to say, disappointed in my service dept. (But pleased to report they finally fixed the fuel sensor issue after the second attempt))!! Something to smile about.

Last edited by Weasel Will, 7/Sep/2011, 5:39 pm


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Eddie
------------------------------------------------------------------------------------
2008 T31 TI 6spd Man. White Diamond, (+20%) Tinted Windows, Tow Pack, Cargo Bay Tray, Nudge Bar. Rear Spoiler, Nissan Bluetooth
7/Sep/2011, 5:38 pm Link to this post Send Email PM   Send Private Message
 


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