XTrail warped discs -warranty?

Submitted: Monday, Mar 13, 2006 at 15:23
ThreadID: 31698 Views:2549 Replies:4 FollowUps:6
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The missus' xtrail discs appear to have warped. This seems unusual considering the way it is driven (ie light braking) but there is a definite pulse on the brake pedal. There is also some vibration when driving even with new tyres and balancing. I will replace the pads and check the linkages to see if it is really the problem. Has anyone else had a pulsing or vibration problem on XTrails ?

The vehicle is still under new car warranty, and I know (some) brake parts are not covered but I thought the discs would be. Where can I find out what is covered and what isn't ? ( not sure the dealer will give me a honest answer)

Steve M

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Reply By: 120scruiser - Monday, Mar 13, 2006 at 15:33

Monday, Mar 13, 2006 at 15:33
Hi Steve
The discs haven't warped, they have DTV, (Disc Thickness Variation).
It has been very common since the abolition of asbestos in brakes a few years ago.
A few things can cause it including tight caliper slides or pistons, loose wheel bearings and in the case of slip off rotors or top hat style rotors dirty hub flanges not allowing the disc to seat properly.
Try this web site www.rdabrakes.com.au for more info. It is possible that if the wheel nuts have been over tensioned , very common by tyre fitters, that disc run out has occured.
Cheers
120scruiser
AnswerID: 160236

Follow Up By: Steve M - Monday, Mar 13, 2006 at 16:01

Monday, Mar 13, 2006 at 16:01
Thanks for that, good info to work on.

Dont suppose you know the torque value for the wheel nuts do you?

Steve M
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Follow Up By: 120scruiser - Monday, Mar 13, 2006 at 16:57

Monday, Mar 13, 2006 at 16:57
I own a workshop in NSW and I supply to my mechanics a torque fitting which is like an extension bar found in socket sets except it is made of spring loaded steel. It is rated at 110Nm or 85ft/lb. We have been using these on EVERY wheel nut for 7 years and have not had one stipped nut or stud or one siezed nut or one disc/brake shudder problem, that we honestly know of. The bar fits between the rattle gun and the wheel nut socket.
All vehicles have different settings and are surprisingly low. I am at home now but I have the full listing at work but if you work off the above tensions you won't be far out.
Believe it or not but the alloy wheels have the lowest torque settings.
Hope this helps
120scruiser
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Follow Up By: Member - John - Monday, Mar 13, 2006 at 18:42

Monday, Mar 13, 2006 at 18:42
120, just a query, where does one obtain the torque extension bar, it would be a great benefit to have one of these..............
John and Jan

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Follow Up By: 120scruiser - Monday, Mar 13, 2006 at 20:32

Monday, Mar 13, 2006 at 20:32
Hi John
I obtained them through my tool man who comes around to the workshop. He specialises in T&E Tools.
Try any big name shop like repco or Coventry Auto Parts. Either they should have it or will know what it is and should be able to get one.
I think the correct name of the piece of apparatus is a wheel nut tension bar.
I hope this helps
120scruiser
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Follow Up By: Member - John - Monday, Mar 13, 2006 at 21:05

Monday, Mar 13, 2006 at 21:05
120, thanks for that, will follow it up.
John and Jan

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Follow Up By: Member - Stephen M (NSW) - Monday, Mar 13, 2006 at 22:03

Monday, Mar 13, 2006 at 22:03
Hi there 120scruiser,thought I would ask you as you work on 4by's I have had 2 qoute's for doing the tappets on my 2.8 diesel hilux, 1st one was for $450, the next was for $240. Wont say the name as I'm not into bagging out some ones business (unless they do me wrong), but they both said special tools are required, engine must be cold there fore will have to leave it there the night before ready so they can do first thing in the morning, they say it takes a few hours to do and may or may not require shims (hope I spelt that write). Does all this sound ok to you. I will obviously take the cheaper price which is also closer to home. They told me tappets should be done every 100,000k especialy on the 2.8 as they tightnen up or something to that effect. My mate who is head tech for toyota reckons while every thing is ok leave alone but he also told me they never touch them at toyota and going by my log books and all my receipts I reckon they havnt touched them.The old girl has done 280k now and planning a trip in october so want every thing done ready,dont want any problems. What's your opinion if you dont mind me asking. Regards Steve M
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Reply By: Member - Mike R (NSW) - Monday, Mar 13, 2006 at 16:14

Monday, Mar 13, 2006 at 16:14
I had problems with warped rear discs on an NL Pajero.

They were replaced under warranty on the basis that there was only 50% wear on the original pads and there was no warping on the front discs. This indicated to Mitsubishi that there had be no abnormally hard braking.

There was no problem with the replacements.

My view is that water splashing from the front wheels onto the rear discs when they were hot caused them to warp.
AnswerID: 160237

Reply By: Member No 1- Monday, Mar 13, 2006 at 17:38

Monday, Mar 13, 2006 at 17:38
hand brakes left on overheat the disc and stuffs them up eventually giving the pulsating feeling.....swmbo is very good at it
AnswerID: 160252

Reply By: 1812 - Monday, Mar 13, 2006 at 23:03

Monday, Mar 13, 2006 at 23:03
Hey Steve,

A friend a work has an X-Trail and had a problem with the discs.

She was told the discs should be replaced after 75000 kms

Had this done and no further probs.

I thought this was unusual but !!!!!

Check with Nissan they may be a another manufactured Wear item :-(

Scott
AnswerID: 160341

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