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jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re: New Front rotors?


quote:

Dranoweb wrote:

So does anyone know the minimum safe thickness for the rotors?



Their thickness is 28mm when new and the minimum allowed is 26mm. Basically they can only be machined once! A raised lip is a good indication that they need machining if there is enough thickness left in them.

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17/Nov/2008, 5:01 pm Link to this post Send Private Message MSN Blog
 
Surfie71 Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 02-2009
TOTAL POSTS: 132
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Re: New Front rotors?


Hi guys,

Just took my 06 Exy for 30K service. The car is only two years old and had low ks (I purchased it at 23K). The guy I got it from did only 10 & 20K service as opposed to every six months.

Anyway the Nissan dealer said I need new front pads and rotors and qouted me $665 fitted .
Reading thorough the thread, everyone says that even 50K is too early. What's the best indication to find out if they are correct or am I being ripped off.

When I do brake there is a slight sqick and when the vehicle reaches full stop it does sound a bit grindy. I'm %100 positive that the person that I got the car from did not abuse it, I defintly didn't in the 7K I drove owing it.

Would like to hear your advice.

Cheers
Ty emoticon

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Ty & Blythe + Ma'ayan (6yrs) & Ori (3yrs )
2006 NISSAN X-TRAIL T30 II MY06 ST-S 40th Anniversary (X1170)
Nudge Bar, Roof Racks, Floor Mats, Dash Cover, Exhaust Extension.
9/Jun/2009, 9:26 pm Link to this post Send Email PM   Send Private Message
 
NissanTaylor Profile
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X-TRAIL ENTHUSIAST
 


Date Registered: 06-2008
Location: Canberra, ACT
TOTAL POSTS: 244
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Re: New Front rotors?


depending on how good you are with tools, whip the wheels off and have a yourself, normal rule of thumb to replace pads is when the friction material is equal too or less than the thickness of the backing plate of the pad. you'll need a micrometer to measure the rotor properly.

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X-897
My Old Platium 07 STS Xtreme - Click Here to check out my mods and pics
Now own a Black C34 Nissan Stagea RS4-S
9/Jun/2009, 10:09 pm Link to this post Send Email PM   Send Private Message
 
X Temple Profile
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Date Registered: 06-2009
TOTAL POSTS: 9
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Re: New Front rotors?


Had mine changed after 38000km. I was advised that it was 0.1mm to limit. Admittedly,the wife is rather heavy footed! Kmart auto quoted in excess of $500 to have the rotors changed,some local brake maker brand name . I then bought a full set of Nissan rotors and pads on my oversea trip for less than $200 and topped up $80 to have them changed. I thought I was conned until I found so many similar cases in this forum.
15/Jun/2009, 3:48 am Link to this post Send Email PM   Send Private Message
 
Surfie71 Profile
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Date Registered: 02-2009
TOTAL POSTS: 132
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Re: New Front rotors?


Well, I just took the Exy to my mechanic (not the Nissan dealer) and asked for a 2nd opinion. They took the wheels of and I have been told that I should be ok until the next time the pads will need to be replaced.

So in about 40,000 Km which mean. The car will have 70,000 on the clock which is more reasonable for rotors to be replaced.

Now, I'm not sure why Nissan wanted me to do them now. As my warranty will expire next month I got the pads done with my mechanic and probably will keep coming back for future service. Pads were only $136 fitted so I'm pretty happy with that. I'm sure Nissan would have charged more.

Other thing that my mechanic found when taking the front right wheel was that the sway bar was disconnected. The thread had rust on it and he reckons it was off for awhile. How come Nissan didn't pick this up few weeks ago when they done my 30K service??

Thank for your reply anyway.
Cheers

Ty


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Ty & Blythe + Ma'ayan (6yrs) & Ori (3yrs )
2006 NISSAN X-TRAIL T30 II MY06 ST-S 40th Anniversary (X1170)
Nudge Bar, Roof Racks, Floor Mats, Dash Cover, Exhaust Extension.
18/Jun/2009, 8:34 am Link to this post Send Email PM   Send Private Message
 
Gresan Profile
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Date Registered: 01-2008
Location: Beechboro WA
TOTAL POSTS: 15
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Re: New Front rotors?


Hi Surfie 71
I have worked for a few car dealers (various makes) and there are a couple of reasons why they suggest changing parts that other independant mechanics will leave on your car. one is obviously revenue but the main reason is liability, when they look at items like brakes they take into account the wear already there and the time until your next scheduled service and if they determine that the brakes are ok now but will be worn out of spec prior to the next service interval they have a legal obligation to bring that to your attention, they then turn this into a sales oportunity and suggest you get it done now while you are at the dealers instead of saying you will need these changed in x amount of km's, when you would probably take the car elsewhere. Independant mechanics are not bound by this rule and can just look at the part on a given day and say its within spec even if its only got a tiny bit of life left in it.

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Greg (X-748) I had a 2004 White ST Man_ Cooper H/T's_GME UHF_Front tow hooks, currently no 4x4 but when purchased it will be a Nissan !
27/Jun/2009, 10:22 am Link to this post Send Email PM   Send Private Message
 
balio Profile
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Date Registered: 04-2010
Location: Canberra
TOTAL POSTS: 13
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Re: New front rotors - ALREADY??


Hi all,
I noticed over a year ago (at around the 10k km mark) that my 2010 T31 TS had a slight shudder in the front brakes under sustained braking, even when I was using as much engine braking as possible. Last weekend I was in the Snowy mountains, I felt it again, but much stronger. Clearly warped front discs as I could feel it quite strongly in the steering wheel. My car has only done 33,000 kms! Not impressed! >emoticon

Whilst I have taken my car offroad, I have not done any significant water fording, so I dont think the hot brakes have been quenched at any stage. I can't say I've never been through a puddle with hot brakes, but surely that should be within design specs??

I went into book the car in at Nissan and explained the problem. I was sure this would come under the warranty, considering how young the car is. The technician at the desk said this is not an uncommon fault for X-trails, and said it was a symptom of their soft-roader design - ie, the brakes are designed more for feel and less for robustness. In the end he said he could not say if the job would come in under warranty, it would depend on the severity and their opinion on if it was driver abuse. What a crock! So basically it's just my word against theirs.

My first impression is that if they mention machining and it won't be done under warranty, I might save the dollars instead toward a new set of slotted discs in the future (the shudder is tolerable for now...). Worst case I will get my local mechanic the machine them at the next service - Nissan was quoting 66 bucks a disc plus labour. They can stick that.

The car goes in on Tues so fingers crossed they will cover it under warranty. Any advice on previous situations where this has or has not come under warranty would be great, I want to be able to argue my case.

Thanks - Mark.

PS The technician mentioned that slotted brakes are not recommended for dirt use as the slots gather up dust which then acts as an abrasive on the pads - any comments on pad wear from you guys with the slotted discs?



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Balio

RIP- '06 T30 2.5 Man, EuroGas LPG, ARB nudge, RooLights, towbar, custom wheel bracket. Rolled and totalled 24/04/09, all occupants safe
T31 MY10 Diesel Manual in Platinum - Cargo barrier, towbar, bonnet protector.
11/Jan/2012, 8:18 pm Link to this post Send Email PM   Send Private Message
 
cooch t31 Profile
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Date Registered: 06-2008
Location: Blue Mountains, NSW
TOTAL POSTS: 5966
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Re:


Hi Balio,
Unfortunately Discs, pads, cluych along with wiper rubbers and tyres are known as consumables and are not covered under warranty, no matter how old or young the car is.
As Nissan said, and we all know here on the forum, the rotors are very weak and do wear down quickly.

If there is a problem with the manufacture of the disc or a material fault, then yes it would be covered, but a shudder, I don't like your chances.

Have a read on all the previous posts and see how early the rotors are wearing on other members Xy's.

Good luck.

Last edited by cooch t31, 12/Jan/2012, 5:02 am


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Tony X-891c

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

12/Jan/2012, 5:00 am Link to this post Send Private Message
 
scorpion2777 Profile
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Date Registered: 05-2011
TOTAL POSTS: 130
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Re:


I just want to say about the measurement of the disk always get a second opinion i have had on a couple occasions where the mechanic screwed the micrometer so tight that it came up under size and i knew he did it cause i measured mine before going down to him and as i was working as a toolmaker at the time and had my own micrometers.
My Exy did 160k on the original rotors and changed them just after Christmas and measured 25.8 at the top and 26.2 in the middle i replaced them with new RDA slotted ones and Bendix 4x4 brake pads and i would recommend it to anyone to get slotted disk.The rotors costed me $220 and the pads $90 well worth it.

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Hazelbrook (Blue Mountains)
Ray X-1909
Old 2002 T30 TI
New D22 Navara

12/Jan/2012, 5:58 pm Link to this post Send Email PM   Send Private Message Blog
 
saratoga Profile
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Date Registered: 07-2008
Location: Melbourne, Australia
TOTAL POSTS: 38
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Re:


Just changed the front brake pads (this is the second change in the vehicles life) and am still on the original rotors at 211K. There was a slight lip on them which I have ignored this time (see earlier post). I haven't measured the thickness of the rotors but there is no sign of any warping or pulsing and the brakes perform well. Never had any issue with them yet, and the rear pads are still original.
I live in Melbourne so it gets lots of city driving and also lots of long country trips but I'm pretty easy on the brakes. If I was a performance driver or driving in areas where there were lots of long downhill descents requiring lots of brake use I might assess the rotor thickness differently, but all good so far.

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Greg


Stock Standard Gold xtrail T30 Series I
2003 275,000km
13/May/2014, 2:49 pm Link to this post Send Email PM   Send Private Message
 


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