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3 litre Jag XJ on an 03 plate
jobsagooden - 28/6/07 at 06:48 AM

As above I've got one of these and it went in for it's 50,000 mile service yesterday (not so locost! )

Anyway at 20000 miles it had full rear disks and pads and I've just been told it needs them again it's never had the front disks and pads done and the garage says they won't need doing for another 5000 miles. I find it a bit odd to need 2 sets of rears in the same amount of time of only needing to change once on the front and at £359 for the job it's pricey.

Anybody else think this is odd am I being had.

cheers
PJ


speedyxjs - 28/6/07 at 06:52 AM

That is a bit strange
I have a 97 XJ and looking in its service history it has had more front brakes than rears.
Are you a member of the Jaguar Entusiasts Club? If not i will post this on their forum for you. They are quite good at problem solving.


jobsagooden - 28/6/07 at 06:54 AM

speedy

I'm not a member so would appreciate it if you could post it on there that would be great. Have you ever had problems with corrosion on the disks? thought this could be it but think I'm clutching at straws really.

PJ


iank - 28/6/07 at 07:04 AM

Is it warping rear disks or wearing them out? They should tell you why they are replacing them (indeed the old disks are yours and you can demand to take them away after replacement and check them yourself).

If warping are you driving a lot of stop start trips and using the handbrake at traffic lights/queues? On some cars thats a virtual guarantee of warping as the hot pad is pressed onto one patch of disk.

I'd expect them to automatically change pads when they change the disks.


speedyxjs - 28/6/07 at 07:06 AM

Iv actually got a sticking throttle so its wearing my disks quite badly (apparently could be ecu ) but i havnt had a problem like this.
Will post on there now and u2u when i have a reply (sometimes takes a day or two)


jobsagooden - 28/6/07 at 07:13 AM

This car is only really used for longer journeys i.e. 30 miles or more. It has an automatic hand brake so it probably comes on at times you wouldn't normally use it but can't see that effecting it all too much. The disks definitely don't appear warped.


ecosse - 28/6/07 at 07:25 AM

quote:
Originally posted by speedyxjs
Iv actually got a sticking throttle


I had the same problem with mine, turned out to be the TB gummed up, seems to be a common fault with them

Cheers

Alex


russbost - 28/6/07 at 10:02 AM

Measure the disc thickness & ask them for the Manufacturers specified minimum thickness to compare. For MoT Vosa specifically say that a disc only warrants failing if it is on the point of breaking, not a point of view I agree with!


britishtrident - 28/6/07 at 12:27 PM

quote:
Originally posted by jobsagooden
As above I've got one of these and it went in for it's 50,000 mile service yesterday (not so locost! )

Anyway at 20000 miles it had full rear disks and pads and I've just been told it needs them again it's never had the front disks and pads done and the garage says they won't need doing for another 5000 miles. I find it a bit odd to need 2 sets of rears in the same amount of time of only needing to change once on the front and at £359 for the job it's pricey.

Anybody else think this is odd am I being had.

cheers
PJ


These days with normal driving I would expect pad life to be cover 60,000 mile HOWEVER Because of ridiculouly long full service intervals most manufacturers recommend changing pads at or before 50% wear. - changing pads at 50% wear is probably a good idea anyway.

As to changing the disks unless they are rusted I suspect you are being sold a line.
Even if they aren't it is worth eye-balling them yourself or getting a small back street garage to check them for corrosion and thickness

[Edited on 28/6/07 by britishtrident]