Brake disc warranty

trophydave

Last summer I fitted a set of new front brake discs and pads to my car.These were bought from an online retailer.Nine months and 7700 miles later and the car is juddering badly when I brake.Hmm.Warped discs.I took the car to the local mot tester who put it on his brake tester and confirmed that the discs are warped and that I should return them.
I have contacted the retailer who have said I need to send the discs to them and they will send them to the manufacturer who will then decide if a warranty claim is in order.In the mean time if I want to keep using my car it means buying another set of discs.
Is this the correct way of going about this?I thought my contract was with the retailer and they should replace the parts or refund me as they are clearly faulty.

rich13348

trophydave wrote: »

Last summer I fitted a set of new front brake discs and pads to my car.These were bought from an online retailer.Nine months and 7700 miles later and the car is juddering badly when I brake.Hmm.Warped discs.I took the car to the local mot tester who put it on his brake tester and confirmed that the discs are warped and that I should return them.
I have contacted the retailer who have said I need to send the discs to them and they will send them to the manufacturer who will then decide if a warranty claim is in order.In the mean time if I want to keep using my car it means buying another set of discs.
Is this the correct way of going about this?I thought my contract was with the retailer and they should replace the parts or refund me as they are clearly faulty.

I would assume they have a right to examine the faulty product and not just take your word for it they are faulty.

Joe_Horner

rich13348 wrote: »

I would assume they have a right to examine the faulty product and not just take your word for it they are faulty.

They do. Including confirming that any fault is a manufacturing defect and not caused by misfitting (such as incorrect torquing of bolts or dirty hub faces) or misuse (such as overheating from sticking calipers or continuously driving like you stole it).

jimjames

trophydave wrote: »

they should replace the parts or refund me as they are clearly faulty.

They're not "clearly faulty", they were fine when fitted and there are various reasons why they are now juddering. Very similar situation with mine at the moment. If I can't identify issue I'll just spend £40 and get another set

facade

My [STRIKE]Renault[/STRIKE] Nissan Note will have the brakes juddering in a very short mileage If I hold it on the brake pedal for even a second. :eek:
I wrecked a brand new set in around 6000 miles driving it like it was a properly made & designed car like all the other autos I've ever had, and could actually cope with being held on the brake pedal. :mad:

Now I wear the handbrake out instead

What I think happens is a microscopic deposit from the brake pads is burnt into the surface when the pads are clamped onto a warm stationary disc, and this is enough to produce the vibration.

Certainly the juddering discs I took off were not warped in the slightest.

BeenThroughItAll

Don't just take their word for it that the discs are warped. Ask them how they know. If their answer isn't "we've used a DTI to check the runout on the discs when the wheels are rotated" then ask them to check properly.


If all they've done is literally put the car on the rollers and use the brake tester, all that will show is that there's fluctuation on one or both discs - which can be caused by plenty of other things besides warped discs.


There is only one good way to check discs for warping, and that's not it.


It is *very* unusual for 'warped discs' as diagnosed to actually be warped. More often than not it's dirty hub faces or contamination of the disc surfaces.


On some cars (particularly things like older BMW 3, 5 series) juddering under braking at speed can be due to wear in the front lower arm rear bush.

daveyjp

My current car had 8,000 on the clock when I bought it. Severe brake judder when slowing from motorway speeds. Disks were swapped under warranty at first service and 11,000 miles. Now done another 11,000 and no issues.

Strider590

Warped brake discs/rotors is a myth, probably just easier to sell to a customer than "i'm sorry, your brake pads are crap and they've deposited brake pad material unevenly on the disc", and it's certainly more profitable to change them than it is to clean them up.

forgotmyname

Warped discs are not a myth. Been there and done it.

Strider590

forgotmyname wrote: »

Warped discs are not a myth. Been there and done it.

https://www.google.co.uk/#q=brake+disc+warp+myth&spf=68

debtdebt

Although 9 months and 7700 miles isn't a long distance for a set of discs to last, it could be feasible that they've just had a good innings and are just worn. I doubt you're going to get any joy from the seller or manufacturer. Personally, I'd just get new pads and discs fitted.

You allude to fitting them yourself so at least you can save on labour and you'd just have to pay out on the parts.