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Warped brake discs - red flag?

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Looking for rational thinking!

 

Suppose you were looking at a nearly new VRS - under 5K miles and over 2 years left on warranty - which had (potential) warped brake discs. Would you consider it a red flag as an indicator of it perhaps not being driven well/higher risk of there being other problems? Or, just a case of "if it's fixed before purchased, I see no issue"? 

Are they definitely warped? Realistically you don’t know the history of ANY used car. So if it all checks out, does it matter. 

More than likely pad resin left on the discs

What is it, a Demonstrator / Ex Management car?

Just driven like some people drive cars that they do not own themselves, and some that do drive them as well.

  • Author

It was ex-Skoda UK stock/management.

It's not been confirmed that it's definitely warped - it's being looked at and rectified but that's what I was told they suspected. I've since done research on it, to understand enough that generally, it's not actually usually warped discs.

 

 

Warping a disc is hard to do...most times its actually pad residue...& the calipers on the MQB platform VAG cars have a design problem on the 288mm & 312mm front brakes...

 

Basically the groove/slot in the bracket for the pad "ears" to sit in is tight fit...& the springs on the pad ears make it even tighter...so the rear pad eventually sticks...well they both do, but the rear does more...& the front face of the disc looks ok & fine...look at the rear & its a mess with pad deposits etc..& yes several high speed stops will get rid of most..but its still not 100%.....& the rear face pads dust builds up & fills the gap between the disc & brackets which is about 1.5mm....

 

 

This has happened to mine..& I greased the slot with Mintex ceratec brake grease..which failed...so wont use that again..as I have to rip the lot off & get all new...& yes I have removed the pads & slider pins & cleaned & re-greased & done high speed stops....it really needs the disc to be pro-lath cut insitu.....but nobody up here...

Earlier in the year when I had my Scirocco R I began to get a lot of brake judder suddenly and without warning.

 

I took it to the VW garage and the front discs were diagnosed as being warped and replaced under warranty. This was a car that had done 5000 miles from new and was just under 2 years old

 

I'll never know exactly what caused it as I am very easy on my brakes, preferring where I can to take my foot off the throttle to slow down rather than brake at the last moment. It was right at the point where the freezing cold winter gave way to the heatwave we had in May so it may have been temperature related. It might have been braking for the first time in a journey with freezing cold brakes - who knows?

 

My point is that it isn't necessarily due to driving like an idiot - it can happen and was a first in 25 years of driving for me

Skoda ex stock / management means nothing it can have had 1 driver or 30 drivers.

@ near 5,000 miles / 12 months i would want an oil and filter change and they might as well fit new discs and pads all round while they are at it.

Minor service and car given some care and attention and nicely presented and performing in the stopping department.

As it is Skoda / VW got the tax break for their Demonstrator so a few quid spent to get it shifted still leaves them earning nicely.

Edited by Offski

A judder through the steering during braking could be a bent alloy wheel.

 

Warped discs is a relatively common issue, VAG's discs aren't renowned for being the best.

 

Sitting with your foot on the brake after coming to the end of the slip road can be enough, as can driving through deep puddles with hot discs.

 

Of course, the car could also have been driven to within an inch of its life from new.

 

Just one of the risks when buying a used car. At least buying from a main dealer gets you a warranty, and a far better chance of rejecting the car later if other issues materialise.

If you get the car consider getting 340 mm disks from golf clubsport - they have aluminum bells and are about (i think) 1.5 kg. lighter :)

 

I would not worry that much from the wrapped disks but would check the rims also - just in case...

13 hours ago, SlimAdy said:

Looking for rational thinking!

 

Suppose you were looking at a nearly new VRS - under 5K miles and over 2 years left on warranty - which had (potential) warped brake discs. Would you consider it a red flag as an indicator of it perhaps not being driven well/higher risk of there being other problems? Or, just a case of "if it's fixed before purchased, I see no issue"? 

 

Not ideal, but not a red flag. 

 

One reason for warped discs is as mentioned above is hot discs and water.  I once came off a motorway and onto a backroad and came to a flooded section.  Drove through it  at very slow speed and ever after (On that car) i had juddering through steering when braking.  Also I used to have a Vec GSI and drove a long distance in it, got home and washed it - I remember the steam coming off the discs as I power washed them  - they were juddery from that point forward as well.

 

If there interested in shifting the car they could do a warranty claim for disc sand pads on it.

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