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Hot Brakes!

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Adrian5

New member
Hi all

For those of you who followed my noisy exhaust thread i finally made it out on track on Thursday (102dB) this time. Had an awesome afternoon out on track but had a worrying rhtymic rubbing noise coming from the brakes on the way home. Booked it in to OPC ***** this morning thinking i might have a warped disk or two, although a little bemused as to why after 2 10 minute track sessions. Porsche Centre comfirmed my wors fears and quoted £500 to skim them (which they strongly advised against based on how badly warped they were) so recommended new disks all round at £1900.

Thought i'd get a second opinion from a local brake specialist. After 90 mins of thorough testing and inspection they comfirmed the disks were fine. However the thin steel disks inside the two rear disks had distorted with the heat and was touching the back of the two rear disk, making the rubbing noise. A little finger pressure and it was back to normal all for £55 plus VAT. They also found a PDCC sensor hanging down right behind the rear near side disk due to a broken clip.

So not a happy camper with OPC ***** who will be getting a call tomorrow. Those of you thinking of taking your 991S on track beware of this plate overheating once parked and warping. Make sure you cool your brakes thorougly before parking up. Also worth checking the PDCC sensors are positioned correctly as the warning will reset once your cycle the ignition and will not return.

Adrian

[Edited by Admin for obvious reasons]
 
You may be referring to the handbrake mechanism.
It's definitely not a good idea to apply the handbrake following a spirited run for that reason.
On a track day, it 's a good idea to do a couple go cooling off laps before coming in, as it's better for the mechanical components, brakes etc.

Regards,

Clive.
 
Glad you enjoyed your track sessions Adrian, but shocking that you could have been facing a huge bill if it was not necessary. Always a good plan to let the car cool down before parking up on a track day, but I never use the electric handbrake anyway!
 
Do we think these stories of vast unjustified repair costs are down to individual incompetence at OPCs or gouging?
 
Probably a mix of both.

I think anyone who's owned a car for any length of time will have experienced something like this, no matter which manufacturer is involved.

Ladies, in particular, seem at risk since they are perceived as having less mechanical knowledge and therefore easier to wrong foot.

Building trust, confidence and a good relationship with your service manager is an important aspect of any vehicle ownership, but particularly so for a high performance motor.

My experience is it's better to travel a long distance for good service, than to put up with a poor quality locally.

Regards,

Clive.

 

ORIGINAL: pwebb

Glad you enjoyed your track sessions Adrian, but shocking that you could have been facing a huge bill if it was not necessary. Always a good plan to let the car cool down before parking up on a track day, but I never use the electric handbrake anyway!
Click to expand...

At the track session on Anglesey in May we were told not to apply the handbrake when we had come off the track for that reason. Let it all cool down and then apply.
 
Thanks all, that's usefull. Didn't realise it was the handbrake. Would explain why it had bent in at exactly the same place on both sides. Anyway, lessons learned. Just glad (or is that sad) that i'm experienced enough with dealers to get a second opinion. Ultimately they've done themselves out of business as i definitely won't trust them again. Especially as they were adament at just how badly warped they really were whilst missing the sensor hanging loose in front of their faces. Makes you wonder if they even took the wheels off or just span them on the hubs to feel the restriction from the warped handbrake disk.

On the flip side i'm very happy that the car survived a good thrashing around the track, albeit with some basic user error with the handbrake. Guess i had better book another one to get some education!

Adrian
 
Oh and apologies for the blatant use of dealer name. Peter, thanks for the correction - won't do it again! :D
 
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