Menu toggle

PCCB pad warning??

C

Chris_ABZ

PCGB Member
Member
Hello,

As part of my ongoing, intermittent, annoying issues with my Macan Turbo the brake pad wear limit warning is now coming on occasionally. A few thousand miles ago I paid £300 to have the brakes cleaned as the noise they were making was crazy. And now this! The car is equipped with the PCCB option; I really like the brakes and only has 25k miles. The warning claims it is ok to drive. How long do the pads really last on these?

Thanks Chris
 
Were the pads worn when you had them cleaned? if so you'll need to replace them. Replace the anti-squeal shims at the same time. Alternatively, the cleaning may have dislodged/damaged the wear sensors and these are now shorting out and should be replaced. Rear brakes do seem to wear quite quickly on Macan - particularly when the PTV system is fitted.

Unfortunately there isn't much you can do about PCCB brake squeal. It is a performance item and sacrifices comfort for functionality. All PCCB's are noisy - it doesn't mean they are defective. Some are worse than others and it can depend on the current wear cycle too. They often go through a period of brake noise that resolves itself further down the line. The latest level of PCCB's seem much improved in this respect. You can watch Porsche's video on this here.

PCCB's work best under heavy braking from high speed. Macans in normal use, seldom attain the driving conditions these brakes are designed for. Deglazing pads and rotors using a fine abrasive can often bring temporary relief. Otherwise try some heavy braking to clean them up.

Get the brakes up to working temperature by frequent light applications, building up the heat cycle in the system, then perform several really hard stops from high speed until they become stinking hot. Once achieved, allow them to cool down normally and this should break some of the pad/rotor glaze and reduce noise levels. But you may find you'll need to do this on a fairly regular basis (or just drive a bit harder!). :ROFLMAO:

Regards,


Clive
 
So what was the outcome?
When people ask for help here, it's always interesting to hear how things went and whether their problem has been solved. It all helps the rest of us. [;)]
Regards,

Clive
 
Hello Clive,
The OPC did not note any wear when the pads were cleaned. The noise was more of a rotating noise that was evident during driving rather than the "typical" brake squeal under braking. Recently I managed a rather "spirited" drive and I have not had a brake sensor light since! Although the rotating squeal is starting to come back. I really like the feel of the PCCB brakes, I just wonder about the real benefit of having them in a daily driver. I do not want pay for pads and discs in the future. At 26k on the car, hopefully I have a few years left!
Thanks Chris
 
I think Cup cars use iron slotted discs.

I understood it’s best to replace PCCB pads at 50% if using the car enthusiastically but that might be more applicable to GT cars?
 
ralphmusic said:
I think Cup cars use iron slotted discs.

I understood it’s best to replace PCCB pads at 50% if using the car enthusiastically but that might be more applicable to GT cars?
Click to expand...



Thanks guys, very helpful.
 
You must log in or register to reply here.

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Porsche
Lockton
Pirelli
Officially approved
Oracle Finance
WEX Esso
Collecting Cars
Archant Dialogue
Back
Top