Front Brakes

Technical Forum for the Porsche Macan
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bbpxbbpx
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Joined: Sat Feb 18, 2017 1:36 pm

Post by bbpxbbpx »

Google seems to know everything and I asked him

https://www.totalcardiagnostics.com/lea ... 0the%20car.
To adjust disc brakes all you need to do is pump the brakes a few times with the engine off, start the engine, pump the brakes a few more times, and then make a few stops with the car. The disc brakes are now adjusted and will remain that way through normal use.
Ben

2019 Macan S Night Blue
1995 993 C2 Midnight Blue
2015 Macan S Agate Grey - SOLD

111rdw
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Joined: Wed Oct 21, 2020 8:42 pm

Post by 111rdw »

Nuclear Nick wrote: Tue Apr 27, 2021 6:43 am Interesting reason for changing. Pad thickness should make no difference to pedal travel as the hydraulic system compensates for wear by 'replacing' the pad material with brake fluid. If you have long pedal travel it's for another reason that should be investigated further. Reasons could be warped discs and/or sticking pistons.
Correct👍
TheTraveller
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Joined: Fri Nov 02, 2018 9:30 pm
Location: South Yorkshire

Post by TheTraveller »

Hey Ben, that's all there is to do with disc brakes. As there is no manual adjustment with them, with regards to the foot brake. There was some damn awful systems, in regards to adjusting the hand brake, with them.
But there will be some change in the feel of the foot pedal, as the brakes start to wear. There was no sticking pistons in mine, (this would show, depending on how bad it was, by veering away from the sticking side on brake application, which was not the case), and the discs were not warped, ( this would manifest itself as some judder coming throught the steering wheel, which was absolutely still and calm).
As the brakes start to wear, the point at which the pedal starts to pressurize the system is a little lower, through time. So little that it is indiscernible.
But when new brakes are fitted, it's a big extreme, and then it will be able to be felt, and noticeable as the point of bite returns further to the top.
I've overhauled brake systems, where the pedal of vehicles was nearly on the floor. And the only attention was to replace with new brakes.
If the piston(s) were sticking, it would not cause the pedal to bite lower, as this would act just like a brake pad being pressed solid against the disc, whether it was sticking in or out.
The next time new pads are fitted, make a mental note of how the brake pedal feels, before and after. I can guarentee it will be noticeably different.
Alfanut
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Post by Alfanut »

Stop digging man....
2022 Macan GTS & 718 GT4.
Past: Macan S, Audi S4 B8 Avant / Alfa 147 Q2 Diesel / Alfa 147 2.0 Selespeed
TheTraveller
Posts: 621
Joined: Fri Nov 02, 2018 9:30 pm
Location: South Yorkshire

Post by TheTraveller »

Alfanut wrote: Thu Apr 29, 2021 10:59 pm Stop digging man....
I'm not gardening. :lol: :lol:
tuizner
Posts: 41
Joined: Thu Dec 07, 2017 11:44 am

Post by tuizner »

Sorry to hijack but thought it may be helpful to list Pelican's "How to" articles for changing fronts, rears, and bleeding:

https://www.pelicanparts.com/techarticl ... Rotors.htm
https://www.pelicanparts.com/techarticl ... cement.htm
https://www.pelicanparts.com/techarticl ... Brakes.htm
CamGTS
Posts: 89
Joined: Thu Nov 19, 2015 9:36 pm

Post by CamGTS »

NB for the rears you do not need the scan tool they refer to, simply remove the actuator and wind it back by hand
111rdw
Posts: 60
Joined: Wed Oct 21, 2020 8:42 pm

Post by 111rdw »

tuizner wrote: Fri May 21, 2021 3:30 pm Sorry to hijack but thought it may be helpful to list Pelican's "How to" articles for changing fronts, rears, and bleeding:

https://www.pelicanparts.com/techarticl ... Rotors.htm
https://www.pelicanparts.com/techarticl ... cement.htm
https://www.pelicanparts.com/techarticl ... Brakes.htm
Brilliant links. Thanks
Scirocco
Posts: 4
Joined: Tue Oct 20, 2020 4:59 pm

Post by Scirocco »

tuizner wrote: Fri May 21, 2021 3:30 pm Sorry to hijack but thought it may be helpful to list Pelican's "How to" articles for changing fronts, rears, and bleeding:

https://www.pelicanparts.com/techarticl ... Rotors.htm
https://www.pelicanparts.com/techarticl ... cement.htm
https://www.pelicanparts.com/techarticl ... Brakes.htm
I'll second that, really useful and exactly what I needed -thanks! Out of intrigue to see if it wasn't worth my time, I got a few quotes from OPC for front pads and discs which have come back a sniff away from £1k?!! Noticeable juddering these last few weeks but the quote combined with these guides (amongst other posts) means it's time to get the parts ordered!
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