ultimate brake replacement thread - Porsche Macan Forum
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post #1 of 21 (permalink) Old 06-17-2017, 11:16 AM Thread Starter
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Default ultimate brake replacement thread

OK - here goes. This may be my first post, and if it is not, then it is the first one that matters. First things first

2016 Macan S with 47,700 miles

So why am I doing this? There is not a good write up of this anywhere - closest is the GT3 write up video. I have done this in other forum for other cars and here is why - my memory sucks. In two years when I need to do it again I have a resource to go back to so I don't have to start all over again.

Also this is going to be a mix of incoherent thoughts and facts about the front and back brakes

Lets get the facts out of the way

There is no Macan repair manual I can find yet
There are no good videos on line of the Macan (and no - I don't do videos but I should)
The Gen 2 Cayenne is the closest thing to the macan - and there is a manual for this on line - which I purchased for $15 on ebay

So l detailed the Macan yesterday and when the tires were off I looked at the pads up front and rear and was shocked! There is almost no pad but the rotors were still smooth. All original equipment

Fact 1 - Front Rotor min thickness in 32mm (I know this becasue it is written on the disc)

I measured mine and I am good - 32.8mm and smooth

Rear pads also shot

Fact 2 - to measure rear rotor thickness you need a thing that goes on the hub and a computer attached micrometer - there is no room to get a standard micrometer on becasue of the rear backing plate.

So I get on line and do more research and here is what I learn

Replacing front pads and rotors is a standard process

Replacing rear pads is straight forward and simple - no special tools needs

Fact 3 - Replacing rear rotors is the problem - The shoes for the parking brake inside the rear rotors need to be set and bedded in - and the only way to do this is with PIWIS - durmetric 6 does not work for this

So I called the dealer for a price estimate - and here was the ball park $1600-$1800 for the front pads and rotors, $1200-$1400 for the rear pads and rotors

They charge 2.5 hours of labor per axle

After I picked my jaw up off the floor I started looking for parts

So today is going to be front's only and I will do the rears later

As for parts - Autozone, Advance, Oriellys - good luck

For OEM stuff -

The Porsche dealer was $300 for the front pads and $65 each per sensor

Pelican was $217 for the pads and $38 for Porsche sensors

Called the dealer and asked for a discount and they gave me %10 - so as it stands currently my delviery boy (other wise known as my son) is on his way to get the parts.

If all goes well then there will be pics and a process up later

Total cost so far $15 for Cayenne repair manual
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post #2 of 21 (permalink) Old 06-17-2017, 12:50 PM
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so at 14K i figure i am good at least until 25-35K before i go for my lungs
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post #3 of 21 (permalink) Old 06-17-2017, 01:01 PM
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Quote:
Originally Posted by Greg Kovacevich View Post
.....There is no Macan repair manual I can find yet....

....Replacing rear rotors is the problem - The shoes for the parking brake inside the rear rotors need to be set and bedded in - and the only way to do this is with PIWIS....
Hello and welcome to the group!

Unless things have changed, there is online Macan service information available using a time-based subscription on the PIWIS website. Here's where you have to go to sign-up.....

https://techinfo2.porsche.com/PAGInf...OLogin&lk=ELSE


For replacement of the rear brake pads, you can retract the parking brake without a PIWIS tool. See post number 84 in this thread for some discussion on how to do that....

http://www.macanforum.com/forum/whee...service-9.html


I haven't watched the video, so it may already be mentioned there......but the front caliper bolts on the Macan are Torque-to-Yield and must be replaced each time you remove the caliper to change pads.
Hope that helps. Let us know how it goes, and thanks for sharing your experience.

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post #4 of 21 (permalink) Old 06-17-2017, 03:47 PM
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Originally Posted by SoCalS5 View Post
..but the front caliper bolts on the Macan are Torque-to-Yield and must be replaced each time you remove the caliper to change pads
*ALL* caliper bolts are torque-to-yield types - both front and rear.
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post #5 of 21 (permalink) Old 06-17-2017, 04:00 PM
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Quote:
Originally Posted by ebs View Post
*ALL* caliper bolts are torque-to-yield types - both front and rear.
Ah, yes......a very good point. I only thought to mention the front, since removing the calipers is required for a pad change; whereas that's not the case for the rear.
Still, an important point to keep in mind for when a rear rotor change is in order. Thanks!

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post #6 of 21 (permalink) Old 06-17-2017, 04:09 PM
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Yeah, it's annoying you need to remove the caliper just to change the pads in front.

BTW, for folks thinking about rear rotor changes - it's quite awkward and hard physically to remove and torque back caliper bolts due to lack of space for a proper breaker bar. Unless you have a good set of different length wrenches, something like this - https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 would make the job easier.
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Last edited by ebs; 06-17-2017 at 06:35 PM.
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post #7 of 21 (permalink) Old 06-17-2017, 09:06 PM
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Why do you need to remove the front calipers to just change the pads? Aren't they simply held in place by pins/clip.? Once you remove the pins/clip and spread the pads from the rotor you just lift the pads out.

(This from someone who is a DIY'er but hasn't removed the wheels yet to take a look.)

Also, just had my tires changed at 36K miles. Pad life left on all corners is 75%.

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post #8 of 21 (permalink) Old 06-17-2017, 10:07 PM
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Quote:
Originally Posted by Pkaia524 View Post
Why do you need to remove the front calipers to just change the pads?.......
That's what I wondered too, back before I actually saw how the calipers are constructed. They are not the typical pin and clip type. Here's a photo of the top of an S caliper.......from the DIY Brake Bleed thread:




Source: http://www.macanforum.com/forum/whee...ake-bleed.html
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post #9 of 21 (permalink) Old 06-17-2017, 10:40 PM Thread Starter
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All right. The update you have been waiting for. Computers are not my strong thing so this may take a few days. Did front pads only and all went well.

So I bought Porsche pads from Porsche Beachwood - they had them in stock. $305 with 10% PCA discount. So here they are

Anyway, they say Akebono. Will now take a break to figure out pics.
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post #10 of 21 (permalink) Old 06-17-2017, 10:46 PM Thread Starter
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