What is correct torque for front and rear 2012 Cayenne S 360mm/330mm c

[958S]

What is correct torque for front and rear calipers on a 2012 Cayenne S with silver calipers which has 360mm up front and 330mm in the rear? I have looked and see specs for the earlier 955 Cayenne and the 2011, but I think something changed in 2012. I see various info, and it looks like maybe it is 200 ft lbs up front and 133 in the rear but that seems high so I was wondering if someone has the repair manual to confirm?

[Loren]

(click to enlarge)

[958S]

Thank you very much, looks like I will be buying a new torque wrench today. I have one that goes to 150 and another that is for large equipment.

[dynamic101]

Wow, I am about to replace my rotors but I found this thread. I should make sure that I am doing the right thing for my vehicle. 

 

I own 2012 Cayenne Base with 360mm Front Rotors and 330mm Rear Rotors.

 

The torques for each caliper in my manual are:

 

- Front Caliper Bolt Torque for M14x1.5x115: 104 ft-lb

- Rear Caliper Bolt Torque for M12x1.5x115: 63 ft-lb

 

It seems that there are big difference between S and Base even though they have the same rotor sizes? 

(Example) M16 vs M14 (Front) and M14 vs M12 (Rear)

 

Before I ordered the parts through Suncoast, I double checked the caliper sizes with a rep. If they sent the caliper bolts with wrong sizes, I should return them and replace with the new ones, i.e., M16 & M14. 

 

Any clarification would be highly appreciated. 

[dynamic101]

Dear Loren,

 

Please make sure the following:

 

2011-14 Cayenne S: Caliper Bolts at Suncoast: 

http://www.suncoastparts.com/category/958v8brakes.html

--> Click "Caliper Bolt Set"

 

2011-14 Cayenne Base: Caliper Bolts at Suncoast:

http://www.suncoastparts.com/category/958V6BRak.html

--> Click "Caliper Bolt Set"

 

As shown in both links, the caliper bolts are same, i.e., Part Number PK958SCBS

 

One of the Suncoast reps confirmed that the caliper bolts for both Base and S are same.

 

Since the torques for caliper bolts are extremely important for DIY & safety, clarification is needed. 

 

Thanks for your help for all, Loren,

[958S]

Now I am interested again to make sure I did not over torque my bolts.

[Loren]

My post above come from my January 2013 Porsche Cayenne Service Manual.

What manual did your information come from?

[dynamic101]

Hi Loren,

 

Regardless of the torques, the bolt sizes are different from what I received from Suncoast. I researched a little more and found that the caliper bolts are all same for 2011-14 Cayenne Base ~ GTS, i.e., M14 & M12 (No M16).

 

Anyway, I got the torque info from:

WM 4X00IN Tightening torques for front axle

Technical values

 

No. 3: Threaded connection securing brake caliper to wheel carrier

 

M14 x 1.5 x 115 thread (always replace screws and lock nuts after removal)

 

Tightening torque 140 Nm (104 ftlb.)

 

 

WM 4X00IN Tightening torques for rear axle

 

Technical values

 

No. 3: Threaded connection securing brake caliper to wheel carrier

 

M12 x 1.5 x 115 thread (always replace screws and lock nuts after removal)

 

Tightening torque 85 Nm (63 ftlb.)

 

 

If you can text me, I will send you a copy of the manual with diagrams for your review. 

 

I think that clarification these torque info would be helpful for all other DIY folks. 

 

Thanks!

[dynamic101]

There was another thread discussed the similar topic.

 

http://www.renntech.org/forums/topic/44544-how-replacing-brake-pads-front-and-rear-at-958-cayenne-year-2012

 

(1) FRONT caliper bolt part: WHT 004 571 (M14x115)

 

 (1A) The part in Pelican: http://www.pelicanparts.com/More_Info/WHT-004-571-M100.htm

 (1B) Another parts info: http://store.paramountauto.com/auto-parts/2012/porsche/cayenne/base-trim/3-6l-v6-gas-engine/brakes-cat/front-brakes-scat    --> See the part number #8 which is WHT 004 571

 

(2) REAR caliper bolt part: N 911 837 01 (M12x115) 

 

(2A) The part in Pelican: http://www.pelicanparts.com/More_Info/N-911-837-01-M100.htm?Brake%20Caliper%20Bolt%20%20%20%3Cfont%20style%3D%22font-weight%3Anormal%22%3E%20(12%20X%20115%20mm%2C%20Rear%20Left%20or%20Right)%20%20

 

(2B) Another parts info: http://store.paramountauto.com/auto-parts/2012/porsche/cayenne/base-trim/3-6l-v6-gas-engine/brakes-cat/rear-brakes-scat  --> See part number #3 which is N 911 837 01

 

Based on the above info, 2012 Cayenne, the front and rear caliper size is M14 (front) and M12 (rear), respectively.

 

If the above bolt sizes are correct, the torques for front and rear should be 104 ftlb (M14 front) and 63 ftlb (M12 rear), respectively.

 

I think that the member 958S needs to verify the caliper bolt sizes. 

[958S]

M14 front and M12 rear are what is on my 2012 958S. If that is the case then sounds like I torqued them way more than needed? I presume I need to replace the bolts again? It says to replace them after removing, which I just did, but is there something about the way they seat that requires replacement if I back them off and re-torque?

[dynamic101]

@958S

 

I am not sure if you need to replace the bolts or not. As far as I know, there are some glues like Loctite on bolts so it's recommended to replace bolts whenever they are taken out. 

 

http://www.pelicanparts.com/techarticles/Porsche-Cayenne/16-BRAKES-Front_Brake_Rotor_Replacement/16-BRAKES-Front_Brake_Rotor_Replacement.htm

 

It seems that pre-2011 Cayenne required 200-ftlb for the front caliper bolts as described in the link.

 

If I were you, I would not replace them. There should be an enough tolerance on all parts so more torques won't break or damage the parts. However, it's just my personal opinion so it can't be a recommendation for your case. 

 

Except the Porsche dealerships, many mechanics don't even use torque wrench (scary but it's true) and rely on their experience. This means that sometimes they apply torques more or less within a tolerance range. 

 

If you take a look the above link, it says that the front caliper bolts are torqued down to 200-ftlb from the factory.

Any post-factory torques would be smaller. We can get a hint from the rear caliper bolt factory torque which is also 200-ftlb. See the link below. 

 

http://www.pelicanparts.com/techarticles/Porsche-Cayenne/19-BRAKES-Rear_Brake_Rotor_Replacement/19-BRAKES-Rear_Brake_Rotor_Replacement.htm

 

 All depends on you but it is always recommended to put the new bolts with Loctite-type glue whenever the old bolts are taken out.  

[dynamic101]

@958S

 

I think that I found some more clues.

 

http://www.pelicanparts.com/cgi-bin/supertech/catalog.cgi?action=frameset&return-url=/cgi-bin/supertech/catalog.cgi%3Faction%3Dframeback%26page%3D1819&catalog-url=http%3A%2F%2Fwww.pelicanparts.com%2Fcatalog%2FSuperCat%2F4898%2FPOR_4898_BRKHYD_pg1.htm%3Futm_source%3DSuperTech%23item2

 

2010 Cayenne has M16 (front) & M14 (rear) caliper bolts as shown in the above link.

 

Both M16 & M14 caliper bolts are torqued down to 200 ftlb from the factory.

 

If the post-factory torque for the rear caliper bolt is 133 ftlb as shown in the table Loren provided, it's about 67 ftlb less than the factory torque.

 

So we can assume that there is a great amount of tolerance on those parts in terms of torques.

 

Hopefully this helps! 

[958S]

I am more confused than ever, as much as I do not want to remove the wheels and brakes again to retighten I certainly will if I should. Maybe I should leave them alone. I agree that most places do not torque and hammer things tight with an air impact, but I torque everything so it is probably going to bug me until I do.

Edited December 5, 2015 by 958S

[Eric Kong]

On 12/3/2015 at 12:11 AM, dynamic101 said:

Wow, I am about to replace my rotors but I found this thread. I should make sure that I am doing the right thing for my vehicle. 

 

I own 2012 Cayenne Base with 360mm Front Rotors and 330mm Rear Rotors.

 

The torques for each caliper in my manual are:

 

- Front Caliper Bolt Torque for M14x1.5x115: 104 ft-lb

- Rear Caliper Bolt Torque for M12x1.5x115: 63 ft-lb

 

It seems that there are big difference between S and Base even though they have the same rotor sizes? 

(Example) M16 vs M14 (Front) and M14 vs M12 (Rear)

 

Before I ordered the parts through Suncoast, I double checked the caliper sizes with a rep. If they sent the caliper bolts with wrong sizes, I should return them and replace with the new ones, i.e., M16 & M14. 

 

Any clarification would be highly appreciated. 

do you know which page in the manual ?

[Eric Kong]

Do you know which page in the manual for this specs ?

[Loren]

48 minutes ago, Eric Kong said:

Do you know which page in the manual for this specs ?

 

Depending on your brake size and design (steel vs ceramic) the torque specs will be different.