rubenhak

Hey Guys,

First time need to get brakes changed. A local nearby indi can do the work for $500.
Found rotors + pads from SunCoastParts for $1200.

Is it roughly what is expected to pay for full brakes service? I'm in San Francisco bay area.

My brakes started to squeak recently. Are the OEM pads ceramic? Which pads are more silent?

Thanks,
Ruben

shammerman

Are you sure you need to do rotors and pads? How many miles do you have? Do you have a warning light on or are they just noisy?

SConn

Are you sure you need rotors as well? We just replaced my pads (2016 with 26k miles) only because I wanted pads that didn't dust so bad. Went with Posi-quiets. I believe it was a little over $100 for all 4. It's not a difficult job, but before you spend the money on rotors, I'd make sure they need replacing.

rubenhak

42k miles, driving since 2016, I doubt the original owner had the brakes changed. There is a lip on rotors. Around 0.5-1mm. Do you think it can be resurfaced?
No warning, just squeaking embarrassingly.

SConn

A resurface sounds more reasonable than a complete new set to me.

rubenhak

How do i determine that I need new rotors or not? Also please tell me about the pads. How would you compare dust level, performance and the noise?

I was looking to those ones:
https://www.suncoastparts.com/mm5/me...de=99135194902
https://www.suncoastparts.com/mm5/me...t_Code=991RBPS

rubenhak

Do you know what is the minimum rotor thickness?

JW911

Squealing brakes is not an indication that your brakes are worn out. 911 brakes commonly do this, especially if you do mostly mild, low speed braking. You have developed a glaze on your rotors. Do a proper brake bedding procedure to remove the glaze. This involves hard braking from high speed several times. When your brake pads are worn and require replacement you will get a service light on the dash. This happens long before the pads are worn so low as to cause any nasty grinding noises. I would suggest you inspect the pads with a flashlight peering through your wheels before you go and replace everything.

Bob Z.

Centric Posi Quiets are a good option for pads, and see if the rotors can be resurfaced before replacing.

rubenhak

I was told by two shops that its “almost” time to change, not just because of aesthetic reasons.

can you give some reference numbers for pads and rotors to check?

rubenhak

I see Posi Quiet Semi-Metallic and Ceramic pads. Which ones did you get? Did yiu order them online?

SConn

I went with the Posi-quiet ceramics. Those will offer the most dust-free braking.
And the previous poster is correct about brake squeal. It is a common issue on high performance braking systems.

The best way to tell if your pads need replacing is to remove them and inspect them if you have no history on the car. If your rotors need replacing, a shop should be able to measure them for you. Thickness will be determined by the manufacturer's specs/recommendations.

Norge911

dealer told me “almost” time as well and pads lasted another 10,000 miles. I say wait until light comes on.

rubenhak

I understand that. But that was 6 months back
Also, if I change the pads before the warning triggers on the panel, sensors can be reused, right?

SilverSFR

Yes sensors can be reused if not triggered by warn out pads. Warn out pads are less than 2mm thickness. Some pads have ware bars (like tires) that will tell you how much usable pad is left

991 S (both C2S and C4S)

Front

new: 34 mm

minimum (after machining): 32.6 mm

wear limit: 32.0 mm

Rear

new: 28 mm

minimum (after machining): 26.6 mm

wear limit: 26.0 mm