Braking Noises in Sportage after Brake Job

[syednayl99]

Hey Guys,

So been running into quite an odd issue, I had my brake pads recently changed after running the car for around 45k miles and the factory pads were worn down.

I had the discs turned and put in and the brake pads were replaced with Hang Sung Brake Pads which are imported from Korea. I however got a bad batch as the pads were producing a ton of dust and there was noise when the car would come to a stop and when I would release the brakes from a stop. I believe this is called Creak Groans.

So I decided to go for a replacement once again. I had the discs checked and went for a brand I have used in my cars earlier which is I-Brake an Indonesian Brand which has served me well. However, I still seem to be getting the Creak Groan/Brake Noise and also an odd grinding noise from the rear brakes which were not there with the Hang Sung Brakes.

I have also greased the Brake Hardware and Slide Pins before putting these new pads in my car but get this noise. Not quite sure what the issue is as it is quite perplexing to me that these issues are popping up.

I decided to ride my brakes around the block and check what my discs look like, and they look fine to me. However, I am attaching pictures below to see if anyone has any thoughts.

I have gone through the proper bedding procedure for both sets of Pads.

Requesting the help of members to help me sort this issue out as it is quite odd.

@Xulfiqar

@dani_kk

[dani_kk]

How many km's you have driven on these new brake pads? Like these rotors have taken how many km's after resurfacing/polishing?

[syednayl99]

Around 10-15 kilometers.

I decided to ride the brakes today and the noises have been gone alhamdullilah since then.

But I am surprised as to why this issue happened in the first place.

Any Idea?

[dani_kk]

When you get the rotors resurfaced or polished, you need to either roast your brakes slightly so they mate well with the disc pads. If you don't do so drive it in routine for
10-20kms and it will be fine. That's why it got well now.

[syednayl99]

Roast as in literally roast them?

The noise comes and goes. It is generally there when I drive my car first thing in the morning, maybe because the rotors have some surface rust and goes away when I drive.

I drove just right now, and the noise is there, not so much when I am coming to a stop and more when I release the brakes to accelerate post the stop. Especially when I am using auto brake hold.

Any ideas what to do here @Xulfiqar @dani_kk

[syednayl99]

Or is this just a matter of driving around a while and the noise would go away itself. Though I doubt it would.

[dani_kk]

Which brake pads have you used. This usually appears when one uses low quality brake pads.

[syednayl99]

Initially I bought Hang Sung Brake Pads (apparently Korean), but those produced way too much brake dust and I had them removed. I then bought I-Brake which are Indonesian, I use the same pads in a few of my other cars and they have pretty decent bite and don't produce any noise.

Have been unable to source well-known companies Brake Pads here for Sportage such as Advics, Nissin or Akebono so opted for something I have used. I had the option to use Frixa Brake Pads but they are notoroious for being noisy so did not opt for them.

[dani_kk]

Then my advice is to use it for 100kms and see the result.

[syednayl]

Seems to have settled down alhamdullilah, have noticed that the Sportage rotors rust very quick.