Hello!

 

I have just bought a Octavia mk3 MY2014 2.0 TDI RS with 6-speed manual. Its driven for about 167000 km 

now. I changed with my friend who is keen with cars the front brake discs and pads and also the rear brake and pads.

 

The front brakes are 340mm diameter and the rears are 272mm. I have now noticed two weeks after the repair that the rear brake pads don't clean the whole surface of the discs. That makes me think i have the wrong size pads in. When we changed them they installed ok and seemed fine.

 

The PR code for the rear brakes is 1KT in my car. The parts i used in the front and rear are TRW brand. Here are the parts:

 - Front discs TRW DF6133S

 - Front pads TRW GDB2114

 - Rear discs TRW DF7911

 - Rear pads TRW GDB2042

 

I attach an pic to see the problem. So can any of you fine people here in Briskoda tell me what is the right part number and especially the right size for the rear pads? Dont want to ruin my new discs immediately.

 

The measurements for the TRW GDB2042 rear pads are:

 - width 104,2 mm

 - height 51,9 mm

 - depth 17,5 mm

 

Are these the wrong pads? 

 

 

 

Gdb2042 are what I have fitted and no issues at all. 

Ok...hmm i had my brake fluid changed in a garage along with air con and gearbox oil change. We noticed that after we changed the new parts the brake fluid reservoir flooded and now there is fluid over the MAX-marking in the reservoir.

 

Could this be the issue that i have too much brake fluid atm? Should i take some of it off with a syringe to make the fluid level decrease to below MAX?

Hello, pushing back the pistons to fit the new pads will have displaced fluid back into the reservoir - syringe out the excess. 

I would go with ATE brake discs, rather than TRW ones as they are probably better quality.

 

Here's a complete list of TRW brake pads and ATE brake discs for the Octavia MK3

 

Octavia MK3 Brake Pads and Brake Discs

 

TRW Front Brake Pads

1ZF 276mm TRW GDB2080

1ZE 288mm TRW GDB1956

1ZA 312mm TRW GDB1956

1ZB 312mm TRW GDB1956

1LG 340mm TRW GDB2114

 

TRW Rear Brake Pads

1KD 253mm TRW GDB1330

1KS 272mm TRW GDB2042

1KT 272mm TRW GDB2042

1KW 310mm TRW GDB1622

 

ATE Front Brake Discs

1ZF 276mm ATE 24012402581

1ZE 288mm ATE 24012501451

1ZA 312mm ATE 24012501581

1ZB 312mm ATE 24012501581

1LG 340mm ATE 24013002251

 

ATE Rear Brake Discs

1KD 253mm ATE 24011004201

1KS 272mm ATE 24011003561

1KW 310mm ATE 24012202191

 

Edited 1 June, 20233 yr by Carlston

I took about 75 ml fluid off from the reservoir to decrease the level just below MAX. Will see if this helps to clean the rear discs fully.

Any other ideas?

It won’t change how clean the rear discs are? I personally don’t see the issue on the rear discs, look pretty normal

I took about 75 ml fluid off from the reservoir to decrease the level just below MAX. Will see if this helps to clean the rear discs fully.

Any other ideas?

I thought he was going to use the fluid to clean the rear discs 🥴

Oops...double post.

56 minutes ago, J.R. said:

I thought he was going to use the fluid to clean the rear discs 🥴

Hahaa😄...of course not.

 

 

But if you look at the picture i attached...it looks to me that the most inner surface of the rear discs arent getting cleaned by the pads...theres a film of rust near the wheel hub where the disc ends. I think that the whole braking surface should be clear hence why i dont think that the pads touch the whole surface?

1 hour ago, Jo88Mak said:

But if you look at the picture i attached...it looks to me that the most inner surface of the rear discs arent getting cleaned by the pads...theres a film of rust near the wheel hub where the disc ends. I think that the whole braking surface should be clear hence why i dont think that the pads touch the whole surface?

From the image you posted, I think that is normal - the area wiped by the pads would not normally extend all the way in to the hub.  

42 minutes ago, Warrior193 said:

From the image you posted, I think that is normal - the area wiped by the pads would not normally extend all the way in to the hub.

 

Agreed. Its completely normal.

I just think it looks ugly that there is like 4-5mm wide area of rust in the disc. And if I look other cars in the parking lots...they have shiny discs without rust...in the braking area. Makes me think that are the pads seating properly?

18 minutes ago, Jo88Mak said:

I just think it looks ugly that there is like 4-5mm wide area of rust in the disc. And if I look other cars in the parking lots...they have shiny discs without rust...in the braking area. Makes me think that are the pads seating properly?

 

TRW brake discs are painted, whereas ATE brake discs are coated. Coated brake discs probably resist rusting better than painted.

 

ATE 24011003561 272x10mm rear brake discs (coated)

https://www.autodoc.co.uk/ate/7008517?search=ATE Brake Disc (24.0110-0356.1)

 

TRW DF7911 272x10mm rear brake discs (painted)

https://www.autodoc.co.uk/trw/7489066?search=TRW Brake Disc (DF7911)

 

Edited 5 June, 20232 yr by Carlston