I can’t find much info on the Mk4 VRS brakes, but I am led to believe the TSI and the TDI (possibly just TDI 4x4?) have different front brakes? With the TSI having 340mm single piston sliding callipers and the TDI having smaller disks?

 

Does anyone know if this is the case?

 

I was hoping the TDI 4x4 might come with the 340mm disks also, and then a nice upgrade would be Brembo 4 pot callipers on the decently sized standard disks. (There seem to be tons of MQB cars which can retrofit any number of OEM Brembos, TTRS/DB9 etc). 

 

Anyone have any info? Thanks!

33 minutes ago, sunshinedave said:

I can’t find much info on the Mk4 VRS brakes, but I am led to believe the TSI and the TDI (possibly just TDI 4x4?) have different front brakes? With the TSI having 340mm single piston sliding callipers and the TDI having smaller disks?

 

Does anyone know if this is the case?

 

I was hoping the TDI 4x4 might come with the 340mm disks also, and then a nice upgrade would be Brembo 4 pot callipers on the decently sized standard disks. (There seem to be tons of MQB cars which can retrofit any number of OEM Brembos, TTRS/DB9 etc). 

 

Anyone have any info? Thanks!

 

According to Jurid on autodoc, the Octavia MK4 VRS diesel (2WD and 4WD) has 312x25mm ventilated front discs and 272x10mm solid rear discs, and the Octavia MK4 VRS petrol has 340x30mm ventilated front discs and 310x22mm ventilated rear discs.

Thanks for the info on the standard stuff, confirms my fears! It's a shame really they spec them like that, but a good excuse to go Brembo I guess.

 

Sounds like the rears will be worth an upgrade to at least VRS Petrol spec too.

I think I will start with just changing to EBC Turbo Groove discs and EBC Redstuff pads when the time comes for a change.

So....I didn't go with EBC. At least not entirely. 😁 Instead I have chosen DBA brakes.

Front: DBA 4000 series rotors + DBA XP brake pads
Rear: DBA 4000 series rotors + EBC yellow stuff pads (DBA doesn't offer yet rear pads)
Braided brake lines
Motul RBF 600 brake fluid

First impression is great. Quiet, good initial bite, good pedal feel.

How did you replace the rear pads? Looking online seems to suggest you need vcds or similar. 

11 hours ago, Jmagee said:

How did you replace the rear pads? Looking online seems to suggest you need vcds or similar. 

I didn't do it by myself.

I would agree with what it says online. Since my mechanic didn't have any VAG tools. So I went to another one. I think you need the tool to release the calipers since parking brake is applied automatically after some time when car is on the lift. 

EPB deactivation (Not Tested)

Original source: https://forum.obdeleven.com/post/83526/thread

https://youtu.be/pFod6KI8Zks

 

Connect battery charger

Switch on ignition

Control unit 03 (ABS)

Basic settings

Start lining change mode - Start

The brake cylinder should now open. The brake cylinders are only fully open when there are no longer any noises (a clear whirring can be heard) coming from the rear brake cylinders.

When this process is complete:

Select process Stop.

 

The ignition can now be switched off and work on the rear brakes can begin.

 

After completion of work

Ignition: on

Control unit 03 (ABS)

Basic settings

End lining change mode - Start

The brake cylinder should now close. The brake cylinders are only fully closed when there are no more noises (a clear whirring can be heard) coming from the rear brake cylinders.

                                        

     Select process Stop.

In addition, if you do not want to play with control units, you have the possibility to unlock/lock EPB via OBDeleven app (Workshop\Brake pads replacement).

I am starting to compile hardware to perform the brakes upgrade, I will post details when I do it.

Cheers guys. I don't have obd eleven. Any advice on which one to go for?

 

Looking like a costly month so trying to save some £££

Well, normally I will do the upgrade somewhere in February, finally I will go for EBC redstuff + Zimmermann Black Z on both front and rear axis.

 

While preparing the paperwork, I just spot something on the maintenance manual a bit ... excessive? It's stated that, when applying pressure on the brake fluid reservoir, manometer should sit on 0.2 MPa ... that's 29 PSI. When doing the brake bleed on my 335d I was never going above 18 PSI. What do you think?

And brakes done, finally I went for the Sport Coat Z instead Black Z, for the use of the car it was not worth paying for more performance that we are not going to use. 

For the time being, happy with the upgrade, but I had more expectations of having more hard brake pedal feeling at the first touch, but not.

 

 

50 minutes ago, Mario_Delgado said:

And brakes done, finally I went for the Sport Coat Z instead Black Z, for the use of the car it was not worth paying for more performance that we are not going to use. 

For the time being, happy with the upgrade, but I had more expectations of having more hard brake pedal feeling at the first touch, but not.

 

 

Did you also change the brake lines for the braided ones?
 

Negative, in December I have to pass first TUV inspection and I want to have a clean sheet. Normally it's not a problem, but after reading a bit, seems that sometimes braided lines are marked as non stock part and therefore they put a fail.

Maybe after the inspection I change them with a complete liquid brake flush.

I understand. You know you can get braided lines that look like stock ones?

Third one from the right.

Yes yes, I do know, but this time my risk appetite is equal zero, you do not know who will check the car. Maybe next year, if I still own the car, I will go fo it.