Don’t know whether this has been asked before but,

Ive just seen some audi sq5 callipers. The wonder was would they fit on my octavia? I’m sure their 4 pots and use 380mm disc as far as I can see. I know the Touareg/Porsche ones fit straight on.

Any thoughts?

Cheers Phil

Touareg and Porsche 17Z’s and 18Z’s don’t fit straight onto most MQB platform cars, they certainly don’t fit the vRS. SQ5 is a totally different platform so not likely to fit either. Calipers that do fit straight on include 8P TTRS/RS3 Brembo 4 pots (also used on the Aston Martin DB9) like I have for my car (DB9 ones) and can take a variety of disc sizes with different carriers. If you can hang tight until next weekend I can show you how they look on my car with OEM size (but not OEM Skoda) 340mm discs (I have not gone for TTRS 370mm for various reasons). If you are staying 340 though I would probably go for 8S TTS 4 pots as they are cheaper. If I was buying the calipers again I would go for these tbh unless you can push the boat out and go for 8V RS3 8 pots but 8V RS3 discs don’t fit as the hubs are different. You will need spacers on the car if you use the calipers I have used and you have OEM wheels.
 

 

 

13 hours ago, PremoPhil said:

Any thoughts?

 

Look at Vagbremtechnic, If they don't do it, it is not worth doing.

 

If you are going mess with your brakes and you have to ask the question, do something that has been proved to work or you will end up with a headache, or in the ditch, or both.

 

Make sure your braking system can take the upgrade. Some of these 4-pot calipers need a lot of fluid.

Hi i have octavia 1.8 TSI and i want to upgrade brakes, front 340mm and rear 310mm can i just chnange carriers and keep calippers?

21 minutes ago, Jan21 said:

Hi i have octavia 1.8 TSI and i want to upgrade brakes

Your profile says you have a 2012 Octavia, which would make it a Mark II, so have you posted in the correct forum (this is the Octavia III forum)?

 

I also have a 1.8TSI Octavia, what makes you want to upgrade your brakes?

Edited 5 September, 20241 yr by PetrolDave

10 minutes ago, PetrolDave said:

Your profile says you have a 2012 Octavia, which would make it a Mark II, so have you posted in the correct forum (this is the Octavia III forum)?

 

I also have a 1.8TSI Octavia, what makes you want to upgrade your brakes?

It is mk3 one off the first one from assembly line and it is stage 3 with is20 turbo DSG i want to upgrade to is38 or garret powermax stage1 so i need bigger brakes

 

 

Edited 5 September, 20241 yr by Jan21

Hi, I need help with  brakes. I have  Octavia 1.8 TSI with 312mm front and 272mm rear brakes. I need bigger brakes from the vRS245 (340mm and 310mm). Can I keep the calipers and change only the brackets and dust shields?

On 25/09/2024 at 09:08, Jan21 said:

Hi, I need help with  brakes. I have  Octavia 1.8 TSI with 312mm front and 272mm rear brakes. I need bigger brakes from the vRS245 (340mm and 310mm). Can I keep the calipers and change only the brackets and dust shields?

 

As you can see in the two charts below, the bigger brake discs don't just have a bigger diameter but are thicker too...so new brake calipers are required. However, I suggest you look into fitting 314x30mm front brakes only because as well as being a lot cheaper than changing front and back will allow you to still run 16" wheels. This can be handy if you've got a 16" spare because even the 310x22mm rear discs would need at least 17" rims to clear the rear brake calipers (according to one forum member, but I suspect this is true).

 

The only Skoda the 314x30mm front brake discs were used on was the Kodiaq, probably the 150HP model...although that is a heavier car than the Octavia MK3. The 314x30mm appears to be a much cheaper brake disc size than 340x30mm but is similarly bulky due to the shared 30mm brake disc width and they both use the same beefy front brake calipers.

 

The 314x30mm front brakes are a TRW brake system.

 

Front brakes

312x25mm

340x30mm

 

Rear brake discs

272x10mm

310x22mm

 

Skoda parts diagram for 314x30mm front brakes (from Kodiaq)

https://www.lllparts.co.uk/catalogs/skoda/CZ/KOD/804/6/615/615010

 

Left brake caliper for 314x30mm and 340x30mm front brake disc 3C0615123

https://www.autodoc.co.uk/trw/2184642#brake-caliper

 

Right brake caliper for 314x30mm and 340x30mm front brake disc 3C0615123
https://www.autodoc.co.uk/trw/2184643#brake-caliper

 

Left brake caliper carrier for 314x30mm front brake disc 7N0615125

https://www.autodoc.co.uk/trw/2183223#carrier-brake-caliper

 

Right brake caliper carrier for 314x30mm front brake disc 7N0615126

https://www.autodoc.co.uk/trw/2183224#carrier-brake-caliper

 

ATE 314x30mm front brake disc 1K0615301AJ

https://www.autodoc.co.uk/ate/7005983#brake-disc

 

I've added diagrams of the front brake pads for the 312x25mm front brake discs and the 314x30mm/340x30mm front brake discs. The 314x30mm and 340x30mm front brake discs use the same front brake pads because they use the same front brake calipers. I would estimate that the 314x30mm/340x30mm front brake pads have at least a 15% increase in braking surface area of the brake friction material. Bear in mind the pistons on the front brake calipers for the 312x25mm front brake discs have a diameter of 57mm, whereas the pistons on the front brake calipers for the 314x30mm/340x30mm front brake discs have a piston diameter of 60mm...which results in about a 10% increase in force being applied to the brake pads when the brake pedal is pressed with the same amount of force. So all this adds up to more braking force, bigger pad area, and those bigger more beefy brake discs which take longer to heat up and can dissipate the heat quicker.

 

TRW GDB1956 front brake pads for 312x25mm front brake disc 

 

TRW GDB2114 front brake pads for 314x30mm and 340x30mm front brake disc 8V0698151C

https://www.autodoc.co.uk/trw/11288579#brake-pad-set

 

I've added three diagrams of the 312x25mm, 314x30mm, and 340x30mm front brake discs. Notice that the 312x25mm front brake discs have a 8.5mm gap for cooling (the ventilated part), whereas the 314x30mm front brake discs have a 10.5mm gap...so that's well over a 20% bigger gap for cooling (the ventilated part).

 

312x25mm front brake disc 8.6kg

https://www.autodoc.co.uk/brembo/1657592#brake-disc

 

314x30mm front brake disc 9.4kg

https://www.autodoc.co.uk/brembo/8714198#brake-disc

 

340x30mm front brake disc 10.8kg

https://www.autodoc.co.uk/brembo/8714327#brake-disc

 

Edited 26 September, 20241 yr by Carlston

On 25/09/2024 at 22:55, Carlston said:

 

As you can see in the two charts below, the bigger brake discs don't just have a bigger diameter but are thicker too...so new brake calipers are required. However, I suggest you look into fitting 314x30mm front brakes only because as well as being a lot cheaper than changing front and back will allow you to still run 16" wheels. This can be handy if you've got a 16" spare because even the 310x22mm rear discs would need at least 17" rims to clear the rear brake calipers (according to one forum member, but I suspect this is true).

 

The only Skoda the 314x30mm front brake discs were used on was the Kodiaq, probably the 150HP model...although that is a heavier car than the Octavia MK3. The 314x30mm appears to be a much cheaper brake disc size than 340x30mm but is similarly bulky due to the shared 30mm brake disc width and they both use the same beefy front brake calipers.

 

The 314x30mm front brakes are a TRW brake system.

 

Front brakes

312x25mm

340x30mm

 

Rear brake discs

272x10mm

310x22mm

 

Skoda parts diagram for 314x30mm front brakes (from Kodiaq)

https://www.lllparts.co.uk/catalogs/skoda/CZ/KOD/804/6/615/615010

 

Left brake caliper for 314x30mm and 340x30mm front brake disc 3C0615123

https://www.autodoc.co.uk/trw/2184642#brake-caliper

 

Right brake caliper for 314x30mm and 340x30mm front brake disc 3C0615123
https://www.autodoc.co.uk/trw/2184643#brake-caliper

 

Left brake caliper carrier for 314x30mm front brake disc 7N0615125

https://www.autodoc.co.uk/trw/2183223#carrier-brake-caliper

 

Right brake caliper carrier for 314x30mm front brake disc 7N0615126

https://www.autodoc.co.uk/trw/2183224#carrier-brake-caliper

 

ATE 314x30mm front brake disc 1K0615301AJ

https://www.autodoc.co.uk/ate/7005983#brake-disc

 

I've added diagrams of the front brake pads for the 312x25mm front brake discs and the 314x30mm/340x30mm front brake discs. The 314x30mm and 340x30mm front brake discs use the same front brake pads because they use the same front brake calipers. I would estimate that the 314x30mm/340x30mm front brake pads have at least a 15% increase in braking surface area of the brake friction material. Bear in mind the pistons on the front brake calipers for the 312x25mm front brake discs have a diameter of 57mm, whereas the pistons on the front brake calipers for the 314x30mm/340x30mm front brake discs have a piston diameter of 60mm...which results in about a 10% increase in force being applied to the brake pads when the brake pedal is pressed with the same amount of force. So all this adds up to more braking force, bigger pad area, and those bigger more beefy brake discs which take longer to heat up and can dissipate the heat quicker.

 

TRW GDB1956 front brake pads for 312x25mm front brake disc 

 

TRW GDB2114 front brake pads for 314x30mm and 340x30mm front brake disc 8V0698151C

https://www.autodoc.co.uk/trw/11288579#brake-pad-set

 

I've added three diagrams of the 312x25mm, 314x30mm, and 340x30mm front brake discs. Notice that the 312x25mm front brake discs have a 8.5mm gap for cooling (the ventilated part), whereas the 314x30mm front brake discs have a 10.5mm gap...so that's well over a 20% bigger gap for cooling (the ventilated part).

 

312x25mm front brake disc 8.6kg

https://www.autodoc.co.uk/brembo/1657592#brake-disc

 

314x30mm front brake disc 9.4kg

https://www.autodoc.co.uk/brembo/8714198#brake-disc

 

340x30mm front brake disc 10.8kg

https://www.autodoc.co.uk/brembo/8714327#brake-disc

 

Thank you but i need 340 and 310 car have allready 225kw next year over 300kw so i will order callipers and brackets and hope that brake lines are long enough

For the 340/310mm you'll need calipers, carriers, shields, discs and pads. As @Carlston says they are all different thicknesses. The rears, in particular, go from solid to vented. 

 

The stock braking system on these cars works well up to 400bhp IIRC. You might find that getting some nice EBC/Pagid pads will give you a bit of a boost in performance too.

 

IMHO if you are't tracking the car, I'd stick to the stock (340/310 upgraded) brake system. Larger calipers actually only provide better heat resistance (not an issue on the road) and look better. You'll run out of grip from the 225/235 tyres long before 340mm and the trusty VW single piston caliper isn't enough.

2 hours ago, BluevRS245 said:

For the 340/310mm you'll need calipers, carriers, shields, discs and pads. As @Carlston says they are all different thicknesses. The rears, in particular, go from solid to vented. 

 

The stock braking system on these cars works well up to 400bhp IIRC. You might find that getting some nice EBC/Pagid pads will give you a bit of a boost in performance too.

 

IMHO if you are't tracking the car, I'd stick to the stock (340/310 upgraded) brake system. Larger calipers actually only provide better heat resistance (not an issue on the road) and look better. You'll run out of grip from the 225/235 tyres long before 340mm and the trusty VW single piston caliper isn't enough.

I think stock calipers are good enough for my use. I need save some money for new gearbox😀 pushing 410nm from dq200 and planing 500nm

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