As I changed the brakes of my VRS 288 to 300mm, what do I need to put these discs and calipers on our 1.2/12v HTP?

1 hour ago, Erreesse said:

...as I changed the brakes of my VRS 288 to 300mm...

I think you mean 310mm/312mm rather than 300mm.

The 288mm front brakes use separate brake caliper carriers, whereas the smaller 256mm front brakes use brake caliper carriers that are built into the wheel bearing housing.

Therefore, when upgrading from 256mm to 288mm front brakes, the wheel bearing housing needs to be changed...as well as the front brake discs, front brake calipers, and front brake caliper carriers.

The Fabia MK2 models that came with the 288mm front brakes have at least 105PS. So lowered powered models have the smaller 256mm front brakes.

The OEM part numbers can be obtained from a Fabia MK2 parts diagram, such as lllparts.

However, the brake system for the 288mm front brakes (and build code) was changed for the 2011 model year and onwards for the Fabia MK2. So up to and including the 2010 model year the Fabia MK2 has build code 1LN for its 288mm front brakes...and from the 2011 model year the build code for the 288mm front brakes became 1ZC or 1ZD. 1ZC and 1ZD are the same except for the colour of the front brake calipers/carriers. 1ZD is painted red. 1ZC/1ZD is an ATE brake system.

According to wikipedia, the Fabia MK2 1.4TSI VRS came out in 2010 (the 2011 model year) and therefore would have the 1ZD 288mm front brakes.

I haven't added the 1ZC/1ZD OEM part numbers below, but I the below OEM part numbers for the 288mm front brake discs and wheel bearing housings would also fit the 1ZC/1ZD 288mm front brakes.

288mm front brakes (TRW brake system) (build code 1LN)

	6Q0615123	brake caliper housing	left		1LN
	6Q0615124	brake caliper housing	right		1LN
	6Q0615125	brake carrier with pad retaining pin	left		1LN
	6Q0615126	brake carrier with pad retaining pin	right		1LN

	1J0615301R	brake disc (vented) d >> - 24.05.2009	288x25mm 5/100		1LN
	6R0615301A	brake disc (vented) d - 25.05.2009>>	288x25mm 5/100		1LN

	6Q0698151A	1 set of brake pads for disk brake			1LN+9U0
	6Q0698151C	1 set: brake pads with wear indicator for disc brake			1LN+9U1

wheel bearing housing for Fabia MK1/MK2/Roomster 288mm front brakes

	6Q0407255S	wheel bearing housing	left		1LN
	6Q0407256S	wheel bearing housing	right		1LN

Edited 21 hours ago21 hr by Carlston

Thank you, a lot of info that my old brain has to work with.

Yes it was a kit I bought for the F2 VRS, from www.4yourdrive.de with 310mm discs, calipers and pads. So I I thought to mount the 288mm discs/calipers on the 1.2/12V. So I only need to buy a pair off steering knuckles/wheel bearing housings to mount on the 1.2.

And the cover plates for the discs.

1 hour ago, Erreesse said:

...and the cover plates for the discs...

The 6R0615311 OEM part number that the Fabia MK2 1.4TSI VRS uses for the "left cover plate for 288mm front brake disc", is also listed against the early 256mm front brakes...so "cover plates for 256mm front brake discs" will sometimes fit the 288mm front brake discs.

The below 275mm outside diameter backing plate is sold to replace 6R0615311 and two other OEM part numbers. 6R0615311 is the only OEM part number listed for the Fabia MK2 1.4TSI VRS front brakes, ie. build code 1ZD.

The below 313mm outside diameter backing plate is sold to replace 6R0615311D and no other OEM part numbers, so should be an exact match to 6R0615311D.

This demonstrates that the cover plates for the 288mm front brake discs don't always have a bigger outside diameter than the cover plates used for the 256mm front brake discs.

VAN WEZEL 5829371 Brake disc backing plate Front Axle Left (275mm outside diameter) (fits 256mm, 288mm, and 310mm/312mm front brakes)

6R0615311

6R0615311A

...and one other OEM part number

https://www.autodoc.co.uk/van-wezel/13789403#brake-disc-backing-plate

VAN WEZEL 5814371 Brake disc backing plate Front Axle Left (280mm outside diameter) (fits 256mm front brakes)

6R0615311C

https://www.autodoc.co.uk/van-wezel/19151662

VAN WEZEL 7629371 Brake disc backing plate Front Axle Left (313mm outside diameter) (fits 288mm front brakes)

6R0615311D

https://www.autodoc.co.uk/van-wezel/20472995

Out of the two below left cover plates, I would probably go for the 6R0615311 cover plate because that was fitted to the Fabia MK2 VRS. 6R9615311 was also used on the VW Polo MK4 GTI. The VW Polo MK4 GTI had 310mm/312mm front brakes (build code 1LJ).

As well as being listed against 6R0615311, the above Van Wezel 5829371 is also listed against 6R0615311A. 6R0615311A is the only left cover plate used on the VW Up!, so includes both this car's 256mm and 288mm front brakes. 6R0615311A is the only left cover plate used on the Skoda Citigo, ie. it's 256mm front brakes.

To get the OEM part number for the right side, just add one to the left side OEM part number, ie. 6R0615311 becomes 6R0615312 and 6R0615311D becomes 6R0615312D.

288mm front brakes (build code 1ZC)

	6R0615311	Cover plate for brake disc D >> - 26.05.2014	left
	6R0615311D	Cover plate for brake disc D - 26.05.2014>>	left

288mm front brakes (build code 1ZD) (Fabia MK2 VRS front brakes)

6R0615311

Cover plate for brake disc

left

310mm/312mm front brakes (build code 1LJ) (VW Polo MK4 GTI)

6R0615311A

Cover plate for brake disc

Edited 20 hours ago20 hr by Carlston

Thank you for the detailed study.