Audi A4: help in replacing back breaks

Genuineguy

Hi,

I have an Audi A4 2003 Saloon, the Back Rotors need to be replaced,
Could anyone give me advice or steps in doing so.

I am pretty handy around a car, Just its one thing i never had todo up untill now, Like ot get it right first time.

Also i read from online, Does the Piston on the Callipers have to be screwed back into to allow for new pads, Will a small pliers do this or do i need a specific tool?

When retracting the piston, Can i do any damage to the ABS, do i need to open the bleeder screw when i am doing this.

Thanks

DublinDilbert

Genuineguy wrote: »

Hi,

I have an Audi A4 2003 Saloon, the Back Rotors need to be replaced,
Could anyone give me advice or steps in doing so.

I am pretty handy around a car, Just its one thing i never had todo up untill now, Like ot get it right first time.

Also i read from online, Does the Piston on the Callipers have to be screwed back into to allow for new pads, Will a small pliers do this or do i need a specific tool?

When retracting the piston, Can i do any damage to the ABS, do i need to open the bleeder screw when i am doing this.

Thanks

Your best off getting the wind back tool, they aren't that expensive, will make the job much easier. You can't do it with a pliers as you need to apply force and twist at the same time. Last ones i did i fabricated a wind back tool.

Yea most manuals say it can damage the ABS system/master cylinder, so you should open the bleeder. I've never heard of an ABS system or master cylinder being damaged, doesn't mean it can't happen.

Hal1

The hub nut can be a pig to remove, I think its a 1/2" socket you need. The wind back tool can be bought from halfrauds and looks like this, they are manufactur specific.

Seth Brundle

A G-Clamp is just as good but much cheaper.
Which hub nut needs to be removed?

Neilw

kbannon wrote: »

A G-Clamp is just as good but much cheaper.
Which hub nut needs to be removed?

Not much use for vag rear calipers, the piston has to be screwed back in. Wind back tool makes the job really easy, halfords or gsf parts have them.

DublinDilbert

kbannon wrote: »

A G-Clamp is just as good but much cheaper.
Which hub nut needs to be removed?

The piston needs also to be twisted too for the rear caliper on these, so a simple G-clamp won't cut it, unless there's some way of twisting the piston at the same time. I presume its due to the self adjusting handbrake mechanism built into the rear caliper.

Neilw

Hal1 wrote: »

The hub nut can be a pig to remove, I think its a 1/2" socket you need.

The hub nut does not need to come off, once the wheel is removed the disc will be held on by one philips head screw, remove this and the disc will pull off.

Seth Brundle

Neilw wrote: »

Not much use for vag rear calipers, the piston has to be screwed back in. Wind back tool makes the job really easy, halfords or gsf parts have them.

DublinDilbert wrote: »

The piston needs also to be twisted too for the rear caliper on these, so a simple G-clamp won't cut it, unless there's some way of twisting the piston at the same time. I presume its due to the self adjusting handbrake mechanism built into the rear caliper.

Now that you say it, I think this was mentioned on here a few months back!
Thanks anyhow.

Genuineguy

Thanks guys, Yeah have being very helpful, from the sounds of it, i need to get the correct tool to push the piston back into place. Hopefully the disk/rotor will pop off, by removing the screw holding the disk on, The Auto factors said they are 3 different types of disks used in the A4, Even disks with the wheel bearings fitted to them, So i will pop one off first, and bring it to the Motor factors.