Rear brake piston
 

Will be replacing the rear brake pads on my 2007 x350 soon, did a search to confirm what direction to turn piston, thought I read somewhere the rear right is turned clockwise and the rear left counter clockwise, but after search not so sure this is correct,
also
I have the cube thing for turning piston but it has four pins, does anyone know what the distance is between the pins, I know some folks recommend using the more professional tool,,
any help will be appreciated,
Dave
2007 x350

dvjag , don't panic , if you turn the wrong way the piston will try to come out .

They both turn clockwise from memory . make sure the IGNITION KEY IS IN when you do the job and of course the H/BRAKE IS OFF .

I believe the spare part shops in the US will loan or hire out the tool .

Cheers ,

Sid

Review this post from the "How To" section
 

https://www.jaguarforums.com/forum/x...23/#post409524

Everything you need is right here to repair your own brakes.

You don't need a special tool to retract the pistons. I used a couple of machine screws and a pair of needle-nose Vise Grips. The pistons need to be rotated clockwise to retract them into the caliper. Here's a photo showing how I used this improvised tool on the separate EPB calipers of our '04 XJR:

https://cimg4.ibsrv.net/gimg/www.jag...9958f45ca8.jpg


If your calipers can be disassembled to remove any obstructions in the way of the piston, you may be able to simply use the tips of a pair of needle-nose pliers.

Cheers,

Don

You will also find some angle grinder spanners will work as will needle nose and circlip pliers

Also when replacing the EPB pads I don't remove the caliper
I just remove the torx bolts and split the caliper

By the time you need new EPB pads you are also up for anew rotors

So to make things easy
Split the EBP caliper
Remove the Brembo caliper
Slide the disk off
Wind in the EPB piston
Do the reverse for assembly

Cheers
34by151

Update,,,,
 

Just spent a frustrating and expensive afternoon, bought the proper tool to retract the piston, opened bleed screw, put as much force on piston as a feeble 68 year old can turning it clockwise, it did not retract one bit, so tried turning it counter clockwise and bingo the piston came out,, after a long time fiddling with it got it back in but cannot get the d,,, thing retracted far enough to get pads in, so I presume the caliper is duff, so picking up new one from dealer tomorrow, my nephew works there so getting a break of the cost, but still expensive, if I had the time I would get it from Rock Auto and save quite a bit, but need car to do the school run with the grandkids,,
anyhow thanks for all the info
regards
Dave
2007 xj8