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C5 2.2 Hdi Front Brakes


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#1 goldenfrog

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Posted 14 June 2010 - 10:48 AM

Hello
I have tried to change the front pads and discs on my 2002 Citroen C5 2.2 HDI SX Estate, the problem is that after removing the two torx head bolts securing the calipers, I cannot slide the caliper assembly off of the disc because of the ridge on the edge of the disc. The ridge is caused because the pads do not reach the edge of the disc and when the disc wears it leaves a ridge at the edge. In my case it is about 1.5mm high on each side. I cannot force the piston back in the caliper because it is threaded and has to be turned as it is pushed back in, and I can't see a way of doing this with it fully assembled. The only thing I can think of doing is to use an angle grinder and grind the ridge down. Is this the way to go or is there an easier solution. Any advice greatly appreciated.
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#2 Johndouglas

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Posted 14 June 2010 - 03:34 PM

It doesn't sound as though you're going about it the right way. When you've got the wheel off unhook the end of the handbrake cable and pull it through the hole in the caliper. Remove the pin at the bottom of the caliper. It's held by an R clip - remove the clip and tap the pin through from the outside. Now the caliper will hinge upwards from the bottom, leaving the pads behind. Remove them together with the sensor wires.

The pistons wind back in different directions. anticlockwise for the righthand side. clockwise for the left. Note the position of the slot in the piston. It needs to be located so as to accept the nib on the rear of the pad.
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#3 goldenfrog

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Posted 14 June 2010 - 05:37 PM

It doesn't sound as though you're going about it the right way. When you've got the wheel off unhook the end of the handbrake cable and pull it through the hole in the caliper. Remove the pin at the bottom of the caliper. It's held by an R clip - remove the clip and tap the pin through from the outside. Now the caliper will hinge upwards from the bottom, leaving the pads behind. Remove them together with the sensor wires.

The pistons wind back in different directions. anticlockwise for the righthand side. clockwise for the left. Note the position of the slot in the piston. It needs to be located so as to accept the nib on the rear of the pad.


Hello John
Thanks for the reply, I read several of the posts on this forum before taking on the job, I removed the handbrake cable and I fully expected to see a pin and R clip, but they are not there. The caliper is held in place by 2 torx bolts, and I can't see any way of moving the caliper and leaving the pads behind. It looks like I may have a different caliper assembly. I have some photos but I do not know how to attach them to this thread, i can email them if it would help.
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#4 Johndouglas

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Posted 14 June 2010 - 06:01 PM

I think you're right. There isn't an R clip but there's a small bolt at the bottom of the caliper. If this is removed the caliper will swing upwards, leaving the pads against the discs. The pads will then lever out.
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#5 goldenfrog

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Posted 14 June 2010 - 07:21 PM

I think you're right. There isn't an R clip but there's a small bolt at the bottom of the caliper. If this is removed the caliper will swing upwards, leaving the pads against the discs. The pads will then lever out.


I have reassembled in original condition as I am on holiday for 2 weeks from tomorrow. But i can't recall seeing a small bolt at the bottom of the caliper. I have uploaded the photos to an image hosting site, so if anyone would like to take a look and offer advice I would be most grateful. http://img411.images.../g/brake1d.jpg/
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#6 coastline taxis

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Posted 14 June 2010 - 09:47 PM

It doesn't sound as though you're going about it the right way. When you've got the wheel off unhook the end of the handbrake cable and pull it through the hole in the caliper. Remove the pin at the bottom of the caliper. It's held by an R clip - remove the clip and tap the pin through from the outside. Now the caliper will hinge upwards from the bottom, leaving the pads behind. Remove them together with the sensor wires.

The pistons wind back in different directions. anticlockwise for the righthand side. clockwise for the left. Note the position of the slot in the piston. It needs to be located so as to accept the nib on the rear of the pad.

If you look at your caliber youl see at the top and bottom of the caliper there is what looks like rubber bellows (slide mounts). theres a 17mm nut at the end of the bellows secure this whith a spanner (open ended) right next to it youl see a 13mm bolt remove this bolt both top and bottom ones and your caliper will lift away ( if not lever it off with prybar)leaving your pads in place.
Easy job enjoy it
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#7 goldenfrog

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Posted 15 June 2010 - 05:43 AM

If you look at your caliber youl see at the top and bottom of the caliper there is what looks like rubber bellows (slide mounts). theres a 17mm nut at the end of the bellows secure this whith a spanner (open ended) right next to it youl see a 13mm bolt remove this bolt both top and bottom ones and your caliper will lift away ( if not lever it off with prybar)leaving your pads in place.
Easy job enjoy it


Thanks for your help.
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