Brake Disks - CITROEN XM Internet Reference

95 Brake Disks

The brakes
95 Brake Disks
Replacing the brake discs
While the front wheels were off to bleed the brakes, the opportunity was taken to check the thickness of
the brake pad material and the discs themselves. Brake pads OK discs recording 22.5mm only! On this
late model, the discs start at 26mm and should be replaced at 24mm. The piggy bank had to be raided
to fund the purchase of a pair of discs at around £45 each (Citroen dealer price in the region of £120
each!)
To start off with the replacement, the parking brake levers on the calliper were levered back (brake off, of
course) so that the cables could be pulled out of their locations. The tiny locking clip was pulled out of
the retaining pin, which was itself then knocked out, which released the anti-ranle plate and freed the
brake pads. The brake wear warning leads were then disconnected. The calliper assembly was then
swung upwards and retained there temporarily while the piston in each calliper was pressed in while
being wound clockwise back into the calliper at the same time.
Calliper and disc removal
Removal of the calliper was by taking out the two 18mm bolts and it was then tied up out of the way.
Then the two disc retaining screws were removed (cross head or torx screws have been fined at
different times so get the correct tool ready fret). The discs fumed out to be almost rusted on to the hubs
and had to be "assisted" with a lump hammer. The new discs themselves and their mating faces on the
hubs were cleaned of dirt, grit, rust and grease before fitting.
Checking the run-out
With the retaining screws tight and the calliper bolted back into position, it was possible to check that
there was no visible run-out when the disc was fumed (0.005mm is allowed). New pads were fined and
everything else replaced. The brake pedal was operated to make sure that the pads were in contact
before dnving off.
For those who would like to do the job more professionally, tools are available to back off the calliper
piston.
Sykes-Pickevant offer a superb tool, Ref. No. 660665 with adaptor for the XM Ref. No. 036109. at
around £45.50;
Draper tools offer Ref. No. 33606 with XM adaptor at around £75 and Citroen Tool OUT10901 IT also
sells at about £45.50.'
(Thanks to Brian Primmer and the CCC)
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