Copyright © James R Meyer 2012 - 2018 https://www.jamesrmeyer.com
This applies to my Citroen 2012 C4 1.6 HDi with automatic handbrake. For service info see Citroen C4 Service.
Normally the handbrake is applied automatically when you turn off the engine. To keep the handbrake off when the engine is turned off, follow this procedure:
When checking the wear on the brakes, you should check both the inner and the outer pads; the inner pads can wear much quicker than the outer pads.
If the discs are worn to less than 20mm thickness, then you need new discs. Mine were well worn!
They are not hard to fit - if you have the right tools. The fixed part of the caliper assembly has to be removed in order to remove the disc. It is held in by two bolts that will be very tight. You can spray some WD40 or similar where the bolts protrude out the other side to help.
On mine the two bolts have special heads that need a special Torx E16 socket to remove them.
In my case, I needed to stop the pulling off the head of the bolt, so to keep the socket firmly on to the head of the bolt, I used a reverse clamp like this:
Make sure that you remove the two small Torx head screws holding the disc before attempting to remove the old disc!
If you are lucky, some judicious hammering with a heavy hammer will loosen it. If not, you will need a hub puller tool, so check before you start that you can borrow one if you have not already got one - just in case.
Replacement is a straightforward reverse of the above. I like to put a small dab of thread lock on the bolts that hold the caliper assembly in place.
Don’t over-tighten the two small screws on the disc - their only purpose is locate the disc properly - the wheel nuts hold the disc tightly in position.
As far as I am aware there are two makes of back brake that might be on this model, Lucas or Bosch. The one described here is Bosch.
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There is now a paper that deals with the matter of language and the diagonal proof, see On Considerations of Language in the Diagonal Proof.
There is now a new page on a contradiction in Lebesgue measure theory.
I found that making, adding or deleting footnotes in the traditional manner proved to be a major pain. So I developed a different system for footnotes which makes inserting or changing footnotes a doddle. You can check it out at Easy Footnotes for Web Pages (Accessibility friendly).
I have now added a new section to my paper on Russell O’Connor’s claim of a computer verified incompleteness proof. This shows that the flaw in the proof arises from a reliance on definitions that include unacceptable assumptions - assumptions that are not actually checked by the computer code. See also the new page Representability.
For convenience, there are now two pages on this site with links to various material relating to Gödel and the Incompleteness Theorem
– a page with general links:
– and a page relating specifically to the Gödel mind-machine debate:
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Copyright © James R Meyer 2012 - 2018