<Audi> Solved ABS problem

[quk@isham-research.demon.co.uk (Phil Payne)]

In message <3.0.32.19971013214200.006b2388@popd.ix.netcom.com> Steve Manning writes:

> BTW, the 'press-in' nature of the ABS sensors strikes me as rather cheesy.
> Others I have worked on have been secured with a bolt or something more
> secure.  As far as setting the gap is concerned, I just pushed them all the
> way in until they bottomed, and pried them out a tiny bit.  They worked
> fine with this rather crude procedure.  Bentley was no help with this whole
> process.........SLM

The proper procedure is not at all crude.
 
The PVC cap on the sensor (part # 437 927 809) is a one-time ablative.  The 
microfiche is quite explicit - the cap _MUST_ be discarded when the sensor is 
removed, and replaced with a new one.  The sensor is then replaced and pushed 
in until it _touches_ the rotor.  Obviously, the cap gets partly worn off as 
soon as the vehicle moves - but the thickness of the _NEW_ cap sets the sensor 
gap very accurately indeed.

-- 
 Phil Payne
 Committee Member, UK Audi [ur-]quattro Owners Club