On Thu, 25 Jan 2018 16:18:22 +0000, "dennis@home"
wrote:

On 25/01/2018 13:15, The Other Mike wrote:
On Thu, 25 Jan 2018 00:05:35 -0800 (PST), harry
wrote:

https://www.express.co.uk/life-style...18-diesel-cars

Plus diesel emissions to be lower.

"Other changes include checks to whether brake discs are obviously warn, oil
contamination of the discs and how well they are securely attached to the wheel
hubs. "

To see how well discs are "securely attached to the wheel hubs" requires removal
of the wheel in just about all cases

In the case of inboard discs they are not even attached to the wheel hubs

From
https://www.gov.uk/government/upload...2018-draft.pdf
Page 12

"The MOT test must be carried out without dismantling"



Its only a draft so it may change.

Except the no dismantling thing has been in the MOT handbook for a very long
time knocking up 20 years to my knowledge and maybe 'forever'

Have a vehicle with undertrays that obscure the bottom of the engine, suspension
parts and steering and the MOT document you get back makes specific mention of
undertrays preventing inspection.

Back in 1999, with the first tests of the Lotus Elise some garages refused to
test without removal of the undertrays either by the owner or as a chargeable
item. After a number of complaints VOSA got involved and sanctioned testing of
those vehicles and many others since without any removal requirements. Testers
do not remove the undertrays, they only make an advisory note on the MOT
documentation they provide after the test.

For example from one of my recent MOT's

engine covers obscuring testable items.
undertrays fitted obscuring testable items.

Going back to the wheel, if they did remove them, then what torque setting would
they use to reattach the wheels when the vehicle is not listed in any data
handbook or the owner either refuses or is unable to provide that figure?

What about the situation where three eared knock on wheels are fitted and the
application of a torque setting requires a specialist spanner adaptor that is
not, nor ever will be in the toolkit of the MOT testing station. I'll admit
that such vehicles will now fall outside the 40 year rule but there is nothing
preventing an owner of any vehicle of any age submitting it for a test. That
ranges from something from the 19th Century to one straight out of the showroom.

The public liability implications of removing parts to perform a safety test are
huge.

I would suggest the "securely attached to the wheel hubs" requirement for brake
discs is inherent untestable for virtually all vehicles except those with 'flat
discs' and removable disc bells, and for those vehicles with that arrangement of
they have cooling air scoops feeding the hub to disc gap there is zero visibilty
of the fixings.
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