HELP!!! how do i get the ABS sensor out??:?URGENT

[Tom]

Re: re

Remove the bulb

There is no test or provision for test of the actual operation of the ABS system.

 

[Gerry]

Re: re

I don't wish to belabour the point and **** everyone off but ...

If a car has ABS fitted and a warning light forms part of the system then if it fails to come on (as would happen if the bulb were removed) then the sequence would not be functioning properly = MOT failure.

Perhaps MOT testers would just ignore it but my mechanic told me that the garage which he uses for his customers MOT's would definitely fail my car if the light did not come on, stay on for a couple of seconds, and go out again.

Sorry for being pedantic.

Gerry

 

[Tom]

Re: re

My non-ABS Bravo has the provision on the dash for an ABS light, just no bulb behind it.

It never comes on so surely my car will fail its MOT?

 

[Gerry]

Re: re

No - because your car did not have ABS fitted!

Therefore no check of ABS system.

QED - no?

G

 

[Tom]

Re: re

So? Its still got the light and they are supposed to check it comes on & goes off, but it doesn't.

 

[Craig]

Re: re

thank christ my car has an handbrake indicator. LOL

 

[Gerry]

Re: re

This is rapidly becoming the Tom & Gerry show.

You are being mischevious Tom - and you know it.

As you well know, car dashes are standardised to include all sorts of things which, depending on the model, may or may not be fitted - air con, rev counters etc.

From what I can gather from the literature on the testing of brake systems, if a vehicle has ABS then its operation forms part of the MOT test.

The issue may be confused as some testers may choose to ignore this aspect of the test. But the fact remains that a check of the system forms part of the test.

There - I've said my piece!

Gerry

 

[Craig]

Re: re

Tom and Gerry... Doh!

 

[Gerry]

Re: re

Fancy playing mediator Craig?

(Or Spike the dog!!)

 

[Tom]

Re: re

BUT THEY DO NOT TEST THE OPERATION OF THE ABS!!

From the MOT testers handbook:

" Brakes

Inside the car

Anti-lock braking system (if fitted) warning lamp is checked for:

function
sequence of operation
Footbrake

reserve travel on the footbrake so that it does not go down to the floor
pedal rubber not worn to excess
correct operation of the servo assistance system
Reserve brake

This could be a handbrake or a footbrake. Checked for reserve travel so that it doesn't reach the stops on application. The mountings will be checked for security and/or corrosion.

Under bonnet checks

master cylinder and servo unit are checked for fluid leaks with the engine on and the brakes applied
servo unit will be checked to ensure it is operating correctly
visible metal or flexible brake pipes will be checked for corrosion, condition, breakages or leaks
Under vehicle checks

With the assistant applying load to the footbrake:

flexible brake pipes and any other metal brake pipes visible beneath the car are checked
discs and drums checked for condition and contamination
brake back plates and caliper securing devices are checked for condition and security
condition of the brake pads will be checked if visible
The assistant operates the handbrake and the condition of the linkages and/or cables is checked.
on some vehicles there will be a brake compensating valve beneath the car which will need to be inspected for fluid leaks
Brake performance check

The performance of the front and rear brakes and handbrake are checked for efficiency and balance using specialised equipment.
"

Where in that text does it mention testing the operation of the ABS? Nowhere.

The ONLY test they perform which is non-visual is the brake performance test which DOES NOT test ABS.

Note also it only mentions:
"Anti-lock braking system (if fitted) warning lamp is checked for"

Not if ABS is actually fitted.

 

[Gerry]

Re: re

I give up!

1) If ABS is fitted a check is apparently done on the warning light sequence.

2) Does it not therefore follow that in such circumstances that if the "light sequence" does not follow normal practice (i.e. by not coming on or by staying on permanently) then this is indicative of a fault.

3) Consequently, such a fault appears to be a reason for an MOT fail.

The case for the defence rests M'Lud!!

 

[Tom]

Re: re

Our Saab has ABS and no light on the dash, nor does it have a space for a light, nor is there any reference to a light in the manual.

My van has a light marked 'ABS' which never lights. It doesn't have ABS though.

Case closed.

 

[Gary F]

Re: re

IF the car has ABS fitted the light must work or MOT failure.

IF NOT then its not part of the test.

Simple really.

Just because MOT technicians choose to ignore it doesn't mean its not part of the test.

Your Saab may not have a light so they are unable to test this section, the lighting sequence will not exist so your car will pass as long as the braking system is ok.

Your other car doesn't have ABS therefore it won't be part of the test, they will ignore any lights saying abs on the dash as they are irrelevant.

Taken from mottester.co.uk

I bought a car with the extra option of ABS.
The ABS has failed as shown by the ABS warning light.
The basic function of the brakes is unimpaired.
Would the car fail its MOT just because the ABS is non functional ?
Thank you. Stan

I am sorry to say that the regulations here are very clear. If there is a problem signalled by the ABS light, then that is an MOT failure. The Testing station would have no discretion at all.
The ABS system will have a special sequence of warning lights when the ignition is switched on to indicate that the system is functioning correctly. That is tested for the MOT. The ABS as such is not tested. So if, as a result of your ABS failure the warning lights show an incorrect indication, then that will result in an MOT failure. - MOTT

Its true that MOT testers may not have each individual sequence which is probably why they ignore it. Maybe its a universal system, I don't know but IT IS part of the test.

You may be able to take the bulb out out get it too pass but this is no different to sticking reflectors on or putting the cat back on.

Gaz

 

[Tom]

Re: re

The Saab has ABS therefore by your logic the light must work. It doesn't have a light so surely its an MOT failure.

How do they know that the Saab has ABS and my van doesn't?

Do you not understand that they don't test the actual ABS system. Its not like replacing the CAT.

If they just looked under the car to see if it had a cat but then didn't do an emissions test it would be the same. Your car won't fail for not HAVING a cat, it will fail due to the emissions test.

 

[Craig]

Re: re

I don't see Paul's car passing its mot with the warning light on

 

[Anonymous]

Re: re

PERSONALLY i dont give a **** doesnt he want to know how to get it out?

Smee

 

[Paul R]

Re: re

LOL @ SMEE!!!!

Yeah i wanted to get it out but never mind! done it now! i left it in the hub and unplugged it up in the engine bay... now the drive shafts are out and the sub frame is down!!!

Engine will be out this weekend hopefully!

Paul R

P.S.Who said my light was on?

 

[Craig]

Re: re

 

[Gary F]

Re: re

The regulations state:

If there is a problem signalled by the ABS light, then that is an MOT failure.

If your Saab doesn't have a light then it can't have a problem can it?

Wrong example with the CAT but taking the light out to pass is equivalent to sticking reflectors on, putting the right numberplates on etc.

Take the situation with classic cars, they have a different, maybe more relaxed test than newer cars, the MOT test has to evolve as cars do, ill bet that every car made now with abs will have a warning light on the daashboard, Saab obviously didn't see it as a requirement then.

Gaz

 

[Tom]

Re: re

Again reflectors are a legal requirement, ABS or working ABS is not (thankfully).