Changing Pads & Bleeding brakes

television

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A survey has shown that on cars without fault codes for the ABS it is bad practice to force the pistons back into the caliper. Dirt particles get forced back into the ABS system and it becomes expensive to find the fault.
Clamping the pipe and undoing the bleed nipple is the prefered method.
I think it is a good Idea even if you have fault code read out.

I can recall a case here recently the no fluid would come out of the rear calipers due to sediment blocking the filling tank.

If you do clamp only use the correct clamp

Malcolm
 

clive williams

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television said:
A survey has shown that on cars without fault codes for the ABS it is bad practice to force the pistons back into the caliper. Dirt particles get forced back into the ABS system and it becomes expensive to find the fault.
Clamping the pipe and undoing the bleed nipple is the prefered method.
I think it is a good Idea even if you have fault code read out.

I can recall a case here recently the no fluid would come out of the rear calipers due to sediment blocking the filling tank.

If you do clamp only use the correct clamp

Malcolm

Good thinking Malcolm. Point noted.

As an aside though, the cost of repairing/replacing the ABS module becomes less viable the older the car with a typical ABS replacement ~ £3000. I'm not a great fan of ABS as a system and prefer non-ABS given the choice and therefore considered plumbing out the ABS module should it come to replacement time on any of my vehicles - Any thoughts?

Clive

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anyweb

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ABS here in sweden sure is required

when you take the drivers license test here, it's mandatory that you take a 3 hour 'snow/ice course' which covers abs/breaking on ice conditions and so on.

the cars that they stick you in (usually full specced VW golfs) have a switch in them to turn ABS on/off.

You are given the chance (many times) to try stopping or swerving to avoid a target in rain/ice/snow/oil conditions with and without ABS (via the switch).

Trust me, without ABS, you really don't have a chance

one other point to note:- at the start of the ICE season here (must have been november, i cant recall) we were coming to a stop sign on a 50kph road, and slowed to a stop as normal when the ABS kicked in. There were NO visable signs of ice on the road (of course it was cold) but the ABS told a different story, after further testing, indeed the road was an ice rink.

just my 2 cents

cheers
anyweb
 
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television

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clive williams said:
Good thinking Malcolm. Point noted.

As an aside though, the cost of repairing/replacing the ABS module becomes less viable the older the car with a typical ABS replacement ~ £3000. I'm not a great fan of ABS as a system and prefer non-ABS given the choice and therefore considered plumbing out the ABS module should it come to replacement time on any of my vehicles - Any thoughts?

Clive

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You cant pass an MOT without the ABS light going out after a fixed time.
What I do for friends is to make up a little timer board that turns the ABS lamp off at a fixed time. Start timing yours or sneak into Halfords and look at the ABS chart on the wall for your car. You only have to disconnect the live to the high presure pump and you have normal brakes.

Regards Malcolm
 
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turnipsock said:
Exactly what I did today when changing my rear pads.

Good thinking Batman

Cheers Malcolm
 

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If the ABS unit is removed and the ABS lamp is removed the car would pass an MOT no problem because it does not have ABS fitted. If ABS is fitted as malcom says the light must operate or the car will fail.
 
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anyweb said:
ABS here in sweden sure is required

when you take the drivers license test here, it's mandatory that you take a 3 hour 'snow/ice course' which covers abs/breaking on ice conditions and so on.

the cars that they stick you in (usually full specced VW golfs) have a switch in them to turn ABS on/off.

You are given the chance (many times) to try stopping or swerving to avoid a target in rain/ice/snow/oil conditions with and without ABS (via the switch).

Trust me, without ABS, you really don't have a chance

one other point to note:- at the start of the ICE season here (must have been november, i cant recall) we were coming to a stop sign on a 50kph road, and slowed to a stop as normal when the ABS kicked in. There were NO visable signs of ice on the road (of course it was cold) but the ABS told a different story, after further testing, indeed the road was an ice rink.

just my 2 cents

cheers
anyweb


Been there and done it Anyweb, great fun, I had the chance to go back a few times, I was ok in the end, but I know that I would never become a rally driver. I see that you are still getting plenty of snow, spoke to my ex this evening, she is in Tullinge. Hope you had a nice holiday.

Malcolm
 

clive williams

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television said:
You cant pass an MOT without the ABS light going out after a fixed time.
What I do for friends is to make up a little timer board that turns the ABS lamp off at a fixed time. Start timing yours or sneak into Halfords and look at the ABS chart on the wall for your car. You only have to disconnect the live to the high presure pump and you have normal brakes.

Regards Malcolm

Thanks for the info. I don't have any problems with any of my vehicles ABS systems yet. It is something I've pondered as a strategic level. The info is parked in the grey matter and will be consulted if required.

Clive

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