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Author Topic: Is this OK for the MOT?  (Read 3083 times)

Offline Horney

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Re: Is this OK for the MOT?
« Reply #10 on: 08 August 2009, 23:32 »
Will LL's have ABS as it wasn't a GTI to start with, think it will have just had the noddy compensator like the MKII.

Nick
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Offline AudiA8Quattro

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Re: Is this OK for the MOT?
« Reply #11 on: 08 August 2009, 23:39 »
Quote from: Horney on 08 August 2009, 23:14
I thought the one on the MKII just adjusted the amount of braking effort to the rear when it's fully loaded and nothing more clever than that. Mine is disconnected from the Beam so it doesn't do anything anymore.

Nick

All of these valves are load sensing. The more weight on the rear axle the more pressure is applies to rear brakes.
Therefore if there is no weight on the rear axle there will be no restriction of hydraulic pressure to the rear brakes.
This is potentially dangerous and should fail an mot.
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Offline Horney

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Re: Is this OK for the MOT?
« Reply #12 on: 08 August 2009, 23:42 »
Mine was MOT'd last week and it failed, but not on that item. Mines a track car mostly and rarely used on the road but I've always felt the brakes to be perfectly balanced even with the track wheels loaded up in the back which drops the ride height about 15-20mm at the rear with all that weight.

Nick
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Offline AudiA8Quattro

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Re: Is this OK for the MOT?
« Reply #13 on: 08 August 2009, 23:45 »
Thats interesting, it should of failed, the tester must of missed it.
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Offline Horney

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Re: Is this OK for the MOT?
« Reply #14 on: 08 August 2009, 23:47 »
It's been through 7 MOT's like that at about 4 different garages and never been picked up.

Nick
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Offline AudiA8Quattro

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Re: Is this OK for the MOT?
« Reply #15 on: 09 August 2009, 00:03 »
Maybe by disconnecting the valve the pressure to the rear brakes is constantly limited, regardless of rear load. Maybe if this is the case then the car will pass an mot no problems.
This is not the same as removing the valve from the system altogether...
Any comments?
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Offline Horney

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Re: Is this OK for the MOT?
« Reply #16 on: 09 August 2009, 00:13 »
Yeah I'd agree with that as mine is just disconnected but the fluid still flows through it.

nick
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Offline Reasty

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Re: Is this OK for the MOT?
« Reply #17 on: 09 August 2009, 09:25 »
I had to replace my rear compensator a few years ago as it was completley seized and it failed the mot
and was noted on the fail sheet with dangerous next to it in big letters,they arnt alot of money so I would say if it's there then it's there for a reason and it's better to be safe then sorry.altho I must admit I am quite anal about my mk2 if sumink is broken or looks on it's way out it gets a new one pronto.
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Offline topher

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Re: Is this OK for the MOT?
« Reply #18 on: 09 August 2009, 09:35 »
Quote from: AudiA8Quattro on 09 August 2009, 00:03
Maybe by disconnecting the valve the pressure to the rear brakes is constantly limited, regardless of rear load. Maybe if this is the case then the car will pass an mot no problems.
This is not the same as removing the valve from the system altogether...
Any comments?

That's my understanding of it. If it's not on the beam then regardless of weight in the back the spring won't be doing anything to change the brake compensation and it'll just stick to it's basic setting. Can't comment on removing it completely because I don't know anyone stupid enough to do it :lipsrsealed:
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Offline JC

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Re: Is this OK for the MOT?
« Reply #19 on: 09 August 2009, 10:00 »
Quote from: topher on 09 August 2009, 09:35
Quote from: AudiA8Quattro on 09 August 2009, 00:03
Maybe by disconnecting the valve the pressure to the rear brakes is constantly limited, regardless of rear load. Maybe if this is the case then the car will pass an mot no problems.
This is not the same as removing the valve from the system altogether...
Any comments?

That's my understanding of it. If it's not on the beam then regardless of weight in the back the spring won't be doing anything to change the brake compensation and it'll just stick to it's basic setting. Can't comment on removing it completely because I don't know anyone stupid enough to do it :lipsrsealed:

going by this thread, you do now  :grin:
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