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Author Topic: Brakes  (Read 867 times)

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June 28, 2018, 08:58:33 PM
Reply #15

henrym3

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Re: Brakes
« Reply #15 on: June 28, 2018, 08:58:33 PM »
My understanding is it should pull a vacuum but it helps to operate other things as well like turbo actuators and such and as you don’t seem to have other problems then maybe it is a servo problem like Allen suggested
E53 X5 4.6is, Carbon Black, LPG, Paddle Shift, Dynavin N6, Lowered, 22"Wheels, Side Bars. Perfusion Exhaust
E30 M3 Black, S50B32 Engine, 6 Speed Box, Ireland Engineering ARBs & Big Brake Conversion, Lowered, 18"LMs, CF CAI, CF Splitter & Barge Board, ZM3 Quad Exhaust.
VW R32 Gone

June 28, 2018, 09:18:57 PM
Reply #16

X5Sport

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Re: Brakes
« Reply #16 on: June 28, 2018, 09:18:57 PM »
Positive pressure sounds completely wrong given all of the diagrams say ‘vacuum’, and you need a vacuum to make the servo operate correctly.  If the pump is putting out pressure rather than sucking it away then it would point at that being the probable cause.  Could be a seal or ‘O’ ring failure.

Newtis.info has the instructions.
:type:

June 29, 2018, 06:19:19 AM
Reply #17

Alan Gunn

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Re: Brakes
« Reply #17 on: June 29, 2018, 06:19:19 AM »
If it is blowing then you have a problem i would say.
It must be the pump but i have not had one fail and blow instead.

June 29, 2018, 11:15:39 AM
Reply #18

Silverfox58

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Re: Brakes
« Reply #18 on: June 29, 2018, 11:15:39 AM »
Ok thanks I'm out there today so will let you guys know
X5 30d

June 29, 2018, 01:01:51 PM
Reply #19

Silverfox58

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Re: Brakes
« Reply #19 on: June 29, 2018, 01:01:51 PM »
Now do you think this could be the problem



Just ordered one from bmw £76 pick it in morning,

Thanks for all your help  :beer2: :beer2:
X5 30d

June 29, 2018, 01:50:53 PM
Reply #20

Alan Gunn

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Re: Brakes
« Reply #20 on: June 29, 2018, 01:50:53 PM »
That might just be it  :)) :)) :)) ::)

June 29, 2018, 05:39:03 PM
Reply #21

X5Sport

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Re: Brakes
« Reply #21 on: June 29, 2018, 05:39:03 PM »
Interesting!  What was it rubbing against?  That almost looks like there was either a routing issue or a missing clip?
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June 29, 2018, 06:31:39 PM
Reply #22

Horizon

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Re: Brakes
« Reply #22 on: June 29, 2018, 06:31:39 PM »
£76 😳😳😳😳😳😳
2011 Kia Sorento KX3  2.2D 60 Plate Auto in black ( mine )
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Now Sold 55 plate, X5, 3.0 D Sport. Silv

June 29, 2018, 08:02:22 PM
Reply #23

Silverfox58

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Re: Brakes
« Reply #23 on: June 29, 2018, 08:02:22 PM »
I think  there's a missing clip as I only undone one on the back ,I will have to sort one before finishing it off.
X5 30d

June 29, 2018, 10:46:29 PM
Reply #24

X5Sport

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Re: Brakes
« Reply #24 on: June 29, 2018, 10:46:29 PM »
£76 😳😳😳😳😳😳

It’s special rubber.....contains Unobtainium which as we all know is hideously expensive  >:(
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June 29, 2018, 11:20:09 PM
Reply #25

Horizon

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Re: Brakes
« Reply #25 on: June 29, 2018, 11:20:09 PM »
£76 😳😳😳😳😳😳

It’s special rubber.....contains Unobtainium which as we all know is hideously expensive  >:(
Ever thought of going on Countdown 😀
2011 Kia Sorento KX3  2.2D 60 Plate Auto in black ( mine )
BMW E83 X3.  3.0d M Sport, 2008 in black ( now gone )
Honda CRV 2.2 d EX SUV 2011 in Silver. ( Wife's )
BMW E93 330i Convertible  Msport  2007.  ( Now sold )
VW Golf 2.0 TDI 140 GT 2010 ( now sold )
Now Sold 55 plate, X5, 3.0 D Sport. Silv

June 29, 2018, 11:31:37 PM
Reply #26

henrym3

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Re: Brakes
« Reply #26 on: June 29, 2018, 11:31:37 PM »
Of course everyone knows that, don’t they  :)
E53 X5 4.6is, Carbon Black, LPG, Paddle Shift, Dynavin N6, Lowered, 22"Wheels, Side Bars. Perfusion Exhaust
E30 M3 Black, S50B32 Engine, 6 Speed Box, Ireland Engineering ARBs & Big Brake Conversion, Lowered, 18"LMs, CF CAI, CF Splitter & Barge Board, ZM3 Quad Exhaust.
VW R32 Gone

June 30, 2018, 11:27:15 PM
Reply #27

svvg

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Re: Brakes
« Reply #27 on: June 30, 2018, 11:27:15 PM »
Had this on our e46 325 - on that engine there’s a valve which is called the “sucking jet pump” which is basically a one way venturi valve which is attached to the end of the hard vaccuum pipe which feeds into the servo (runs under the scuttle). It’s a sealed unit made of plastic - and in ours, the top/lid had started to separate. When I touched it, it fell apart. Replaced that and it’s been fine ever since - it was falling apart gradually - so mostly had brakes and then occassionally didn’t! On the e46 m54 engine the valve is located by the passenger side of the engine - by the scuttle - think you’ll have a similar set upnon yours - is part no 1 on the m54 engine on the below diagram:

http://www.realoem.com/bmw/enUS/showparts?id=BS32-EUR-02-2002-E46-BMW-325Ci&diagId=11_2885

July 06, 2018, 06:55:39 PM
Reply #28

Silverfox58

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Re: Brakes
« Reply #28 on: July 06, 2018, 06:55:39 PM »
Ok brakes all fixed now as I was there I fitted a new manifold, all new gaskets, so I hope this us the end of it next  week MOT,

Thanks guys for all your help
X5 30d

July 13, 2018, 06:55:58 PM
Reply #29

Silverfox58

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Re: Brakes
« Reply #29 on: July 13, 2018, 06:55:58 PM »
Got a new mot today ,here's to another year's  motoring in the 5
X5 30d