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TDV8_Tommy



Member Since: 20 Feb 2019
Location: Pinoso, Valencia
Posts: 398

Spain 2012 Range Rover Westminster TDV8 Baltic Blue
Brake Servo - severed non-return valve...

Hello everyone,

This afternoon, I experienced an issue with my car where the brakes were not functioning properly. I noticed that even when the car was in gear and creeping, it was unable to come to a complete stop. Upon inspection, I discovered that the non-return value at the base of the verso had completely split from the hose. The peddle is rock hard. Here is a picture for reference:


Click image to enlarge


You can see the hole where the tube used to be connected to.


I have a few questions regarding this issue. Firstly, can this part be pulled out in a forward motion? Additionally, I have been unable to locate the part number and was wondering if anyone here knows it. Lastly, is it possible that this part is a universal item shared amongst other car models?

Since the car is currently unusable and my in-laws will be visiting on Saturday, I would greatly appreciate any help in resolving this issue as soon as possible.

Thank you in advance for your assistance.

Best regards,
Tom 2012 4.4 TDV8 Westminster - Baltic Blue, Jet interior
1997 P38 2.5 DSE auto & 1998 P38 2.5 DT Manual
1988 Vogue 3.5 EFI - Manual, gone.
2004 Volvo C70 2.0T convertible, had since new.
2007 Mazda MX-5 2.0 Sport Roadster/Coupé, had since new.
2024 Mini Cooper S cabrio, JCW kit, 2.0, DCT auto

Post #672813 6th Sep 2023 3:28pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3241

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Looks like another case of age failed plastic parts. AFAIK the valve comes as part of the whole hose assembly as mine is leaking vac overnight and I looked into replacing it. Tricky to get to and you may need a special tool to lever it out of the servo housing.

Click image to enlarge
 2012 TDV8 Vogue (L322)

Post #672819 6th Sep 2023 4:40pm
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TDV8_Tommy



Member Since: 20 Feb 2019
Location: Pinoso, Valencia
Posts: 398

Spain 2012 Range Rover Westminster TDV8 Baltic Blue

Thank you for your help, GayJee.

I contacted Rimmer Bros and they confirmed your information. It's frustrating that the valve can be replaced, but it's not sold separately. I'll need to spend around €130 to get it.

Based on its appearance and my research on Google, the valve seems to be made by a German manufacturer for BMW and has a logo of an 'A'. It definitely has a BMW-esque look to it.

Click image to enlarge
 2012 4.4 TDV8 Westminster - Baltic Blue, Jet interior
1997 P38 2.5 DSE auto & 1998 P38 2.5 DT Manual
1988 Vogue 3.5 EFI - Manual, gone.
2004 Volvo C70 2.0T convertible, had since new.
2007 Mazda MX-5 2.0 Sport Roadster/Coupé, had since new.
2024 Mini Cooper S cabrio, JCW kit, 2.0, DCT auto

Post #672821 6th Sep 2023 4:55pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3241

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

The hose is a hard plastic and heat bonded / shrunk to the fittings so likley why it's not a separate part but that doesn't mean you can't find a similar part and connect it to the hose by other means. 2012 TDV8 Vogue (L322)

Post #672824 6th Sep 2023 5:13pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3241

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

There are loads on Ebay/Amazon if you search BMW brake servo check valve /non return valve etc. 2012 TDV8 Vogue (L322)

Post #672829 6th Sep 2023 5:33pm
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TDV8_Tommy



Member Since: 20 Feb 2019
Location: Pinoso, Valencia
Posts: 398

Spain 2012 Range Rover Westminster TDV8 Baltic Blue

The car has been temporarily fixed and a new LR part is on order.

Thank you all Thumbs Up 2012 4.4 TDV8 Westminster - Baltic Blue, Jet interior
1997 P38 2.5 DSE auto & 1998 P38 2.5 DT Manual
1988 Vogue 3.5 EFI - Manual, gone.
2004 Volvo C70 2.0T convertible, had since new.
2007 Mazda MX-5 2.0 Sport Roadster/Coupé, had since new.
2024 Mini Cooper S cabrio, JCW kit, 2.0, DCT auto

Post #672890 7th Sep 2023 11:07am
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3241

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

Did you fix it OK? I've just replaced the valve (had to make a tool to extract it) and joined it to the existing pipe with some rubber hose. The old valve shows a slow leak when on my 'Milty vac' but will know for sure when I start it up on Monday. 2012 TDV8 Vogue (L322)

Post #674053 22nd Sep 2023 4:32pm
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TDV8_Tommy



Member Since: 20 Feb 2019
Location: Pinoso, Valencia
Posts: 398

Spain 2012 Range Rover Westminster TDV8 Baltic Blue

We did a temporary fix, a plastic pipe bridge between the pipe and valve. A double male fitting, I think water irrigation piping!

It worked fine but I wasn’t content ‘bodging’ a brake component, so replaced the whole line…160€.

An easy fit a couple of days ago.

It’s the third broken plastic pipe in a week, heat fatigue failures. 2012 4.4 TDV8 Westminster - Baltic Blue, Jet interior
1997 P38 2.5 DSE auto & 1998 P38 2.5 DT Manual
1988 Vogue 3.5 EFI - Manual, gone.
2004 Volvo C70 2.0T convertible, had since new.
2007 Mazda MX-5 2.0 Sport Roadster/Coupé, had since new.
2024 Mini Cooper S cabrio, JCW kit, 2.0, DCT auto

Post #674059 22nd Sep 2023 5:24pm
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Heathy



Member Since: 19 Feb 2017
Location: Marks Tey, Essex
Posts: 53

United Kingdom 2011 Range Rover Vogue SE TDV8 Fuji White

I did this a couple of weeks ago
My pipe had snapped at the base.
I took a valve from a servo from a D2(exactly the same) cut the pipe with the old bit inside, then i heated the pipe and pushed it on tight.
All 100%.. Vogue SE 2011 MY 4.4TDV8 in Fuji White
RSE, Surround Cameras and Deployable Side Steps

Post #677258 4th Nov 2023 5:40pm
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JayGee



Member Since: 27 Jul 2021
Location: London
Posts: 3241

United Kingdom 2012 Range Rover Vogue 4.4 V8 Orkney Grey

I'm still loosing vacuum out of the servo when parked for more than a day so it wasn't the valve even though it was leaking. I can live with it though. 2012 TDV8 Vogue (L322)

Post #677269 4th Nov 2023 7:25pm
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mxpUz6Q



Member Since: 19 Sep 2022
Location: here
Posts: 12

Hi,

I got here because the same just happened to me when barely touching the vaccum line while trying to shine a light on the brake reservoir to check the level. It snapped off so easiliy, the next big pothole may have done it as well - which seems a bit of a safety issue to me ):



I was not going to shell out €180 just to have the same problem again in a few years time. So after a bit of research I got the non-return valve off a classic Defender, part number STC493 (£5 from Britpart, €11 on the continent). It has the same 15mm OD barbed end on the servo side. The vacuum hose end is around 11mm OD which incidentally is exactly the outer diameter of the shrunk-on vaccum pipe with the broken-off bit inside it. So with a bit of 10mm ID vacuum hose and two hose-clamps (just for paranoia's sake) it's back together about 2cm longer than before and easily serviceable from now on:



The broken-off end left in the pipe keeps it from collapsing under pressure of the hose-clamps (beyond the considerable stiffness of the pipe itself).

I'd never have thought that it would be a Britpart part of all things making my Rangie safer and more reliable. Smile

My takeaway: From now on I'll be giving those safety-relevant brittling plastic parts a wiggle from time to time while having the replacements on standby. :/

Post #703082 25th Oct 2024 7:12pm
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