hi, a neighbour has asked me some advice and has got me stomped, he is loosing brake fluid 0n his 2004 l322 at an alarming rate but have got no idea where its going, cant see any thing on the floor, all the calipers are dry, ABS unit is dry nothing around servo or master
when i say alarming rate four full pots in 3 days or a pot an hour of driving but can not see where it is going
any ideas V8 facelift Range Rover Autobiography 22" wheels.
1976 Harley Davidson Iron Head Sportster

Either up above the fuel tank, or in the pipes to the front where they go through the plastic covers behind the cills?

It's go to be going somewhere, 3 pots is quite a lot. Check behind the front inner arches too.

Get him to pump the brakes while you look underneath. Unless it's a big hole you will probably only see it leak out when braking. There is nothing that can't be fixed with a hammer😜😜
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Yep most likely to be on the "hidden" pipe run after the pipes exit the ABS modulator and disappear behind the LHF inner wheelarch, then down under the chassis rail to the back, under the tank cover.

Not sure why there is no evidence, can't think of anywhere it could pool, unless there is anice place under the tank cover? .
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Previous: L322 Range Rover TDV8 3.6 2008; L322 Range Rover TD6 3.0 2002; P38A Range Rover V8 1999

If the diaphragm in the servo fails then brake fluid can get drawn back through the servo and either into the engine if petrol or into the vacuum pump if diesel.... If petrol you usually get white smoke out the exhaust.... Outside possibility the fluid is running back inside the car from the servo and getting soaked up by the carpet and soundproofing behind the brake pedal.

I still recon the most likely thing will be a hidden pipe and it's pooling somewhere though... Pete
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
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Thanks guys
i have seen the pipe that goes the inner wing where does the pipe end up, is there any catch tanks V8 facelift Range Rover Autobiography 22" wheels.
1976 Harley Davidson Iron Head Sportster

Brake master cylinder seals could be leaking thus allowing brake fluid to be drawn back into brake servo. Can do this for ages and fill brake servo with no signs of external leakage.

HI
checked the servo looks bone dry, i just thought by now there would be a drip some where unless it is being soaked up by the carpet V8 facelift Range Rover Autobiography 22" wheels.
1976 Harley Davidson Iron Head Sportster

if its going into the servo it will be drawn into the inlet system and burnt out through the engine so you may not see it. White/light grey smoke? 2015 Range Rover VSE 4.4 SDV8. 1998 BMW 840 Sport, 2008 Aston Martin DB9
2009 Triumph Bonneville, 1959 Triumph Bonneville, 1969 Triumph Bonneville, 1975 T160 Triumph Trident, 2014 Suzuki Gladius, 1990 Harley Davidson Fat Boy.

I thought I said that four posts ago....  Pete
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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Hi
ok getting a bit more involved, servo is bone dry, cant find any thing around the carpets, the pipe that comes from the res and goes out through the inner wing, where does that go, is it a breather as this has got to be where its going
daveo V8 facelift Range Rover Autobiography 22" wheels.
1976 Harley Davidson Iron Head Sportster

It goes to the Pre-Charge pump used for DSC, HDC and ETC. which is mounted on the inner wing. It sucks fluid from the reservoir and injects it into system prior to the ABS module bypassing the master cylinder and ensuring adequate pressure.

thanks looks like the inner wing is coming out
up to four pots and not a sign of a drip V8 facelift Range Rover Autobiography 22" wheels.
1976 Harley Davidson Iron Head Sportster