Reply With QuoteNot sure if the Defender is the same, but the Discovery with ABS has a pressure reducing proportioning valve. Known to leak and difficult to see where from.
Similar looking valve to this: https://rimmerbros.com/Item--i-ANR3194
Moderator
Hi all,
We have a brake fluid leak we cant track down. It appears to be coming from the WABCO Pump area or master cylinder reservoir, but cant determine. We have had a puddle of brake fluid under the car and in the foot well. Pretty sure not the clutch master cylinder as fluid level has only dropped in the brake reservoir not the clutch fluid reservoir.
Does not appear to be the unions where the pipes enter or leave the WABCO unit.
Can see fluid underneath, but cant determine where it is coming from as no real pooling or dripping. The unit being in a bad position is difficult to see below, is there anywhere underneath they can leak from?
The odd thing is it seems to have dumped about 50-100mls and then stopped.
Any ideas please.
Cheers
Craig
2011 Discovery 4 TDV6
2009 DRZ400E Suzuki
1956 & 1961 P4 Rover (project)
1976 SS Torana (project - all cash donations or parts accepted)
2003 WK Holden Statesman
Departed
2000 Defender Extreme: Shrek (but only to son)
84 RR (Gone) 97 Tdi Disco (Gone)
98 Ducati 900SS Gone & Missed
Facta Non Verba
Wizard
SupporterNot sure if the Defender is the same, but the Discovery with ABS has a pressure reducing proportioning valve. Known to leak and difficult to see where from.
Similar looking valve to this: https://rimmerbros.com/Item--i-ANR3194
ChatterBox
No I know mine doesn’t
Craig you can get the modulator out with difficulty
They often leak at the shuttle valves or there could be some other issue
Never seen one leak that severely from the modulator
Moderator
What is weird is it seems to have stopped, it is not a constant leak. Has me baffled, but yes can get the modulator out as have replaced the shuttle valve about 3 years ago so maybe there, just a PIA job in a Defender.
Cheers
Craig
Originally Posted by djam1
2011 Discovery 4 TDV6
2009 DRZ400E Suzuki
1956 & 1961 P4 Rover (project)
1976 SS Torana (project - all cash donations or parts accepted)
2003 WK Holden Statesman
Departed
2000 Defender Extreme: Shrek (but only to son)
84 RR (Gone) 97 Tdi Disco (Gone)
98 Ducati 900SS Gone & Missed
Facta Non Verba
Hi Craig, have you ever discovered what the issue was, i have the same issue on my tdci, leaking on the concrete floor not footwell. Everything works fine, no lights and no error codes on my nanocom. Just a weird leak and i dont know where to start looking?
any help will be greatly appreciated
thank you
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