Forums / The Garage / Hydraulic hoses; where and what?

C6owners :: Forums :: C6 Support :: The Garage


Hydraulic hoses; where and what?	Please Register to enjoy additional Member Benefits

Author

Post

Frode

Sat May 18 2019, 07:13pm

Joined: Jun 08 2017

Member No: #3171

Location: Bergen

I would be very grateful if someone could direct me to a schematic or something that explains where all the hoses to and from the hydraulic tank and pump goes.

There are two hoses coming out under the right hand wing, directly downwards (above the inner protective cover). There is a large hose (3+cm diameter?) and a smaller one (2cm?). One of them drains the hydraulic system. Is that the smaller one? And what is the larger one? The smaller goes forward and to the radiator area - across, I would guess. Is this a return hose? It leaks in a joint, but it would be good to have an idea of how much LDS will be dumped in my face if I am unlucky... There was a sticker on the hose reading 9684062680. However, that does not yield anything in a web search.

Best,
Frode

rwb

Sun May 19 2019, 11:05am

Joined: Dec 22 2014

Member No: #1988

Location: Telford

I was told by a former Citroen tech that the long numbers that begein with a 9 are the actual part numbers; the XXXX.YY format numbers in ServiceBox are something else. I don't know how to convert between the two.

For schematics look in the ServiceBox parts catalogues. Most of the diagrams are also on here in the Technical Documents section - Click Here -

Hydraulic pipes are megabucks from Citroen.
I wonder if it would be possible to make replacements using braided brake hose?

e3steve United Kingdom

Sat Jun 15 2019, 04:29pm

Joined: Jan 21 2013

Member No: #1163

Location: Warsash, Hants & Palma de Mallorca, Spain

rwb wrote ...

...Hydraulic pipes are megabucks from Citroen.
I wonder if it would be possible to make replacements using braided brake hose?

Nope. The technology is specific to Citroën (and older RR/Bentley), the unions are of extremely fine tolerances, with precision seals and torque settings, and also must not be overtightened; as the fluid pressure increases the seals are forced to expand, thus their sealing capabilities increase. Those microbore pipes carry 2500psi/175+ Bar, and should not be messed with.

A PO tried it with my D Safari — they all had to be ripped out and replaced with OEM items.

The one downfall (C5 & C6) in their execution is where the hardpipe is found to be mated with flexi (to inhibit vibrational transmissions); those crimped unions are known to eventually fail, and replacement is the only option.


Jump: Back to top User Colour Key: Head Administrator, Administrator, C6 owner, Technical Expert, C6 Premier Discount Club