Hydraulic Pipe Leak

[tonyk]

Hi

Has anyone replaced them main hydraulic supply pipe that runs from front to back - the one that runs over the fuel tank ?

Looks like the exhaust, heat shield, tank and underbody covers need to come off ? Does anyone know if there is a quick way to do this?

2004 C5 MK1saloon 2.0HDI  - Apart from this leak an otherwise  great car with 225000 miles ! - I would like to keep her going for a bit longer

Thanks in advance

[paul.h]

There may not be a quick way to do it, if it is the pipe from the pump to the back Citroen quote 4½ hours. However, where is it leaking and is it possible to just replace the leaking part with a union and maybe a short section, as you could with a brake pipe ?

[tonyk]

access to the leaking pipe is restricted - don't think i would be able to make a connection close to it - so would need to make a joint each side of the tank. so i would probably have the same difficulty dropping the tank. I have actually bought a new pipe ( £82) but didnt get any advice from dealer about fiiting it. Problem now is I will need to get the car to a garage to have it fitted unless i can figure a way of doing it myself. Do you know what type of unions i would need to get and wher i could get them from?

[Johndouglas]

Isn't the new pipe fitted with the unions?   To find out about union sizes and getting replacements, give Martin at Pleiades a call.   They are at Sawtry in Cambridgeshire - 01487 831239   The guy is a walking encyclopaedia about Citroen hydraulics.   Of course, maybe Steve will be along soon!

[paul.h]

Citroen do a 2 way union part 5280 R3 for the rear suspension where the end of the long pipe joins a coiled pipe. You could consider taking the pipe around the fuel tank so only need 1 extra joint, with the rear end of the pipe joining as now. If the pipes have flared ends (I have not seen them) then a flaring tool is needed to make up the new flare on the cut end on the existing pipe - use the flare nut from the discarded end. Some seals probably will be needed. However, we could do with input from coastline taxis, I am sure he will have come across this before.

 

If not done already, you can see the parts diagrams on service.citroen. Need to register as an other professional, Member of the Citroen Owners Club

[coastline taxis]

Sorry not been on but weve been really busy taxi wise. Its fairly straight forward to do but dont reroute a pipe as you need the corect pipe lenght for the pump pressure. the new pipe should have the unions on it if not take it back. the unions are a 2 piece union and have plastic seals on them

 

lift back seat and unplug the multiplug on the fuel pump then disconect the 2 fuel lines

jack car up as high as you can get it and then put axle stands under the sills

undo the fuel tank 4 x 16mm bolts

remove the exhaust (you can leave it in situ but youl bent the heatshields out of shape)

remove heatshield.

Youl now have acsess to your pipe and if you have the time maybe think about replacing the front to rear brakepipe aswell.

once pipe is replaced top up lds fluid and start the car up and it will bleed itself. Some times you have to force the lds fluid into the pump. Cove resevoir opening with clingfilm and poke a hole in the spout and give it a little blow with the engine running and that will be enough