I bought my cheap Xantia TD estate last year, it's been really reliable so far, until I noticed a pool of LHM under the rear nearside.
It's the pipe that travels from a 3-way union, over the rear suspension subframe and to the engine bay. Most of it is in good condition, just the rear 50cm or so is grotty. The route into the engine bay is confusing and I can't work out which pipe goes where. I'm a bit stuck now...
If you have ABS then the pipe goes directly to the ABS valve block, just ahead of the LHM tank..
If it doesn't have ABS, I THINK it goes directly to the 4 or 5 way connecting manifold, on the bulk head, which goto the brake valve.
The pipe runs over the top of the front subframe, and joins the grouped pipes running UP to the back of the engine bay then branch of to where they need to go, in your case with ABS to the ABS block..
I have stocks of aleady removed pipes from other cars, so I swap a whole pipe to a car.
As for removing yours, you will need to lower one side of the subframe to gain better access to the pipe, and to remove it.. However, with any luck you need to be sure the pipe union will undo, my experiance is rusted untions and rounded heads, then trouble.
Lowering the subframe is not too daunting, but the car MUST BE SECURLY SUPPORTED !!
Theres only two bolts each side holding the frame on...
Sharing a pug 207 1.6 hdi Sw 16v.
M reg Xm 2.1 td auto exclusive S2 269k and rising
L reg XM V6 12v SEi auto .. Light project
I'm a bit stuck now...