XM - Return line

[Carsten S]

Hi,
The car have a fairly amount internal leakage. When stopped, the rear end falls to bumpstops in ~25 sec. When running the pressure-regulator allmost never cuts out.

Does anyone know what component this return-line is connected to, and is that the problem?
XM V6 24V (ES9) ~1998

Thanks

[Peter.N.]

I suspect it may be the rear height level adjuster, when they wear they can pass a lot of fluid back and that would account for the rapid sinking. The rear suspension is also connected to the rear brake circuit via the brake valve. It could of course also be on of the rear suspension cylinders.

Peter

[xantia_v6]

This car will have anti-sink, so the anti-sink valve should be isolating the rear suspension cylinders from the brake valve and even (I think) from the height corrector, so that only really leaves the rear suspension cylinders as prime suspects. Pulling the return pipes from the rear cylinders should confirm it fairly easily.

[Carsten S]

This car will have anti-sink, so the anti-sink valve should be isolating the rear suspension cylinders from the brake valve and even (I think) from the height corrector, so that only really leaves the rear suspension cylinders as prime suspects. Pulling the return pipes from the rear cylinders should confirm it fairly easily.

Thanks, i'll give it a try.. There's just no work space at all, in the rear of it. Really annoying design.
A friend of mine have a Xantia which started the same "feature" yesterday.