XM spheres question

[Jan-hendrik]

Yes they do.. a working hydractive sinker xm. gives a nidge when you first start the car.. my v6 sei on a 1992 also did it too.. the black turbo onyx on a 1993 also did it.. i dont mean a big jump up in the air.. just a small nudge...

Hmmm. My 1995 V6 Excl. I drove from 1995-2004 never did that. (It developed other problems though. Rear electro valve, fried transistors.)
My brother's 1997 model we drove in The Netherlands didn't either

The e-valve functioning when a door is opened does not mean all is well

[citroenxm]

I didnt say series two cars did it... only s1.5 cars from 1992 to early 1994.... but im still the only one who has experianced it... so i dont want this turning into a whos does and whos doesnt do a nudge...

[Vince]

It doesn't matter to me one way or another on the nudge so let's move on....so the hydractive only works when the sport switch is engaged..? ..I quite like that level of control as it bugs me in the xantia that it firms over speedbumps over 15 mph....kind of ruins the expectation....

[citroenxm]

Thankyou vince... yes sir thats how the s1.5 system works... and as i said above it works too..

[citroenxm]

Also vince theres another thing less to worry about.. the strut tops are virtually new... theres no split around the rubber under the wings!!! very good news that!

[Vince]

I know Paul, to be honest that's one of the big things that swung it for me.... I will work through everything front to back underneath and clean, de rust, and reseal as I go so it prolongs the life of everything....was the first job I did on the xantia. I need to look into comfort spheres? They are hard to get hold of through work now.

[citroenxm]

Try yur rivals then, AEP Glasgow, or Citroen Services as they are also known..

Ive also fitted Xantia Spheres to one of mine in the past, that was nice, but prehaps a bit tooooo "Boat-ey"

[Dean]

I think there may be a little confusion, All hydractive two is the same bar switching differences from slightly different ecu's, hydractive two is a good system but the electrovavles can let it down with leaks being a common issue and diodes another resulting in relay distruction in the ecu if ignored.
This system has two automatic modes one with a lower switch threshhold called sport.

Hydractive one does the same job but it has only one fairly reliable electrovalve which supply's fluid to both hydractive valves remotely to operate them, diodes dont seem to be an issue and the electrovalves dont often leak either, this setup has an automatic mode where the car will switch to sports mode under certain conditions and a sports mode which locks the car in sports mode perminantly at speeds above about 10mph (ish)

Im not sure why early H2 would be deamed more reliable as its the Electrovalves that are the week point of the system and they stayed the same though the whole XM Hydractive two production.

H1 Electrovalves are now no longer available but there is some nos out there if a little rare.

D

[Dieselman]

I didnt say series two cars did it... only s1.5 cars from 1992 to early 1994.... but im still the only one who has experianced it... so i dont want this turning into a whos does and whos doesnt do a nudge...

I just went out and started my 1990 car and just as it started to move it jumped slightly at the rear....

I think this is because it hasn't been run for a few weeks, so it just stuck slightly then lifted. I don't notice it normally.

[xmexclusive]

There is a slight difference between Series 1 Hydractive 2 and Series 2 Hydractive 2 on cars but not estates.
Series 2 XM car's have slightly larger diameter rear cylinders.
XM estates kept the same size rear cylinder throughout production.
Because of this difference it is important to be careful not to fit mixed rear cylinders when replacing on an XM car.

John