c5

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notinserviceuk
Posts: 79
Joined: 07 Sep 2025, 20:20
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c5

Unread post by notinserviceuk »

hi all got a mk1 2003 2.0 hdi c5 vtr now this might be a weird question but has 2 parts

1 my hasnt got 5 spheres but 4 but still has adjustment switch and snow mode and sports mode which works but thought there meant to have 5 spheres is this correct?


2 using lexia 7.02 found suspion function but theres no button or function tab to depressiure but it is working ok suspion is good every now and then getting a popping over certain bumps but what bugs me is the bsi cant or wont tell the suspion to depressure any ideas ?
wurlycorner
Donor 2024
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Joined: 30 Oct 2012, 22:37
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Re: c5

Unread post by wurlycorner »

notinserviceuk wrote: 29 Nov 2025, 19:33 hi all got a mk1 2003 2.0 hdi c5 vtr now this might be a weird question but has 2 parts

1 my hasnt got 5 spheres but 4 but still has adjustment switch and snow mode and sports mode which works but thought there meant to have 5 spheres is this correct?
If someone swapped the height control switch for a version with the sports button in it, the button will operate, light up, lexia will see it … but it makes no difference to the suspension at all, because yes - you need additional spheres for that.
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Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
notinserviceuk
Posts: 79
Joined: 07 Sep 2025, 20:20
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Re: c5

Unread post by notinserviceuk »

sport mode separte button along side snow mode works ok adjusts ok comes up on screen it adjusts accordly
wurlycorner
Donor 2024
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Joined: 30 Oct 2012, 22:37
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Re: c5

Unread post by wurlycorner »

This is the only sport switch on a mk1 c5 that I’m familiar with - in between the height adjustment buttons. Lights up orange when selected.
https://ebay.us/m/SHtDWf
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Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
notinserviceuk
Posts: 79
Joined: 07 Sep 2025, 20:20
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Re: c5

Unread post by notinserviceuk »

thats not my switch this is mine is auto which has just below the auto stick snow and sports mode together
wurlycorner
Donor 2024
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Joined: 30 Oct 2012, 22:37
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Re: c5

Unread post by wurlycorner »

notinserviceuk wrote: 30 Nov 2025, 20:21 thats not my switch this is mine is auto which has just below the auto stick snow and sports mode together
That switch is 'sport' mode for the gearbox only. It does not put the suspension into 'sport' mode - entirely separate.
The suspension 'sport' mode on that gen of C5 is always via the switch in the height selector that I posted there and works in the way I described.
--
Iain

'85 CX GTi Turbo s1 (met. blue)
2x '85 CX GTi Turbo s2 t1 (met. silver & grey)
'88 CX GTi Turbo s2 T2 (met. light blue)
CX DTR T2 Safari (silver)
2x '96 Xantia Activa (Black & met. green)
'01 C5 2.0 HDi LX Estate (Blue)
'11 C5 X7 3.0 V6 Exclusive Tourer
notinserviceuk
Posts: 79
Joined: 07 Sep 2025, 20:20
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Re: c5

Unread post by notinserviceuk »

pic of my gear stick from other source see how the buttons are different to your pic
Attachments
4_c5bva1.jpg
furriegurrie
Posts: 196
Joined: 07 Dec 2012, 15:21
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Re: c5

Unread post by furriegurrie »

Those are just for the auto gearbox as already mentioned. Has nothing to do with the suspension. Also your C5 has an older suspension system which can not be depressurised with Diagbox of Lexia. That’s applicable to the C5 X7, not to a C5 from 2003.
notinserviceuk
Posts: 79
Joined: 07 Sep 2025, 20:20
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Re: c5

Unread post by notinserviceuk »

so how do i depressure the system then please
furriegurrie
Posts: 196
Joined: 07 Dec 2012, 15:21
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Re: c5

Unread post by furriegurrie »

I assume, as my experience is with the Xm, Ds (and C6) it’s like the Xm. The HD regulator has a nut with spanner size 12 which you losen a bit. Don’t remove it completely as there is a small ball under spring load behind it which will escape and will be impossible to find back. Put the car in the low position first. Make sure your are not under the car when doing this unless the car is up on ramps or over a pit.
notinserviceuk
Posts: 79
Joined: 07 Sep 2025, 20:20
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Re: c5

Unread post by notinserviceuk »

i guess you drain the air out and a little fluid
furriegurrie
Posts: 196
Joined: 07 Dec 2012, 15:21
x 37

Re: c5

Unread post by furriegurrie »

No, that’s not what happens. You open a channel to the reservoir so pressure goes there. The reservoir vents to the air so the pump does not build up pressure but just circulates fluid (if the engine is running of course)