Quick question about hydractive 3+ behaviour

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aerodynamica
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Quick question about hydractive 3+ behaviour

Post by aerodynamica »

Any time i turn on the ignition i notice the front suspension raises a bit. If the ignition is turned off of falls by apparently the same amount. Car maintains height normally at all other times. Is this a fault or normal behaviour?
Graeme M
2008 C5 Exclusive Tourer 2.0 HDi
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Re: Quick question about hydractive 3+ behaviour

Post by GiveMeABreak »

It's just making height corrections - ignore it Graeme. The same happens when you unlock the car - part of the RCD network is triggered in anticipation of a journey and certain ECUs are activated including the suspension ECU in this case - height correction is undertaken if necessary.
Please Don't PM Me For Technical Help

Marc
aerodynamica
Donor 2023
Posts: 1300
Joined: 26 Dec 2007, 18:10
Location: Glasgow
Lexia Available: Yes
My Cars: 2008 C5 Exclusive Tourer
1993 Xantia 1.9 TD VSX Mk1 Sinker A.K.A Slugmobile 13'
'Old Katy'
previous convictions: totaling 52litres of LHM in one go:
1968 ID19B 'Old Polly' Stellar white
1993 Xantia 1.9 TD SX Mk1 Sinker Silver
1992 XM 2.0 SEi Turbo Manual Anthracite Grey
1982 CX 20 Pallas 'Old Goldy'
1993 XM 2.1 SD Auto Light blue
1993 Xantia 1.9 TD SX Mk1 Sinker light Blue
1982 BX 16 TRS 'Cyril' Vallelunga Red
1995 Xantia 1.9 D SX Auto Dark green
1977 CX 2400 Pallas C-Matic 'Aphrodite' Regatta Blue
1982 GSA Pallas SE Silver Pearl
1980 CX 2000 Reflex Vallelunga Red
1978 CX 2400 Pallas C-Matic 'Prometheus' Midnight blue
1984 BX 14E 'Cecil the slugmobile' Maroon
1987 Fiat Panda 'the mighty panda'
x 98

Re: Quick question about hydractive 3+ behaviour

Post by aerodynamica »

Hi Marc, yea i wasn't worried as such it just appears to make a height change for no reason? I noticed it really when I switched off the ignition while I stayed in the car for a few moments - the front dropped a good few inches. Turning the ignition back on saw it raise back up but no doors were opened and I stayed put. It always does this seemingly. Never noticed the rear doing anything similar.
It's almost like it is wanting to be at a lower front height for being parked up and locked. Maybe just for the 'stance' :-D
Graeme M
2008 C5 Exclusive Tourer 2.0 HDi
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