Suspension Pump C5 V6
  • Help
Results 1 to 10 of 10
  1. #1
    Tadpole
    Join Date
    Dec 2010
    Location
    Edithvale
    Posts
    13

    Default Suspension Pump C5 V6

    Hi.
    yesterday smoke came from my C5 V6 Nov'2004 from the right front bonnet.
    After a little research its called the suspension pump. Something down there was burning badly.
    She was smelling real bad.
    The suspension doesn't work any more and I'll have to locate
    the fuses for this one.
    Are they under the normal fuse box?
    How do i get the top tank off the pump motor?

    Michael

    Advertisement

  2. #2
    Fellow Frogger! Clogzz's Avatar
    Join Date
    Mar 2005
    Location
    Sydney 2087
    Posts
    189

    Default

    Don't know about the V6, but the 4 has fuse 8 of 40A for the pump.

    Suspension Pump C5 V6-fuse_box_2.jpg Suspension Pump C5 V6-fuse_box_3.jpg Suspension Pump C5 V6-pump_fuse_8.jpg
    Last edited by Clogzz; 3rd June 2013 at 12:00 PM.
    2003 C5 2.0i AL4 205,000 km 76372389

  3. #3
    Tadpole
    Join Date
    Dec 2010
    Location
    Edithvale
    Posts
    13

    Default

    Pulled all fuses out, as above 1-8 and all intact and in good condition.
    Now to get the suspension pump out.
    Looking down into my engine bay and most of my wires are melted that go into
    the suspension pump.
    Not to worry it can be all fixed.
    keep u posted.
    Thanks Clogzz. photos are great. How do I post photos.?

    Cheers McRitchie
    Last edited by ekims; 3rd June 2013 at 08:38 PM.

  4. #4
    Tadpole
    Join Date
    Dec 2010
    Location
    Edithvale
    Posts
    13

    Default

    So the French have a funny sort of clips to hold there hoses on. cool. top tank off
    I pulled the suspension pump out by pulling the the front bumper off, then the headlamp out and there you go.
    Electric pump is fried. I suppose after about 200,000KM (minedone 250,000km) it needs a blow out then it wouldn't get clogged up with carbon deposits. cheers

  5. #5
    Tadpole
    Join Date
    Dec 2010
    Location
    Edithvale
    Posts
    13

    Default

    Can I have some suggestions why my Suspension doesn't work?
    Nov '04 C5 V6.
    Suspension pump catches on fire.
    Melts the Electrical plug on Pump.
    H2+ pump fitted to car from a car that the pump worked fine (I tested it before taking it out)
    Electrical plugs replaced. Every fuse checked including big ones from Clogzz online
    Photo Bucket gallery Images.
    New LDS oil filled into the system.
    Bicycle valve fitted to system to add 1/2 bar pressure.
    One problem i'm not sure about is that when I start the car my middle console button
    doesn't register any dash indicator up or down.
    Would the centre button have anything to do whether the Pump works?
    McRitchie

  6. #6
    Fellow Frogger
    Join Date
    Jan 2004
    Location
    Sydney
    Posts
    10,192

    Default

    Is it exactly the same pump or is the ECU that bolts to the top different? There was a change in the type of communications in the car around 2006, so a pump with the later type of ECU will not work in your car with that ECU. Try fitting your old ECU to the new pump.

  7. #7
    Tadpole
    Join Date
    Dec 2010
    Location
    Edithvale
    Posts
    13

    Default

    Thanks David,
    Yes I bolted on the Original ECU on after I tried the new one.
    The mechanic then erased any error codes that came up.
    Pump seems to pump however doesn't provide any pressure.
    Pump has same numbers, also my OLD ECU to match my BHI.
    My V6 is Nov '04 and new pump came from 2001 car V6 which I
    witnessed working fine.

  8. #8
    Fellow Frogger
    Join Date
    Jan 2004
    Location
    Sydney
    Posts
    10,192

    Default

    In your V6 with Hydractive 3+, the middle button on the switch unit should be marked 'Sport'. The cars with Hydractive 3 (i.e. not really Hydractive at all) don't have that. It will change the way the Hydractive system switches the 3rd sphere at each end in and out. As far as I am aware it it not a switch to force it to remain in firm mode and it does not prevent the operation of the BHI(pump) or height control. If the switch has no effect, then there must be some wiring and/or electronic fault to find. A dealer (or someone with a Lexia / DiagBox on a laptop) can try to communicate with the BHI and perform front/rear electrovalve actuation tests etc.. Normally, you'd hear something from the electrovalves in the BHI. You could possibly try another switch. If you drive it above 10km/hr it should come up to normal height, so that may be one way to see if it is switch at fault.

    The early pumps had a separate small return fitting that later pumps didn't. How did you deal with that? It should bleed itself if you cycle up and down, but is there a chance it's simply not bled properly? You might be able to open the front suspension depressurisation nipple and see if LDS will run back to the tank via a tube. I expect that may work in theory, but it's not something I have done myself.
    Last edited by David S; 16th October 2013 at 12:47 AM.

  9. #9
    Tadpole
    Join Date
    Dec 2010
    Location
    Edithvale
    Posts
    13

    Default

    David S . Can you recommend anyone with a Lexia / DiagBox on a laptop)
    I drove the car down the street and it didn't happen. When the car is stationary & engine is running the
    display comes up at 10km'h sign and sport button lights up when i press the button.
    Thats about it. It sounds like it isn't bleed at all.


    Also remember my wiring was burnt. I cut the wires and connected them onto the new plug that I bought.
    I spliced them, then soldered them back together and heat-shrinked them.,.
    Michael

  10. #10
    Fellow Frogger
    Join Date
    Jan 2004
    Location
    Sydney
    Posts
    10,192

    Default

    One for them Melbourne locals I think, but you could look on eBay if you want your own.
    Have you rechecked your wiring against a wiring diagram and also that the female terminals are tight and have not been opened out by someone probing them?
    There was a similar discussion thread about a bad pump referring to a mobile tech in Melbourne. That may be worth looking for and possibly following up. A dealer will be the most pragmatic way to resolve it I'd think.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •