Question about 1994 Audi Cabriolet

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Hydraulic pump automatic roof

I need to top up the fluid in the resovoir,but how do i remove the pump in the boot (trunk)?audi 80

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  • bashie67 Jan 16, 2009

    i no the answer to this problem as i have just done it today feel free to ring me on 07901506466

  • dawnste48 Apr 02, 2009

    Hi,

    What type of hydraulic fluid do you use in a 1995 electric cabriolet roof?

    Thanks
    Dawn

  • dawnste48 Apr 02, 2009

    My roof on my 1995 audi cabriolet has suddenly developed a fault.



    The t bar opens

    the windows go down

    the back compartment opens 3 inches then drops

    sounds like motors are running

    roof reaches 90 degrees then stops



    We have tried it manually and it works and locks up.



    We have added hydraulic oil.



    Any other clues??



    Thanks



    Dawn

  • Anonymous Mar 12, 2014

    Hydraulic pump for cub lo boy I have bought 2 pumps and neither one wants pump or work the hydraulics I need to see if there is anything I can do to fix this problem

  • Anonymous Mar 12, 2014

    Hydraulic pump for cub lo boy 154 I have bought 2 pumps and neither one wants pump or work the hydraulics I need to see if there is anything I can do to fix this problem

  • Anonymous Mar 23, 2014

    I PULLED THE YELLOW LEVERS IN THE TRUNK AND NOW I HAVE PROBLEMS WITH THE ROOF, HOW DO I RESET IT?

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I've done it 2 ways:
1st - loosen the pump assy - nuts on either end, then unscrew the plastic bottle. This is a pain unless your hands are the size of a baby's!
2nd - undo the nut on the side of the pump assy. (looks brass, from memory and is about a 13mm) and this uncovers a hole which leads into the top of the bottle. Then use a small hose and syringe to refill. This can get messy but was slightly easier than the first method.

Posted on Feb 01, 2009

  • Bubonic Aug 08, 2010

    I've just performed this operation and hope my experience may be of use to others:

    Audi Cabriolet 1998 2.6e

    Symptom: Roof operation noisy - much whining and mechanical noise from pump. initially 3 attempts or more to open and close with slow operation. Laterly manual assistance required to move hood and cover.

    Cause: Hydraulic leak on N/S upper roof ram.

    1. Removing the boot trim was a pain, looks like an exercise in using as many different fixing methods as possible. Found that removing the boot sill trim, floor (over spare wheel, and removing all the fixings gave enough leverage to pull the boot lining away far enough from the cavity surrounding the hydraulic pump unit. I cannot believe how inconvenient this is just to get to the light clusters.

    2. The hydraulic unit is incredibly awkward to work in situ. I initially removed the wedge shaped cover over on top (requires a star headed driver T30, also the 2 side bolts don't need to come off completely as the wedge shaped cover has slots at the side rather than bolt holes), but failed to see the big 13mm access bolt for replacing the hydraulic fluid. Doh!

    3. I found the 13mm side access port - this is astoundingly difficult to work, and I found impossible to replace without removing the rubber doorstop which acts to prevent the whole hydraulic unit knocking into it's support frame. (It's sort of on gimbals for some reason). The doorstop thing is itself a complete pig to remove and replace afterwards. My advice - use the top port!

    4. Push a tea towel or something absobant under the whole assembly as there will be hydraulic fuid everywhere and you will drop the nuts, bolts or tools which are then infuriatingly difficult to fish out from underneath.

    5. I adapted a calpol syringe and length of tubing from inside a spray dispenser to transfer fresh hydraulic fluid. The port on the side only allows you to fill to the minimum reservoir level before dribbling back out again.

    6. I finally discovered the top port, it is a strange looking bolt with quite a long head, it sits in front of the 6 hydraulic cylinders, but is at least easy to access with a 13mm socket.

    7. Using my calpol syringe I filled the reservoir whilst the roof was fully down and stowed, it took about 150ml, although this includes all the stuff I lost trying to fill via the side port.

    8. The roof now operates perfectly and in silence.#

    I have a replacement ram (£30 from the breakers) but will hold off fitting as I can live with the small leak currently and only use the roof on special occassions, plus my second hand replacement may be no better and again it looks like a bit of a tricky job.

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The solution to my roof problem was that the wires in the boot on the drivers side had broken. Have re attached and the roof works perfect and the central window switch is also working again.

Posted on Apr 02, 2009

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