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 Top Installation Instructions

This how-to combines the instructions from M&T Mfg. and other sources for a complete, 3-layer top replacement.

 

Tools:

  • Electric staple gun (rent one or borrow a friend's) & 5mm stainless steel or galvanized staples

  • Screwdrivers, Phillips and flathead

  • Top stuffing tool (or something similar)

  • Measuring tape

  • Cable/wire cutter

  • Drill (for removing pop-rivets)

  • Pop-riveter, if rivets are desired to be installed where they originally existed

  • Upholsterer's glue

  • Pliers

  • Spring clamps

  • Black automotive silicone

  • Roll of nylon string

  • Scissors

  • Utility knife

  • Vise grips

  • Camera (take pictures of everything you remove so that you will have something to reference for re-installation)

  • 10mm wrench (offset ratcheting advised)

  • 13mm wrench (offset ratcheting advised)

  • Friend

  • Patience

  • The ability to walk away when you become as frustrated as hell

  • Sheltered work area

The following instructions are for removing all three layers of the top: outer layer, insulation layer and headliner.

Remove the rear seat bottom and parcel shelf, fold rear seatback forward and clean out the trunk.  Roll down front and rear windows.

1. Remove the rear window by disconnecting the defroster wires, if present.  Pull off the insulators so they will pull out through the gasket more easily.  Use a screwdriver or similar tool to carefully work the inner lip of the seal from the inside of the car.  Pry the glass, with the seal around it, away from the car a little at a time. You can lean into it from the inside too, but be sure to have someone on the receiving end outside of the car for assistance and to catch the glass when it breaks free.

2. Remove the side rail rubbers over the rear windows by pulling them out while simultaneously protecting the rubber from tearing where there may be some glue spots.  Mark where they will go back and set aside.

3. Unscrew the corner caps (what the boot snaps to) and set aside. While you're here, take a moment to note the position of the boot hook tabs (measure their distance from the top's rear corner seams).

4. Remove the side plate screws by first folding the top frame to about half of being fully open.  You will see the side rail plate screws: one at the top, one at the bottom and four in between. Remove from each side of the car.  Similarly, remove the four rear quarter window screws.

5. Carefully pry the aluminum rails, where screws were just removed, from the mountings. They are sealed down with a tar strip, so pry gradually and carefully.  Avoid bending.  Mark where they will go back and set aside.

6. Observe whether the straps are threaded through the insulation padding via slots or are sewn to the padding.  You should sketch and write down the locations, orientation, etc., or take pictures, of these straps before you remove them.

7. Remove the main side top-window seals.  There are five retaining screws on each side as well as other retainers.  Carefully pry out the end clips making sure you can reuse them.  Remove clips, screws and the rubber seals.

8.  There are six screws on each side that hold the top to the front bow (bows are the frame's metal crosspieces; the front bow sits over the windshield).  Each screw is threaded into a plastic insert that goes through the fabric and into the front bow.  Remove these inserts very carefully in order to preserve them during re-installation.

9. Pull the pocket that is built into the front of the convertible top off of the front bow.

10. Move the top frame to the half-open position and note the loop in the end of a cable that is held by a tab in the frame.  It is suggested that new cables be used so that you can simply cut the existing cables (cut the cables in the loops with a cable cutter, pull them back carefully and slowly through the top; see step 14).  If you will be reusing the side cables, you will need to pry up the tab, very cautiously, on the frame that holds the hoop and push it back into position after the cable loop has been removed.  Note: Earlier models used springs with the cables; make note of how the springs and cables are attached (take pictures!) for easier installation.

11. The back of the top is locked to the car's body with a rear attachment cable.  It is difficult to remove.  To access the ends of the cable you should remove the top struts.  You will need a 13mm socket/wrench to remove the strut bolts.  Lift the struts out of the way.  Grip the cable end stud with vise grips or similar tool.  Loosen the nut at each end with a 10mm wrench.  Fix the vise grips so the stud and cable do not rotate.  Remove the nuts and the cable.  Examine it carefully.  If you are certain about its structural integrity, then it may used with the new top (but using a new cable is highly advised).

12. Remove all of the staples that hold the top to the circumference of the rear window.  Remove any other staples, such as the ones holding the top to the rear bow.  Now the top can be removed from the frame. 

13.  Observe how the insulation padding is fastened.  There are usually pop rivets to be drilled out at the back.  There is also a retention rod at the front which is held in place with tabs -- bend up the tabs.  Remove the rod and the padding.

14. When you remove the pad retention rod you will be able to release the side cables and pull them out.

15. Between the front bow and the bow behind it, there is a stretchable cord that joins and tensions them, one on each side.  Similarly, there is a second pair between the two bows further back.  Examine and replace as needed.

16. Examine and make note of the headliner attachment (reminder: take pictures!).  It is stapled and glued at various bows and is held in place in the trunk area by tabs  and glue.  Note, in particular, the way the listings at the headliner seams are applied to the bows and how the headliner is tacked to the rear window frame while removing.  You will be replacing the headliner with the same fastening. Once the headliner is free from all attachment points, remove the headliner.

Now is the time to clean up the top's frame: clean it, remove rust spots, lubricate the pivot points, etc.

17. Mark the center of each top frame bow with a dot or line.

18. If the manufacturer has marked the center points of the headliner, then that will be of assistance.  Otherwise, determine and mark the center points on the headliner (on the side that is NOT facing the car's interior!).  Align the headliner center points with the bows' center marks, lead the listings (extended fabric tabs at the seams) to the corresponding bows and hold in place with spring clamps.

19. Using stainless steel or galvanized staples, staple the listing the center of the rear bow, letting the headliner hang down about two inches.  Note the stapling area or listing in the bow.

20. You will have to line up the headliner and work outward, stapling the headliner down to the corners of the bow.  Make sure that the headliner is both centered and tensioned.  Install the headliner's old side cables (if they're in good shape; otherwise get new cables) through the headliner loops at the sides.  There may have been hold-down screws to attach the cable to the bows in front of and behind the headliner cable loop; reattach these.  Glue the headliner down around the back window, pulling tight, eliminating wrinkles and then staple.  If pop-rivets were used and you have the tool to reinstall rivets where applicable, do so.

21. Bring the front edge of the headliner to the front bow and glue it to the front bow, starting at the center and working outward.  Use an upholstery shop adhesive that will give you a strong bond.

22. Tack the headliner at rear and other bows.  Double-check the headliner's alignment.  Staple down the back edge of the headliner.  Working from the center outward, the two center bow listings are glued into place.  Note: the rest of the headliner is not glued down until after the padding is installed.

23.  Check for creases in the headliner.  Wrinkles can be "shrunk" out with a heat gun.  If this is necessary, be careful to test the intensity of heat on a scrap piece of vinyl.  You can melt the vinyl if you overheat it.

24. If you are using a foam insulation pad, preparation will  be necessary.  Chamfer the entire edge of the foam rubber pad along all four sides.  You should leave about a 3/8-inch thick edge and bevel it in.

25. Slide the retention rod (removed in steps 13 & 14) back through the bend at the front bow.  Bend back the retaining tabs.

26. Pull the padding cover back, grabbing it at the rear center.  It should be moderately tight.  Pull the cover under the rear bow.

27. Glue the padding to the cover.  Remember that the padding must move freely as the top is folded.  Therefore, do not glue it everywhere.  Glue down the first six inches at the center front and at each side; same for the rear.  This will hold the pad to the cover.

28. Encase the padding in the blanket.  Do this by folding each side "wing" of the blanket over the pad.  First, fold over the passenger side of the pad cover and smooth it down.  Roll the front edge back and apply glue to the metal front bow and to the length of the pad.  Avoid wrinkles (wrinkles will transfer to the convertible top).  It is unnecessary to glue every square inch of the cover.  Now, at the rear, center and tension of pad and cover and staple the center two inches.  Repeat for the driver's side "wing".  Glue about 4-6 inches to bond the two wings.  Now staple across the back.  The front should be glued and the rear should be stapled.

29. Slide the rear attachment cable through the rear of the new top.  Slide the cable through the cable guide and put one nut on each cable stud, about a 1/4-inch.  Spring clamp any material that may be in the way inside of the car.  Slide the boot hook tabs, if desired, onto the cable; position them using the measurements taken in step 3 (this may need to be skipped until the cable is tightened down if the boot hook tabs are not sewn shut).

30. Work the back of the top to the body.  The cable's plastic sheath will pull the top to the body channel.  Push the top fabric into the rear channel, working it into place and avoiding bunching it up.  A putty knife wrapped with electrical tape, or a similar tool (it should be stiff, thin and coated to avoid tearing the top fabric) will help you now. You have to push the top into the channel with the cable right over it.  You will have to vise grip or otherwise hold the base of the cable stud to keep it from rotating while you tighten the nuts further.  As you tighten the nuts, the top will be held down.

31. When the rear of the top is fairly secure, stop tightening the nuts and go to the front pocket of the top and slide it over the front bow.  Go back to the cable and tighten more to firmly secure the top.  Reattach the struts.

32. The back of the headliner is attached by pushing the material over the pointed tabs along the inside of the trunk at the top.

33. Lift the top halfway up. Pull down the top over the front bow and check the alignment.  Make sure the binding edge is pulled down tight and glue the top to the front bow.

34. New side cables are sold un-looped because two different lengths of cable were used: 94cm and 106cm; the shorter cables utilize springs, the longer cables do not.  Make a loop by threading the cable through one of the four fittings provided.  Use the original cables as guides in creating the correct diameter loops as well as getting the correct length of the cables.  Circle the end of the cable back through the fitting and then back again through the fitting to create the loop.  Squeeze the fitting shut tight with good vise grips or clamps.  This makes the loop permanent.  Hook the cable to the small tab you saw in step 10.  Feed cable, using a wire coat hanger with a hook at one end (or a piece of electrical wire) to pull the cable through the loop in the headliner (repeat on other side).

35. There are small tabs at the front and rear that have to go through the pad.  Center the cable and with the wire or coat hanger, insert the side cables through the sides of the convertible top.  Locate where to puncture the pad for any tabs that have to go through it.

36. There are six screws on each side that hold the top to the front bow.  Each screw threads into a plastic insert that goes through the top and into the front bow.  Observe in the old top how an "x" was cut to put the insert through.

37. Now, reverse the removal process and reinstall the rubber strips over the front side windows.  There are five retaining screws, clips and crimp ends on each side.  Be very careful in reinstalling.

38. The padding straps go through the hole in the pad and pull the top pad into place as the top is folded.  Install in accordance with the locations in your old top. If your car has been restored and there were no straps, then go by the slots in the rear window frame and perhaps strap remnants on the bows.  This information, hopefully, will be apparent from your notes or pictures taken during the top removal process.

39. Now, reverse the removal process for the rubber seals over the rear side windows.  Fold the top as necessary.  You will have to replace each rubber seal on its original side as marked during removal.  Use a dab of black automobile silicone sealant at the front and back as was done at the factory.  After you smear on the sealant let it begin to set (form a skin) for about five or ten minutes so it applies more easily.

40. Cut out the rear window opening by making a slit about 4 inches long from left to right in the center of the window frame.  Carefully pull the top material to erase any wrinkles as you fasten the top to the rear window frame with your staple gun.  As you pull and staple the circumference, you can slice off material on the inner edge of the window frame. Another method: pull the material taught and clamp it to the frame; once clamped (you will need about 15 clamps), begin stapling.

41. Reinstall the rear window.  If you are installing a new window seal, wrap it around the rear window in the same fashion as the one you removed.  Note the lips of the seal and how they are oriented.  The lip you are primarily concerned about now is the inner one which will grab the lip of the steel frame.  Now, insert nylon string in the gulley at the inside base of this lip, all around the window.  With you in the trunk, have a helper push window up against the opening, making sure the glass is right-side up (defroster connections on the inside and at the bottom).  As your helper keeps the window in place and pushes against it, use a flathead screwdriver to pry the lip where the end of the cord is into the car; as you pry the seal, pull the cord to seat the seal properly against the frame. You may also take the vehicle to a glass shop to have them reinstall the rear window.

42. Reinstall the corner caps (what the boot snaps to), making sure that the rubber seals behind them are properly aligned.

43. Wipe the sweat from your brow, pat yourself on the back and grab a cold beverage in celebration of a job well done.

The Fine Print


Please do not email the site administrator with personal questions to mechanical-related problems (they will not be answered); instead, please use one or all of the car forums listed on the links page.  Thank you.

The information contained in this site is for entertainment and informational purposes only.  The site creator is not responsible for you, your car, your errors, or your economic losses resulting from your use of this information.  Additionally, this site and its content are not affiliated with Volkswagen of America nor Volkswagen AG.

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