After installing the windshield, do not use the vehicle until you have allowed at least 24 hours for the urethane to set. Move down the left and right front door windows and let the back glass slider open if you can, to avoid a closed-up car which might lead to leaks. Leave about 1-2 mm of the bonding material on the fence, since getting it down too much can change how both the bond and paint turn out. Set the support spacers provided into the openings where they are needed beneath the windshield. After your windshield is already in place, level the previous bead of adhesive (1 mm) and get rid of excessive adhesive. Secure new spacers (1) onto the top of the glass and then slide lower spacer assemblies (4) into the indented holes below; make sure they are locked with the side that's not deep facing the top. Put the windshield (1) in the exactly middle of the car, with the side and lower spacers (2 & 3) underneath and set the lower spacers as required to match the roof gap's specification. Use tape to aid the last installation step, check the windshield gap is straight, cut the tape and remove the windshield. Give the glass (2) to be glued another cleaning with a suitable product, look for any spoiled primer and repair damaged spots with another layer of primer. Smear paint primer around the edge of the glass in a 15 mm (0.5 in.) strip (1) and leave it to dry in the air for 10 minutes (2). When replacing the windshield, hold four upper spacers (1) against the upper rim of the glass (2), apply four more from above onto the A-pillars and insert the lower spacer assemblies (1) into the slots, locking them into position. Put the windshield into position in the center of the car, use adhesive tape around the windshield, make sure the gap is parallel, remove the tape and then extract the windshield. Ensure the area you'll bond is clean and bare, apply primer to its surface and let it dry for about 10 minutes in the air. Brush and vacuum the space in the windshield and reduce the old sealant layer to 1 mm tall, then clean the re-glue area. Fix any part that is damaged and let the air-dry primer dry for about 10 minutes. Run a line of adhesive (1) resembling a rope from the bottom center, directly in the middle of the seal, using a triangular nozzle. Find the bead of adhesive at that spot on the windshield (2), press it flush with the glass, lift the windshield (2), then gently lay it in place as you press on it. To avoid damage to the windshield, only press it into place by yourself. After that, place the cowl panel above the engine and secure the rear view mirror.