Audi Workshop Service and Repair Manuals

Removing and installing rear window Removing undamaged rear window t  C-pillar trim removed → Rep. gr.70 t  Roof spoiler removed → Chapter –  Unplug electrical connectors for heated rear window and window aerial, move towards centre of window and secure with adhesive tape.   WARNING Always wear safety goggles and leather gloves when removing window. –  Use wire reel -VAS 6452/1- to reel off about 6.50 metres of cutting wire (corresponding to 6 turns) and cut off. –  Pierce adhesive bead from inside to outside with awl -2-, as shown.

–  Mask over outlet of awl at bottom of body flange with adhesive tape -1- to avoid damage. –  Thread both ends of cutting wire -3- into awl and pull through to the inside.   Caution The wire ends must not be twisted at the point where they pass through the adhesive bead -arrow-.

–  Position cutting cord around rear window (under window), as shown.

–  Attach both reels to inside of window, as shown. –  Additionally insert guide awl into the adhesive bead, as shown, and attach it to window using suction pad so that wire runs along window as close to the glass as possible.

–  Insert end of cutting wire -1- into reel -2-.

–  Tension cutting wire with reel -1- and insert plastic film -2- from removal kit -VAS 6452- as protection between wire and rear shelf.

–  Cut out first section of window glass at bottom.

–  Cut window glass clear at D-pillar (bottom). –  Position guide awl as shown and continue to cut window clear upwards at D-pillar.

–  Adjust reel and guide awl, as shown, and cut clear area at D-pillar (bottom) on opposite side.

–  Move reel up and apply guide awl. –  Cut out window towards top.

–  Move reel as shown.

–  Cut window clear at top right corner.

–  Move reel to top left corner of window, as shown, and cut out window.

–  Move left reel to approx. centre of window, as shown, and apply guide awl.

–  Cut clear window from top edge approx. to centre.

–  Move right reel over left reel, as shown, and completely cut out window. –  Lift window out of rear lid using suction lifters. Removing damaged rear window   WARNING Always wear safety goggles and leather gloves when removing window. –  Protect body and interior against damage from glass splinters. –  Remove glass fragments down to adhesive sealant. –  Unplug electrical connectors for heated rear window and window aerial. –  Mask flange all round with fabric-reinforced adhesive tape. –  Cut through adhesive sealant (with glass fragments) in window opening using electric cutter -V.A.G 1561A- and offset blade -V.A.G 1561/10- (with roller stop). Preparations before installing rear window   Note t  Just before re-installing an undamaged window, use electric cutter -V.A.G 1561 A- and scraper (25 mm) -V.A.G 1561/8- to cut back the remaining adhesive sealant on the window and flange for an even surface, but do not remove completely. t  The remaining sealant is required as a base for better adhesion of the new adhesive sealant.   Caution t  Keep bonding surface clean and free from grease. t  Do not cut back bonding surface until shortly before installation. t  Do NOT apply primer to bonding surface and do NOT use cleaning solution. If installing a new window: –  Clean all around window bonding area with cleaning solution -D 009 401 04-.   Caution t  The ceramic coating on the glass is not a primer. t  The glass must always be primed before applying adhesive sealant. –  Apply glass/paint primer -D 009 200 02- as described below.

Applying primer: –  Use applicator -2- to apply glass/paint primer -3- evenly and in one movement to bonding area on window -4-. –  Start application with fully soaked felt. l  Drying time: 10 minutes   Caution Glass/paint primer is conductive and must not come into contact with bus bar of rear window heating. Window flange: –  If the window flange was damaged, the paintwork must be restored according to specifications in the → Assessment of vehicle paintwork manual and corrosion protection measures must, if necessary, be taken according to the → Surface Treatments/Chemical Materials manual. –  Start by cleaning repaired area with cleaning solution -D 009 401 04- and then apply glass/paint primer -D 009 200 02-. Installing   Note The cross-section of the adhesive bead is determined by the nozzle opening and the rate of application.

Dimensions for applying adhesive: 1 -  Adhesive bead 2 -  Glass/paint primer 3 -  Window l  Dimension -a- = 8 mm ± 2 mm l  Dimension -b- = 12 mm + 2 mm l  Dimension -c-: note distances from edge of window.

–  Apply full surface of nozzle -2- to window → Item. l  Direction of application -arrow- for adhesive bead -1-.

–  Apply adhesive sealant all around window. –  When reinstalling an undamaged window, apply adhesive to remaining adhesive bead. –  Fit rear window into window opening using suction lifters.   Caution Window must be fitted within 15 minutes, otherwise the adhesive properties of the adhesive sealant will be impaired. –  Align window glass so that spacing is equal on both sides. –  Observe distance to top edge of rear lid = 2.5 mm. –  Note minimum drying time → Anchor.