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2010 BMW X6 M.

 
  Vehicle type: Four-door "sports activity coupe" 

NAGS® numbers*: Windshield part numbers FW2934 solar; FW2935 rain sensor, solar; and FW2936 rain sensor, solar, heads up display; back glass FB23824 heated

Helpful tools or supplies: Cutout wire for back glass removal if goal is to salvage the part

Watch for: It has been reported that all BMW rain sensors, with the exception of those on the 3 Series, must be re-calibrated at the dealer. Research is ongoing to determine if this is the case, but be prepared to report this to the customer.

*With permission from National Auto Glass Specifications. Call NAGS at 800/551-4012 or visit http://glass.mitchell.com/.

A. Windshield
Preparation
1. Cover the front seats, floorboards, dash and steering wheel with a clean drop cloth or disposable plastic covers. Note: Always wear eye and hand protection when working with glass. Make sure you have the right glass and moldings and that the urethane systems you are about to use are current. Windshield part numbers are FW2934, FW2935 and FW2936.

2. Drape the fender with a fender cover and tape up any vulnerable areas on the vehicle to protect against possible damage. Tape up the defroster vents to prevent debris from falling into the openings.

3. Remove the decorative panel around the base of the rearview mirror. It consists of two parts and separates in the middle. The mirror is a quarter-turn style. Once removed, let the mirror hang to avoid possible computer re-calibration of other components.

4. The rain sensor must be removed from the bracket attached to the glass. The rain sensor utilizes a gel pack and is held in place with a metal strap that attaches to the glass-attached bracket. Release the strap from the bracket and carefully peel the sensor from the glass surface. Note: Per reports, all BMW rain sensors, with the exception of those on the 3 Series, must be re-calibrated at the dealer. Be prepared to report this to the customer.

5. Remove the windshield-wiper nut covers.

6. Remove the windshield-wiper nuts using a 16-millimeter wrench or socket. Move the wiper arm in an up-and-down motion to break it loose from the post, or use a wiper-puller. Caution: Wipers can sometimes be hard to remove. To avoid stressing the post, use a wiper-puller.

7. Remove the eight Phillips-head retainers from the cowl panel fascia.

8. The top molding is wraparound style. A universal 20-mm molding can be used as a replacement.

9. The color-coordinated side A-pillar moldings have the pop-off sandwich-style clip that can be pried off using your fingers or a door-pad tool, similar to Audi and other BMW vehicles.

10. Before beginning windshield removal, verify the new windshield is the correct one and the urethanes and primers are current. Never use outdated products as this could jeopardize the structural integrity of the vehicle and the safety of its passengers.

Removal
11. Make sure cutting blades are sufficiently sharp.

12. Before cutting out the windshield, remove contaminants from the glass and pinchweld to prevent contact with the urethane.

13. Use the cutting tools of your choice to remove the glass from the adhesive bead. If you use a power tool, lubricate the cutting area with water. Spray the top and sides; then make your cuts.

14. Take the windshield out of the opening using vacuum cups. Make sure the vacuum cups do not overlap a crack in the glass. Lift the glass and place it on a windshield stand or suitable workstation.

Installation
15. After cutting the windshield out, remove contaminants such as dirt, moisture and debris from the pinchweld. Clean the dashboard.

16. Dry fit the new glass to the opening. Mark your glass using a grease pencil or retention molding tape.

17. Place your vacuum cups on the new windshield in the appropriate location.

18. Set the windshield onto the old urethane.

19. Adjust both sides to the correct setting, marking the passenger side, then the driver side. Lift the glass and place it on a windshield stand or suitable workstation.

20. Follow the urethane manufacturer’s recommendations for installation.

21. Clean the inside of the windshield using a urethane manufacturer-recommended product. Do not touch the bonding area of the windshield after cleaning, prepping or priming it.

22. Attach the upper molding to the glass edge.

23. Wear powder-free Nitrile gloves to protect against harsh chemicals.

24. Apply the glass prep and primer following the urethane manufacturer’s recommendations.

25. Using the tool of your choice, remove the original urethane bead, leaving 1 mm-2 mm of existing urethane on the pinchweld. Make sure there are no contaminants and do not touch the pinchweld after prepping the area.

26. Apply the pinchweld primer only to the areas where needed, and follow the urethane manufacturer’s recommendations. Allow preps and primers to dry as recommended by the urethane manufacturer.

27. Apply a triangular bead of urethane to the same path as the freshly cut urethane on the pinchweld. Before cutting your V-notch, cut the tip off of your nozzle with a nozzle-cutter at 90 degrees. With the cut nozzle, measure to the top of the roofline, and at 1/16-inch higher than the roofline, make a mark on the nozzle with a pen or marker. Notch the nozzle up to the marked line; this will give you the appropriate triangular bead.

28. Lift the windshield from the windshield stand or workstation using vacuum cups. Set the windshield on the urethane at the mark you made during your dry fit. Lower the driver’s side of the windshield onto the urethane and line it up with the dry-fit mark; it is now in place.

29. The windshield is now ready to be decked. Press firmly to ensure a good seal.

30. Before re-installing the parts, check for leaks. Use a leak detector to go over the perimeter of the windshield. If you find a leak, apply more pressure to the spot and ensure that the glass makes contact with the wet urethane.

31. Re-install the removed parts in reverse order.

32. Allow the urethane to cure according to the urethane manufacturer’s recommended cure time before returning the vehicle to the customer. Warning: Disregarding the safe drive-away time that your urethane manufacturer recommends could jeopardize the structural integrity of the vehicle and the safety of its passengers.

33. You have completed the removal and replacement of the windshield.

B. Back glass
Removal
1. Make sure you have the right glass. Back glass part number is FB23824.

2. The sides and top of the back glass have exposed edges. This part demands correct positioning. Make a note of the gap between the glass edge and the wall of the pinchweld prior to removal. This gap will have to be replicated to eliminate possible noise complaints.

3. The bottom is bonded with a lower trim piece that will come with the new glass.

4. Remove the interior garnish moldings and disconnect the three wiring harnesses. Two are for the defroster and one is for the keyless entry antenna. Two connectors are on the passenger side.

5. Using the tool of your choice, cut out the back glass. If you use a power tool, lubricate the cutting area with water. Spray the top and sides; then make your cuts. If your goal is to salvage the part, use an inside cutout or wire-out procedure.

6. Take the back glass out of the opening using vacuum cups. Make sure the vacuum cups do not overlap a crack in the glass. Lift the glass and place it on a windshield stand or suitable workstation.

Installation
7. After cutting the back glass out, remove contaminants such as dirt, moisture and other debris from the pinchweld.

8. Dry fit the new glass to the opening. Mark your glass using a grease pencil or retention molding tape.

9. Place your vacuum cups on the new back glass in the appropriate location.

10. Set the glass onto the old urethane.

11. With the back glass resting in the opening, make sure it is in the right spot.

12. Adjust both sides to the correct setting, marking the passenger side, then the driver side. Lift the glass and place it on a windshield stand or suitable workstation.

13. Follow the urethane manufacturer’s recommendations for installation.

14. Clean the inside of the back glass using a urethane manufacturer-recommended product. Do not touch the bonding area of the back glass after cleaning, prepping or priming it.

15. Wear powder-free Nitrile gloves to keep off chemicals.

16. Apply the glass prep and primer following the urethane manufacturer’s recommendations.

17. Using a pinchweld scraper, remove as much of the original urethane as the urethane manufacturer recommends. Before removing the old urethane, make sure there are no contaminants and do not touch the pinchweld after prepping the area.

18. Apply the pinchweld primer only to the areas where it is needed. Allow preps and primers to dry as recommended by the urethane manufacturer.

19. Apply a triangular bead of urethane to the same path as the freshly cut urethane on the pinchweld. Before cutting your V-notch, cut the tip off of your nozzle with a nozzle-cutter. With the cut nozzle, measure to the top of the roofline, and at 1/16-inch higher than the roofline and bodyline, make a mark on the nozzle with a pen or marker. Notch the nozzle up to the marked line; this will give you the appropriate triangular bead.

20. Place your vacuum cups on the back glass in the appropriate location.

21. Set the back glass in the opening.

22. The back glass is now ready to be decked. Press firmly to ensure a good seal.

23. Before re-installing the parts, check for leaks. Use a leak detector to go over the perimeter of the glass. If you find a leak, apply more pressure to the spot and ensure that the glass makes contact with the wet urethane.

24. Double check the gaps between the glass edge and the wall of the pinchweld. Be careful to restore the gaps to match the original to eliminate the possibility of noise complaints.

25. Re-install the removed parts in reverse manner.

26. Check operation of the back glass electronics.

27. Allow the urethane to cure according to the urethane manufacturer’s recommended cure time before returning the vehicle to the customer.

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