Volume 13, Issue 3 - May-June 2011

The Cutting Edge
new car installations

2010 Smart Fortwo
by Jamie Browning

For vehicle and glass preparation please refer to AGRSS/ANSI 002-2002 as well as your adhesive manufacturer’s recommendations. Inspect the windshield for defects and any contamination that may compromise the bonding of the adhesive. Also look for any distortion, scratches or defects on the glass or underside moulding.

First, remove the rearview mirror by carefully sliding it upward toward the headliner. If the vehicle is equipped with a rain/light sensor (be sure to test the sensor before starting the job) unclasp the cover from the retaining housing and disconnect the wiring connector. Next unclasp the retaining clip that holds the sensor in place and carefully remove the sensor.

To remove the wiper arms gently remove the caps that cover the wiper nuts and then remover the wiper nuts. Next, Mercedes recommends that you use a puller to remover the wiper arm. Remove any service panels or cowl area parts that may interfere with a safe installation.

For the sides and top of the windshield, a cold knife or power tool can be used as well as wire. For the bottom, a power tool or wire can be used. Keep in mind that there is no one correct method of removal. The technician should use the tool that he feels most comfortable with and the one that achieves a safe removal (both for the vehicle and the technician).

Trim the existing urethane bead, leaving it 1 to 2 millimeters in height. Use your adhesive manufacturer’s pinchweld primer to prime all scratches, if any exist, and allow to dry, according to your adhesive manufacturer’s recommendations. Please note that only the full-cut method is permitted by the AGRSS/ANSI 002-2002 Standard.

Dry-fit the new windshield and mark it properly to ensure the correct setting procedure. Prepare the windshield according to your adhesive manufacturer’s recommendations, and then apply the adhesive and install the windshield. Make sure the deck height is correct and the markings on the windshield line up with those on the body that were applied during the dry set. Mercedes states that a urethane bead should be 12 mm high and 8 mm wide on this car.

Install the wipers and mirror in reverse order from removal and torque the wiper nuts to 15 foot pounds (20 Newton meters). If the vehicle was equipped with a rain/light sensor it is recommended that you use a new sensor pad and check to make sure the sensor works correctly. Check for any leaks and be sure to inform the vehicle owner of the safe drive-away time, according to the adhesive manufacturer. Also be sure to record all lot numbers from the adhesive and primers as well as the DOT number from the windshield.

Jamie Browning was the winner of the 2009 Pilkington Clear Advantage Auto Glass Technician Olympics. He has more than 17 years’ experience in the industry. Mr. Browning’s opinions are solely his own and not necessarily those of this magazine.

Always follow the AGRSS Standard and wear eye, hand and wrist protection while working on the vehicle. Inform the vehicle owner of the cure time and any other additional precautions before installation. Always return the vehicle to manufacturer’s specifications. Protect all interior and exterior portions of the vehicle to prevent any damage.


© Copyright 2011 Key Communications Inc. All rights reserved.
No reproduction of any type without expressed written permission.