Additional Assembly Instructions For Installing Retainer Plate For Headlight-Washer Spray Nozzle

Information 

Surface condition 

• The bonding surfaces must be free from oil, dirt, moisture, and paint and oxide layers  .
• If the bonding surface is exposed for more than 2 hours, or if it is dirty, it must be cleaned using isopropyl  .
• Use clean, lint-free disposable cloths to clean the surfaces  .

Information 

Temperature 

• Bond the retainer plate at an ambient temperature of between 20 and 25 °C  .
• The material temperature must be maintained so that there are no dew-point differences (condensation)  .

Information 

Applying adhesive 

• Adhesive must be applied using the EPX application system developed by 3M  .
• The original mixing nozzles must be used  .
• If the mixing nozzle is left on the cartridge for longer than the processing time of 2-3 minutes, it must be replaced with a new nozzle  .
• Adhesive must be applied in such a way that the bead of adhesive is pressed in by approx. 50 % at the joint. This is necessary in order to achieve adequate contact/coating  .
• The retainer plate must be affixed within the processing time of 2-3 minutes  .

Information 

Final Bonding Strength 

• An initial handling strength is achieved after approx. 3 hours. The affixed retainer plates must not be moved during this time  .
• The final bonding strength is achieved after approx. 24 hours at room temperature. No pressure should be applied to the bonded area during this time  .
• The final bonding strength is achieved after only about 30 minutes when stored at approx. 70 °C. No pressure should be applied to the bonded area during this time  .

1. Pre-treating the bonding surface before painting the front apron.
   1. 1.1. Clean the front apron -1-  at the left and right in the marked area -A-  with isopropyl.
      Fig 1: Cleaning Front Apron

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   2. 1.2. Mask the front apron -1-  at the left and right in the marked area -A-  using adhesive tape -2-  to prevent paint from being applied to the bonding area.
      Fig 2: Masking Front Apron

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
2. Install retainer plate.
   1. 2.1. Remove adhesive tape before installing the retainer plate.
   2. 2.2. Clean the front apron -1-  at the left and right again in the marked area -A-  with isopropyl.
      Fig 3: Cleaning Front Apron

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   3. 2.3. Apply adhesive as a bead of sealant with a height of approx. 3 mm in the marked area -A-  on the retainer plate -1-  .
      Fig 4: Identifying Adhesive Application Areas

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   4. 2.4. Affix retainer plate -1-  in the front apron -2-  (-arrow-  ).
      Fig 5: Identifying Affixing Retainer Plate

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.
   5. 2.5. Secure the retainer plate -1-  with adhesive tape -2-  on the front apron -3-  .
      Fig 6: Securing Retainer Plate

      Courtesy of PORSCHE CARS NORTH AMERICA, INC.