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

1. 1.1. Clean the front apron -1-  at the left and right in the marked area -A-  with isopropyl.
   Fig 1: Identifying Front Apron Cleaning Area

   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: Identifying Front Apron Marked Area

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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. 

1. 2.1. Remove adhesive tape before affixing the retainer plate.

   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. 
2. 2.2. Using the bonding gun, apply adhesive -1-  to the marked area -A-  of the front apron -2-  as a bead of adhesive measuring -X=3mm-  .
   Fig 3: Identifying Front Apron Adhesive Application Area

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3. 2.3. Affix the retainer plate -1-  to the marked area -A-  of the front apron -2-  (-arrow-  ).
   Fig 4: Locating Retainer Plate

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   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. 
4. 2.4. Secure the retainer plate -1-  with adhesive tape -2-  on the front apron -3-  .
   Fig 5: Identifying Retainer Plate

   Courtesy of PORSCHE CARS NORTH AMERICA, INC.