VW Polo manuals

Volkswagen Polo Service & Repair Manual: Fold Corrosion Servicing Notes

Corrosion on the Fold Edges, for Instance on the Hood, Door or also the Rear Lid
–  Remove the corroded areas with → Chapter „Pneumatic Brush Grinder Set -VAS6446-“ or → Chapter „Brush Grinder Set -VAS6776-“.
–  Sand the overlapping areas with P360 - P400 sandpaper.
–  Clean the base surface with Silicone Remover.
–  After a corrosion repair and before sealing, insulate the base surface with Two-Part Wash Primer -LHV 043 000 A2- and then fill with Two-Part HS Performance Filler.
–  After the filler has dried, the filled area must be dry sanded with P400- P500. While doing so, make sure to avoid “sanding through”. Then clean the sanded areas with Silicone Remover.
–  After the filler has dried and has been sanded, the metal edges in the fold area must be thinly sealed with a fine seam sealant. Refer to → Chapter „Sealing Materials“. The fine seam sealant must match the original state. Refer to → Paint; Rep. Gr.00.
  Note
When repairing, the seam sealant is to be returned to replicate stock visual appearance and layer thickness.
Sealing seams near attachments to be installed must be applied smoothly In order to avoid damage and malfunctions.
Water drain holes must remain free.
All threaded pins and weld nuts with M-threads, as well as all other pins and contact surfaces for the assembly must be functional after the sealant application.
The sealing material cannot be applied on blank sheet metal, but rather on filled surfaces.
–  Recreate the subsequent paint system according to the manufacturer's specifications.
–  Seal the cavities around the fold area with → Chapter „Suction Feed Spray Gun -VAG1538-“. Refer to → Chapter „Preservation“.
  Note
Service work is effective only when the fold area can be sealed airtight from the inside (so that no moisture can get in).
   
Cavity Sealant Area Example on Rear Lid
 

Fold Corrosion Servicing Notes

Cavity Sealant Area Example on Hood
 

Fold Corrosion Servicing Notes

Cavity Sealant Area Example on a Door
 

Fold Corrosion Servicing Notes

Fender Corrosion Repair Measures, in Wheel Housing Liner Contact Area
  Note The corrosion protection in the fender seam must be applied on all replacement parts, on which the attached seal is not already present. The additional ...

Corrosion Protection for Body, Attached and Welded Parts
Attachments Coat the insides of the fenders, doors, covers and lids completely. A spray application wet in wet procedure is sufficient. ...

Other materials:

Introduction
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One-Part Wash Primer
Definition: One-Part Wash Primer -LVM 044 007 A2-, light gray One-Part Wash Primer -LVM 044 171 A2-, dark gray Edition 08/2013 Product Description The ...

Expansion Valve
  Caution Non-approved tools or materials such as leak sealing additives can cause damage or malfunctions in the system. Only use tools and materials approved by the manufactu ...

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