Ground Point Preparation

This article is part of the VW Corrado World Library – Service:Electrical and Instruments Section
Thanks to Dave DuBois for writing this article. Published on 2007-02-10
The contents of this article are © Copyrighted and published under the following terms:
Released under the terms of the CC Attribution-NonCommercial-ShareAlike 2.5 License

Many electrical faults are caused by bad ground points.

To ensure a good bond for ground points on any metal surface in the car, proceed as follows:

1) Clean the area around the bolt hole down to bright, shiny metal. An easy of doing this is to use a pilot bonding end brush in a drill to clean around the hole (see below for where to get these brushes). If a brush is not available, scrape all paint off of the metal around the hole and then use sandpaper to get a perfectly clean surface.

2) Once the surface is cleaned down to bright, shiny metal, coat the surface well with any conductive, anti-corrosion surface compound, such as Kopr-Shield (see below for where to get Kopr-Shield).

Pilot bonding end brushes are available from MSC Industrial Supply Co. (800-645-7270)

1/2" End Brush with 3/16" pilot - P/N 00126722
1/2" End Brush with 1/4" pilot - P/N 00126730

Kopr-Shield – Thomas & Betts P/N 201-31879 is available from The Eastwood Co. It is also available at electrical supply outlets such as CED or Stussers and is probably available at Lowe's and Home Depot.

Looking for car parts or other automotive products? Visit the VW Corrado World Store
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"Ground Point Preparation"
Article by Dave DuBois – Published 2007-02-10

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