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Go to this web site: http://www.vintagebus.com/wiring/index.html
It has wiring diagrams for Bus, Beetle, Super Beetle, Karmann Ghia, Type 3, Type 4, Type 181 (Thing), Type 48 and Kubelwagen. Years ranging from 1950 - 1991.
Get the Bug Me DVD on electrics. ***OR*** visit: http://www.1302super.com/page19a.html for an official VW wiring diagram (Super Beetle only)
http://www.thesamba.com/vw/archives/info/wiring/bug_std_super_72.jpeg
The 1975 regular Beetle windshield will fit the 1971 Super Beetle.
The super beetle was not put into production until 1971, there is no such vehicle as a 1964 super beetle.
1971
I need a wiring diagram for the battery, starter, and solenoid of a 1971 Chevy truck, 350.
The Library
If you look at the front suspension of any beetle you can tell if it is a super or non-super beetle. If there is a McPherson front suspension then it is a super beetle. If there is a torsion bar front suspension then it is a non-super beetle.
I would suggest you purchase yourself a Chiltons or other repair manual. I wouldn't advise trusting your wiring needs to the internet. There are many many reasons why internet wiring diagrams can be troublesome, most of the time it has to do with the fact that no one reviews these diagrams before they go up. For the sake of you and your beetle, i would suggest a manual. However, should you want to view or download one there is an official VW wire diagram for it here, however contents in the index are written in German. http://www.1302super.com/page19a.html
33 Mpg
About 1780lbs.
A Super Beetle with a manual transmission has four forward gears and one reverse. A Super Beetle with an Autostick transmission has three forward and one reverse.