I don't know if this is a really good solution - but given the location of the main battery in a wbx vanagon it does provide a bit of protection - its a neg. disconnect switch.

http://shufti.wordpress.com/2012/08/24/vanagon-main-battery-kill-switch/

Further, I've helped a friend install a marine battery disconnect switch on the positive side. There we drilled through the wall of the battery box (wall on the "passageway")  so that a key can be inserted into the switch to turn it on/off.

cheers

alistair

On 2013-07-23, at 2:44 PM, Eric Wunrow wrote:

> Anyone have quick-to-do ideas on how to disable an '84 Westy on the
> road?
> 
> I'm thinking:
> 1) Remove coil wire;
> 2) Remove fuel injector relays;
> 3) Hire a bad-ass dog with really bad breath.  ;-)