According to the owner's manual for my 1991 Volkswagen Vanagon GL
Campmobile, the ignition key fits all doors and the gas cap.  It does,
too.  The only key that differs is the latch for the glove compartment.  Of
course, if locks had been changed, that would not be true, but the vehicle
was evidently manufactured that way.  But, I don't mean to be disputing an
expert, just stating what works for my vehicle, and what the owner's book
states.

On Sun, Apr 7, 2019 at 8:20 AM Steve <vwcarlocks@hotmail.com> wrote:

>
>
> There are 4 depths of cut, therefor 4 different wafers.  The ignition may
> or may not use the same wafers as the door, depending on if the lock is
> original or not.  I generally scrounge through old wafers for gas caps,
> since I seldom rekey them.  I'd just leave out any that you can't shuffle.
> Note that most vanagon gas caps are not designed to use the main key, but
> the lock is so sloppy they can be made to work.  I do have a limited supply
> of new wafers.
>
> Sent from my Verizon Wireless 4G LTE smartphone
>