Installing a windshield washer switch

I removed the standard windshield washer system from my curved windshield 1303 beetle. Not that it wasn't working, but I've got a temporary spare wheel which has a tyre that's a lot smaller than standard. So a system based on the pressure of the spare wheel wasn't such a good idea. I bought a windshield washer motor from a VW beetle parts shop. They also had steering columns switches which had the switch in it for the electric washer. But these were quite expensive. So, I installed a small switch in the place where normally the windshield washer fluid valve is. This page explains how I did it.

Remove the steering wheel, you'll need a 27 mm (I think..) socket wrench. The normal socket wrenches don't have a socket that big.

Remove the four screws and the connector under the steering column. See the red circels in the next picture:

Also disconnect the small hose that goes to the windshield washer, but first unscrew the hose from the spare wheel, otherwise you'll be sprayed with windshield washer fluid...
If I remember correctly you can disconnect the hose from the rear of the steering column.

You'll end up with this:

The black thing is the windshield washer fluidi valve, the little plastic thing that looks like the head of a nail activates the valve:

Remove the valve by undoing the two screws.

Order a small switch from your favorite electronics parts supplier:

I live in the Netherlands, and I ordered it from Conrad, the order number is 701074 - 89, the switch only costs 1.01 euros. I ordered 3, you'll never know when a small switch like that will come in handy.

Solder two wires to it (and use thinner wires than me, because the pins of the switch are really small), and drill the hole where the valve was mounted a little bigger so the switch will fit (depends on the switch you use). Put the switch in and use little spacers to determine the right distance:

(unsharp..)close-up:

Now wire the switch so the windshield washer motor is activated through a relay. The switch I used is 125 V~ / 0,5 A and I don't know how this will behave at 12 volts and a lot more amps which you'll have in a car. So you MUST use a relay!

Little wiring diagram:

Find yourself a fuse where you can hook it up without maxing out the amps for the fuse. Of course the fuse should only have current if the ignition switch is switched on.