intermittent starting! can anyone help!

[Little_bro]

I've had a similar problem on my 944. Which turned out to be a corroded connecting block spade in the wiring loom between the solenoid to a connector in the engine bay. According to my scirocco mk2 Haynes manual (page 290 85 models onwards) the red and black wire from the solenoid is connected to a connecting terminal (t1d) near the brake master cylinder. If the connector has corrosion in it or a poor connection this might cause the solenoid not to engage.

[RossWP]

I'll have a look at that when I get a minute and it's not dark.

For the time being can I just wire a push button switch so it starts in the same way but without having to be under the bonnet? If so what amps would the switch need to be rated at?

Sorry for all the questions, I'm not good at electrics but am trying to learn a bit.

[Little_bro]

15 amp should be fine for the red/black wire from terminal 50 on the solenoid.

[RossWP]

15 amp should be fine for the red/black wire from terminal 50 on the solenoid.

Great, thanks