Hi all,
Looking for a bit of help sorting my car out
Turned the key, bang, smoke rising from bonnet.

Looked under bonnet, couldn't find source. Too scared to try starting again.
Has been making a prolonged ignition whirring sound for about a year (had vw service in that time) - any suggestions??
p.s. how can i reset the computer so that I don't have to pay nose for 10k service?
Thanks