Bonnet warning light on but it's NOT open!!

[MiddxTVR]

Hi,...We have an A3 1.9 TDI 06 model..suddenly the bonnet warning light has come on, but the bonnet is shut, additionally the washers arent working!! any ideas for a simple fix or is it a new bonnet sensor???

[Silverbullet767]

How easy to get to is the bonnet sensor?

If it's a normally open switch, then simply shorting the 2 contacts will fool it into thinking it's closed, if it's a normally closed switch then you'll need to find a 12v supply to wire to it. and I think the washers not working is a direct result of the car thinking the bonnet is open.

Scratch that, shorting the switch will make it work either way!

Edited by Silverbullet767 on Monday 7th September 14:18

[Blue160]

had the same problem on my Fabia. You can't get a new microswitch without buying a whole new bonnet catch which is stupidly expensive.

Pulling out the wires and shorting them solves it.

[MiddxTVR]

thanks guys, i'll get my tool box out!!