Where is the indicator flasher unit on a 2004 vauxhall corsa?

According to a Vauxhall main dealer the indicator flasher is located on the nearside under the bonnet behind the battery, you have to remove the battery to get to it so make sure you have the radio code prior to removing the battery.

The flasher unit is a yellow box housed inside another box held down with torx screws, make sure you seal the box back up correctly otherwise water gets in and causes further problems.

I got this information as i have yet to fit mine this weekend.