Oil change Vauxhall Signum 2003 - 2005

You will need to remove the cars undertray

Here's the sump plug

Don't forget to place a suitably sized receiving tray beneath

Using a Torx 45 socket, carefully remove the sump plug and fully drain the oil. When the sump has emptied, wipe clean the sump plug area with a paper towel and refit a new sump plug and washer. Do not over tighten. Replace the undertray