How do you change oil filter on opel vectra?

This answer applies to a 2005 Vectra with 3.2Lt V6 engine. The oil filter is on the front of the engine near the exhaust manifold and close to the radiator. It is a fixed canister type with a removeable lid which has a hex shaped head in the middle of it. Use a 15/16" socket to unscrew the lid. It unscrews anti clockwise (ie, it has a normal thread). Use a large flat container or plenty of paper on the ground under the car to catch the oil which will spill out of the oil filter. Once it is unscrewed, withdraw the filter lid complete with attached filter cartridge. Replace the filter cartridge making sure it snaps into place on the lid. Replace the rubber O-ring making sure it goes back onto the correct ring on the lid. Carefully position the lid and attached filter cartridge back into the cannister body - its more easily done by entering from under the car. Screw the lid back onto the cannister and tighten. Change the engine oil at the same time. To do this you'll need 5Lt of good quality 10W-50 engine oil and a torx-tip socket to open the sump plug. Safety notes:

- Never work under a car which is on a car jack or on unstable ground.

- Make sure the handbrake is on and at least one wheel is chocked.

- Beware of touching the exhaust pipe when it is hot - it can cause a nasty burn.

- Beware of hot oil which can also cause a nasty burn.

- If your skin is sensitive to engine oil, wear rubber gloves.