You will need to open the sump access panel
Carefully remove the sump cover
The sump plug is located on the base of the engine, and it is accessed from underneath the car
Don't forget to place a suitably sized receiving tray in place
With an oil catchment tray in position, use a 17mm spanner or socket to 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 the sump plug and washer
Replace (new) sump plug and washer. Do not over-tighten
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