You will need to remove the undertray to access the sump plug
Undo the four 12mm fixings - use a 12mm socket. Caution! The undertray is heavy. It must be fully supported during removal
Don't forget to place a suitably sized receiving tray beneath
Using a 17mm 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 fit a new sump plug and washer
Do not over tighten. Refit the undertray
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