You may need to remove the undertray
Undo the fixings -use 10mm socket
Carefully remove the undertray
Don't forget to place a suitably sized receiving tray in place!
With a oil catchment tray in position, Using a 17mm spanner or 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 the sump plug and washer
Replace (new) sump plug and washer. Do not over tighten. Now replace the undertray
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