On certain Vauxhall Corsa models (2006+), after removing the sump plug as part of the oil service, the threads can be damaged.
Re-threading the plug leads to complications that includes subsequent oil leaks. Therefore, Corteco recommends that re-threading should always be dismissed as an option.
Corteco has introduced a cost effective aftermarket solution, which is a replacement plug, supplied complete with all washers required. It is supplied as part of a set that covers the fastest moving sump plugs in the UK car parc.