i presume its a built in oven-Isolate the unit- (swtich offat mains)
take the unit out then at the back looking at it at the top right corner u will see two spades sticking out - thats ur oven element disconect those spades- then inside the oven where is a metal plate on the back wall u can see the fan in it! undo all the screws and take that plate off-then u will see the element around the fan! there are 2 screws which are at the top of the element which hold the element in place and also another at the end of it! take those out then u can remove the element! then put the new element in its place and reverse all the previous steps and your done! if you remove any cables make sure u note where they went or ur screwed! also it doesnt matter which was the connecters go back on the element but its nice to have it how it was! hope thats helped!
Graham, January 2006