It’ll most likely have aged out- for a number of reasons, partly that courses change so it gets very hard to align an old course and a new (ie, to make sure the teaching is compatible). And also, of course, people forget.
But it’s not going to be so simple for someone that’s also putting it into practice. Especially for Mech Eng. They’ll be worrying about your maths- HND engineering even today isn’t really mathematical enough for degree level- more than anything else, it’s an issue.
Speak to a university about it. In fact, I’ll PM you details of someone that’ll either get into it and be really helpful, or be a total grumpy ****.