Do it while it's still legal...
Purely in the interests of consumer safety, it will soon be illegal to work on your own vehicle. Instead you'll have to have any work carried out by suitably qualified professionals.
Needless to say even if you've been a vehicle tech for 100yrs, you'll still have to pass some very costly euro-test to earn a piece of paper. Only then will you be allowed to continue with your life long profession.
Oh and the oik who just took the test but has never even seen a spanner, let alone an engine, is equally as qualified coz the piece of paper says so.