Has the OP checked the obvious - for a feed at the bulbs? It’s not unknown for both bulbs to have blown. Not both at the same time but first one and then later, the other.
When it comes to Electrics, you are undefeated. However, in this case you got it wrong.He did not say "permanently disconnected, painted over or masked, that are only used during daylight hours, and not used at times of seriously reduced visibility".
If on an MOT I discover that one of the headlights is not working although it was yesterday, can I just disconnect the two headlight cables and all will be well and pass?
The wire is already disconnected; a burnt out bulb literally is a disconnected wireBulbs in headlights do not work.
Is it true that if I were to disconnect the wire
That cannot say that. All they can say on the advisory is something along the lines of “Headlamps permanently disconnected at time of test. Headlamps not tested”You could see if your local test station is amenable to giving you an MOT pass with an advisory that your vehicle was not fitted with lights at the time of test and must be used during daylight hours only..
That's all true.That cannot say that. All they can say on the advisory is something along the lines of “Headlamps permanently disconnected at time of test. Headlamps not tested”
Unless the tester can see that the lamps are connected at the time of the test, they have to accept if told, that they are disconnected. They are not allowed to remove any covers to check the connection.