Well my headlamp 'failure' on the 2015 Aero Coupe turned out to be quite simple. Morgan Works had not plugged it back in properly after the last service visit and the connector was dangling around in the wheelarch! It took longer to jack the car up and take the wheel off than fix the issue. Annoying but glad it was as simple as that. Works also conspired to not adjust the locks correctly after some work, as the passenger door never locked and the driver door would not unlock. There is a very curious 'adjustment' system to get the actuator rod in literally just the right place. I am sure the factory are used to it but took a lot of trial and error.